Who We Are:

Ethena Labs is building the first crypto-based reward-accruing synthetic dollar protocol. Arthur Hayes is a founding advisor and the team has deep experience across traditional finance and crypto engineering from firms such as Cerberus, Wintermute, BITMEX, Flow Traders, Deribit, Paradigm, GMX, Zircuit, Chainlink and Kaiko. We are backed by every major exchange and trading entity in the space.

What we are Doing:

We are building two interlinked products: a crypto-native synthetic dollar (USDe) and an Internet Bond (sUSDe) accruing rewards via a delta-neutral derivatives portfolio.

We believe creating a synthetic dollar which is not reliant on existing banking infrastructure is the single most important problem to solve and the largest opportunity in crypto today.

USDe will form the first part of a broader ecosystem of products we are building including fixed and floating rate Internet bonds and composable repo markets.

Join us!

This role must reside outside of the USA.

The Role

Ethena has quickly established itself as the fastest growing and most innovative financial product utilising digital asset technology to date. The Head of Trading Technology will own the entire trading technology stack, responsible for the overall strategy, development, and maintenance of Ethena’s trading platform. Which sits at the heart of, and powers, its flagship products: USDe & sUSD.

The role reports directly into the CTO, and includes leading a small team of trading technology engineers, collaborating with stakeholders in Trading, Risk and Ops teams. This role demands a hands-on leader with deep understanding of building trading systems. You’ll both guide your team and take a lead role in development.

Our focus is on high-quality engineering, resilient system design, development-velocity, and delivering best-in-class execution capabilities.

What You’ll Do

• Build and Own a Best-in-Class Trading System: Design and implement a robust trading platform that ensures efficient execution of large trade sizes with minimal slippage.
• Develop Market Data and Execution Capabilities: Build high-performance market data pipelines and ensure seamless integration with multiple trading venues (REST/WS, FIX, and other protocols).
• Drive New Product and Feature Development: Collaborate with quant and trading teams to develop and implement new trading strategies and execution logic.
• Foster Software Excellence: Apply modern software development best practices, such as TDD, BDD, test automation, CI/CD pipelines, and SOLID principles.
• Optimize for Performance and Resilience: Design fault-tolerant architectures with failover mechanisms to ensure high availability and reliability.
• Mentor and Grow the Team: Lead and mentor junior engineers, fostering a culture of high-quality engineering and technical excellence.

What We’re Looking For

• Engineering Leadership in Trading Technology: Proven experience leading and mentoring high-performing engineering teams within trading tech environments such as Investment Banks, Trading firms, Exchanges, or Market Makers.
• Extensive Experience in Trading Systems Development: Track record of building and supporting trading infrastructure from the ground up, including market data feed handlers, algo engines, backtesting frameworks, and execution platforms.
• Strong Software Engineering Fundamentals: Expertise in modern development practices (TDD, BDD, CI/CD, SOLID), how to write modular, clean, code, and resilient system design.
• Deep Understanding of Financial Markets: Strong knowledge of trading mechanisms, security protocols, and infrastructure management across multiple venues.
• Experience with Crypto Trading Venues and Derivatives: Hands-on experience working with centralized crypto exchanges (CEXs) and trading instruments such as perpetual swaps and deliverable futures.
• Multi-Venue Trading Experience: Understanding of order routing, trade reconciliation, and execution quality optimization across multiple trading venues.
• High-Performance System Design: Expertise in optimizing for system performance, ensuring low-latency execution, high throughput, and execution quality.
• Excellent Problem-Solving Skills: Strong ability to break down complex challenges into actionable solutions and make strategic technical decisions.
• Passion for Testing and Automation: Strong advocate for TDD, BDD, and test automation with hands-on experience in unit, integration, regression, performance, and end-to-end testing.

$250,000 - $300,000 a year

Why Ethena Labs?

• Join a forward-thinking, crypto-native company with a mission to revolutionize decentralized finance.
• Work alongside a passionate and innovative team that values collaboration and creativity.
• Enjoy a flexible, remote-friendly work environment with opportunities for growth and learning.

If you subscribe to the mission of separating the dollar from the state, then we want to hear from you!

We look forward to receiving your application and will be in touch after having a chance to review.

In the meantime, here are some links to more information about Ethena Labs to help you check us out:

• Website
• Twitter
• LinkedIn

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About Us

Chorus One is one of the leading operators of infrastructure for Proof-of-Stake networks and decentralized protocols. Tens of thousands of retail customers and institutions are staking billions in assets through our infrastructure helping to secure protocols and earn rewards. Our mission is to increase freedom and speed of innovation through decentralized technologies.

We are a erse team of 70+ people distributed all over the globe. We value radical transparency, striving for excellence and improvement while treating each other with kindness and generosity. If this sounds like you, we’d love to hear from you.

Position Overview:

As a senior software engineer, you will join one of our engineering teams to assist in building and maintaining tools and automation to support our validator operations. We take the upstream node software from projects like Ethereum, Solana, Cosmos, or Avalanche; compile it; run it on one of our servers; and then make sure it is reliable and secure, monitor it, and keep it up to date. We do this for more than 60 blockchain networks, which means that it is not feasible to do all of this by hand. Instead, we build automation. Some of the things we do:

• Contribute to upstream software to improve observability, and build monitoring tools from scratch where none exist. The teams that build the node software are not the teams that operate this software at scale, and as such, observability is often not a first priority. We develop our own tools for on-chain and off-chain monitoring, both for short-term metrics (to alert on) and long-term metrics to measure our performance, and to support optimisation decisions.
• Build tools to track and manage our fleet of servers. We work mostly with bare-metal servers across multiple providers. This means that no vendor-specific portal is going to give us a complete overview of our infrastructure, instead we have an in-house tool that integrates with vendor APIs and gives us a central overview.
• Automate machine provisioning. Instead of working with 10+ cloud and bare metal providers’ flavor of installing Ubuntu, we build our own installer that is uniform across our infrastructure.
• Track and automate builds. Each of the 60+ networks we operate regularly releases updates. It would be tedious to manually git pull && make for every release, instead we have automation watching for new releases that automatically builds them and registers them in our package registry.
• Automate updates and failover. When we have a new package, we still need to roll it out to our fleet and restart any nodes, in a controlled manner and without downtime. For validating nodes, we also need to fail over before we restart them, and confirm the new node is healthy. To automate this, we need to have 100% confidence in our tooling, because a mistake here can lead to double-signing, which incurs a financial penalty.
• Automate snapshot creation and storage. Blockchains node software is stateful in nature: the chains are often terabytes in size. While it is possible for new nodes to sync from the p2p network, this can take days to weeks, which means it is not a suitable method when we move workloads between machines. We automate taking snapshots of this data, so we can be more flexible about what runs where, without compromising on security.

Our internal tooling:

It is written in a mix of Rust, Python, Go, and a bit of TypeScript. We use Postgres as our database of choice. We deploy our code either directly onto Ubuntu hosts, running under systemd or in Docker containers, and we also have a Kubernetes cluster running various stateless applications. Due to the erse nature of the software we run, we also have to occasionally e into codebases written in C, C++, OCaml, or TypeScript.

You can learn more about our approach to operating nodes in our Network Handbook.

Key Responsibilities

• Design and develop new features. Discuss with internal stakeholders to clarify how our next feature should look, discuss with fellow engineers how it should be implemented, and then drive implementation to completion.
• Support and collaborate. Review and discuss engineering designs, review code, help fellow engineers, and mentor them on a technical level.
• Innovation and continuous improvement. Seek to simplify, optimize, and secure our staking services and systems.
• Take part in on-call rotation approximately 2 days per month. You will be responsible for automation that manages our validators and infrastructure, including its uptime and incident response.

Job requirements

What we are looking for:

• 5+ years experience as a Software Engineer.
• Experience with operating and maintaining server-side software in production.
• Deep understanding of at least one compiled statically typed programming language such as Rust, Go, Kotlin, C++, or Haskell.
• Experience with at least one scripting language such as Python.
• Experience using SQL databases, preferably PostgreSQL.
• Strong communication skills and ownership to drive new features independently.
• Interest in blockchain technology, in particular distributed systems and consensus algorithms.
• Affinity with infrastructure and the lower levels of Linux userspace.
• You are able to work in the following time zone: Switzerland ± 6 hours.

What We Offer:

🌱 Growth & Learning

We’re committed to your development! Benefit from an annual 3,000 CHF learning budget that goes beyond just conferences—supporting your physical, emotional, and mental well-being too. Attend up to two conferences a year to e deeper into the Web3 space and connect with the community. Plus, jumpstart your crypto journey with our $1,000 Crypto Starter Kit to explore and engage with cryptocurrencies hands-on.

🤝 Collaborative Culture

Collaboration is woven into our DNA. We thrive in multiplayer settings, ensuring every voice contributes to our mission. Connect across teams through our buddy programs, regular virtual coffee chats, and biannual retreats, which offer unparalleled opportunities to build stronger relationships while tackling some of the industry’s most exciting challenges.

✈️ Retreats in Iconic Destinations

Twice a year, we bring the entire team together for all-expenses-paid retreats in inspiring locations. Past retreats have taken us to Kenya, the USA, South Korea, Switzerland, Spain, Turkey, Thailand, Dubai and Japan. Our next stop? Budapest, Hungary! These retreats are designed to recharge, connect, and spark innovation.

🏡 Work From Anywhere

Embrace remote flexibility that empowers you to work from anywhere in the world. Prefer a coworking space? We’ve got you covered with a 500 CHF/month coworking budget. And for those growing their families, enjoy paid parental leave to ensure your personal and professional lives align seamlessly.

🗣️ Radical Transparency

We practice radical candor, fostering an environment of open, honest feedback that helps us grow inidually and as a team. Expect a culture where learning from each other is not just encouraged—it’s celebrated.

💸 Compensation & Equity

We offer a competitive fixed salary in your preferred local currency or stable coins, complemented by stock options, giving you a stake in the exciting future we’re building together.

💼 Employment

We offer flexibility to suit your inidual needs. With the ability to provide local employment in over 150 countries, you’ll have access to local benefits tailored to your region. Prefer contractor status instead? That’s an option too. During the offer, we work with you to determine the best arrangement, ensuring your experience aligns with your personal and professional preferences.

✨ Curious to see what life at Chorus One is really like? Check out these videos for a behind-the-scenes look:

• Culture at Chorus One

The Company

SimplyAnalytics is a powerful spatial analytics and data visualization application used by thousands of business, marketing, and social science researchers in the United States and Canada. It comes pre-packaged with 200,000+ data variables and allows our users to create maps, charts, tabular reports, and crosstabs. We are passionate about creating outstanding software, and we believe in test driven development, continuous integration, and code review.

As a smaller company, each of our developers has an important role to play - at SimplyAnalytics, you are not just another cog in the wheel, you are an integral member of our team. You will be working on valuable features and making key decisions that impact the direction of the product and our users. In addition, we provide an excellent work-life balance, with 100% remote work, 20 personal days off, flexible work hours, a collaborative work environment, and quarterly “professional development days” to explore and share your interests with the rest of the team.

**The Role

The ideal candidate has experience working on complex single-page applications, is a self-starter, has a high level of attention to detail, is comfortable asking questions, enjoys working with talented colleagues, and has an interest in analytics and data visualization.

We are a 100% remote company. Our employees can live and work anywhere in Canada, the United States, Mexico, Central America, or South America. This is a full-time salaried position. When applying, please include a cover letter.

Responsibilities:

• Design, develop, and test features, both in-house and customer-facing
• Write modern high-quality, clean, scalable, and maintainable code
• Contribute ideas for new features or improvements to existing features
• Assist colleagues through code-review, collaboration, and troubleshooting

Required:

• 8+ years of professional software development experience on large, structured code bases using vanilla JavaScript (this is not a React, Angular, Node.js, or full-stack position)
• Strong UI development skills (CSS & HTML)
• Open to learning new technologies
• Self-starter who gets things done
• Attention to detail

Bonus:

• Experience implementing data tables, charts, graphs, or other data visualizations
• Experience working on complex analytics, data visualization, or mapping applications
• D3.js experience
• MapLibre GL JS or Mapbox GL JS experience
• Experience with geospatial, demographic, business, marketing, or health data
• Experience with TypeScript
• Comfortable using Linux CLI

Datadog is hiring a remote Frontend Staff Engineer (Accessibility) - DesignOps. This is a full-time position that can be done remotely anywhere in Portugal.

Datadog - Modern monitoring & analytics.

Company Description

Role Description**

Responsibilities

Requirements

We’re looking to hire a Senior Full-Stack JavaScript Engineer with 5+ years experience who shares our passion for great product engineering. We’re looking for someone with strong backend skills and experience of developing and deploying in a high scale environment. Bonus points if you’re able to work full stack, but not essential for the role.

While most of our customers are based in the US, our technical team operates out of Eastern Europe and Asia. Therefore, we are seeking a candidate who can collaborate effectively across these two time zones.

**

You’ll be responsible for designing and delivering new product features and improving existing ones while keeping scalability, reliability, and performance in mind.

Our infrastructure is hosted on AWS, with PostgreSQL RDS powering our database, Node.js for the API, and Vue.js with TypeScript on the frontend. We prioritize clean, maintainable, and well-tested code and are seeking someone who shares this commitment to quality.

This is a great opportunity to have major input into a fast growing SaaS app and be part of an exciting, remote-friendly company.

There’s a big product roadmap ahead of us so we’re looking to build a long term relationship with the right candidate. Please read the following requirements carefully before applying.

**

• 5+ years experience with the majority in JavaScript
• Experience deploying software and database updates in a high scale environment
• Genuine interest in writing quality, maintainable code
• Experience independently designing and implementing large pieces of a system
• Proficiency in writing tests, with a strong focus on integration testing
• Strong relational database experience, preferably with PostgreSQL
• Using Node.js to build REST APIs, ideally using koa.js or express.js
• Keeps customers in mind and proactively raises issues or possible improvements
• Experience doing code reviews
• Git / Github
• Excellent spoken and written English
• Experience working remotely

**

• Experience with ecommerce platforms like Shopify and WooCommerce
• Experience using AWS EC2, ECS, CodeDeploy
• Frontend experience with Vue.js or similar
• TypeScript
• Experience with social media APIs
• UI/UX skills with a strong focus on using the Semantic UI framework for core components.
• Experience with the Semantic UI CSS framework

**

• A great team player and communicator
• We’re seeking a team member we can trust and build a strong, friendly relationship with. We place equal importance on cultural fit and technical expertise
• We don’t expect you to know every framework or API, but we do look for someone who is eager to learn and can quickly adapt to new technologies

**

• Salary range $45,000 USD to $60,000 USD depending on experience
• Opportunity to get stock options in fast growing tech startup
• Bonuses
• Full time, fully remote position
• Flexible working hours
• Co-working space allowance
• Low meeting environment and flat team hierarchy
• Friendly team that welcomes feedback
• Great opportunity to have a big impact and for career development
• Meet up and work with the team in great locations around the world

About the Team:

Zark Lab is building foundation models for blockchain transactions and information. Our work focuses on search, retrieval, and generative modeling applied to on-chain and off-chain data. We are developing systems that enable efficient indexing, retrieval-augmented generation (RAG), and vector search for structured and unstructured blockchain datasets. Our models process billions of transactions and smart contracts across multiple blockchains, applying sequence modeling, graph-based learning, and language models to extract insights and improve data accessibility.

The team consists of former founders, senior engineers, and executives from Google, Meta, Goldman Sachs, and other leading technology and financial institutions. Our backgrounds span large-scale distributed systems, machine learning, engineering, and information retrieval, and we are focused on advancing the state of AI-driven search and computation for blockchains.

What you will do:

• Build large-scale web scraping and ingestion pipelines for on-chain and off-chain blockchain data
• Develop and optimize search architectures, integrating vector search, ANN retrieval, and ranking models
• Fine-tune LLMs for query expansion, semantic search, and retrieval-augmented generation (RAG)
• Reduce query latency through index optimization, ANN search, and distributed execution
• Scale distributed indexing pipelines for efficient storage, deduplication, and retrieval
• Optimize distributed storage and compute with Snowflake, ClickHouse, RocksDB, and vector databases
• Build scalable systems to process high-throughput blockchain transactions and queries
• Deploy and optimize cloud workloads on GCP with Kubernetes and containerized processing

You might thrive in this role if you:

• BS/MS/PhD in Computer Science or a related field.
• 5+ years of experience in AI/ML, distributed search, or large-scale data processing.
• Strong programming skills in Python, TypeScript, or Node.js.
• Expertise in database design (SQL and NoSQL) and high-throughput data systems.
• Experience with web crawling, data scraping, and large-scale ingestion pipelines.
• Knowledge of vector search, retrieval-augmented generation (RAG), and embedding models (preferred).
• Hands-on experience with GCP, Kubernetes, and Docker for cloud-scale deployment.
• Passion for blockchain, AI search, and distributed systems.

Why join us?

• Work on cutting-edge generative AI and search technologies applied to blockchain
• Solve complex challenges in large-scale indexing, vector search, and AI-powered retrieval
• Be part of a high-caliber team of former founders, engineers, and executives from leading tech and financial firms
• Competitive salary and equity opportunities
• Fully remote team with a fast-moving, high-impact culture
• Own and shape the future of AI-driven search and retrieval for Web3

If you’re excited about search, generative AI, and real-time blockchain inference, we’d love to hear from you.

Apply now or reach out for more details.

Contra is looking for a skilled Full-stack Engineer to develop and maintain scalable, high-performance web applications. If you have experience in both front-end and back-end development and enjoy building seamless user experiences, we’d love to hear from you!

Responsibilities:

• Develop, optimize, and maintain both front-end and back-end components of web applications.
• Collaborate with designers and product teams to implement user-friendly features.
• Write clean, maintainable, and efficient code.
• Ensure responsiveness, security, and performance across all platforms.
• Integrate APIs and third-party services to enhance application functionality.
• Debug and troubleshoot issues to improve system reliability.

Requirements:

• Proven experience as a Full-stack Engineer with a strong portfolio or GitHub profile.
• Proficiency in JavaScript/TypeScript and front-end frameworks like React, Vue, or Angular.
• Back-end experience with Node.js, Python (Django/Flask), Ruby on Rails, or similar frameworks.
• Strong understanding of databases (PostgreSQL, MySQL, MongoDB, Firebase).
• Experience working with RESTful APIs, GraphQL, and authentication methods (OAuth, JWT).
• Knowledge of CI/CD pipelines and cloud services (AWS, Vercel, Netlify, Firebase).
• Strong problem-solving skills and ability to work independently.

Nice to Have:

• Experience with Next.js, Nuxt.js, or SvelteKit.
• Familiarity with WebSockets and real-time applications.
• Knowledge of containerization (Docker, Kubernetes).
• Understanding of DevOps practices and infrastructure as code.

🚀 If you're a Full-stack Engineer ready to build cutting-edge web applications, apply now!

Join Contra as a Framer Developer and play a key role in enhancing our networking platform. We’re looking for a skilled developer to create interactive user interfaces that elevate the user experience, all while contributing to our mission of empowering independent work.

Responsibilities

• Develop Interactive Components: Build and implement dynamic, interactive elements using Framer, ensuring seamless user experiences.
• Collaborate with Design: Partner with the design team to transform creative concepts into functional, interactive features.
• Optimize Performance: Write efficient, clean code that maximizes platform performance across a wide range of devices and browsers.
• Ensure Feasibility: Evaluate the technical feasibility of UI/UX designs, ensuring they are practical and executable within the platform's architecture.
• Maintain & Improve: Regularly update and enhance existing platform features, ensuring long-term functionality and scalability.

Contra is looking for an experienced Webflow Developer to help build and optimize our online presence. This role involves collaborating with the design team to create responsive, high-performing web experiences.

Responsibilities

• Develop & Design: Build responsive Webflow templates and layouts.
• Ensure Performance: Optimize site speed and scalability.
• Collaborate: Work with designers to create a cohesive visual experience.
• Troubleshoot & Improve: Identify and resolve Webflow-related issues.
• Document Work: Maintain clear development documentation.

The Job

As a DevOps Engineer, you'll be working with the engineering team to monitor and improve our security, infrastructure, and performance.

You'll be responsible for:

• Planning and performing infrastructure improvements and upgrades
• Triaging, replicating, and fixing potential security issues
• Performing and automating account support chores
• Maintaining high CI build success rates and low CI build run times
• Participating in the on-call rotation

Currently, our platform is built as a majestic Rails monolith, using Vue.js with Typescript on the front-end, and enhanced by Rust for select services and gems.

More details about our tech stack:

• Testing is done with RSpec & Capybara
• Continuous integration and deployment are done with CircleCI & GitHub Actions
• MySQL and PostgreSQL for our main databases
• ScyllaDB for our activity feeds
• Redis for session storage, queue management, and caching
• ElasticSearch for full-text search
• DevOps using Containers orchestrated with Kubernetes and Helm
• Service and performance monitoring is done with DataDog and Sentry
• Infrastructure managed with Terraform

About You

We're looking for someone who has proven experience maintaining large production-level Ruby on Rails applications.

Ideally, you have experience:

• Working with MySQL, PostgreSQL, and Redis
• Rails application development
• Maintaining infrastructure with Docker, Kubernetes, and Google Cloud

Additionally, since we're 100% remote, we:

• Highly value strong written communicators
• Require three hours overlap any time between 10 AM and 6 PM CET

About Us

FetLife is the largest kinky social network on this side of the Milky Way. We:

• Have over 10 million members and growing
• Grew 100% by word-of-mouth
• Serve over 3 billion requests a day

You can find our team and core values here.

Pay & Benefits

We use a standardised salary calculator for each position to ensure we are competitive, fair, and consistent. For this specific role, the rate is between $115k - $170k USD / year.

Additionally, we offer:

• Paid time off:
  • 2 weeks vacation
  • 5 statutory holidays (e.g. Easter & Thanksgiving)
  • 2 weeks during Christmas
  • 4-day workweeks during the summer months (July & August)
• Annual company retreat (e.g. Malaga, Miami, Vancouver, and Montreal)
• Annual anniversary gift (200$ USD for every year with us, e.g. 4th anniversary is $800)
• Monthly streaming music subscription reimbursement
• Fully paid maternity and paternity leave

Salary and compensation

Benefits

🌎 Distributed team

⏰ Async

🤓 Vision insurance

🦷 Dental insurance

🚑 Medical insurance

🏖 Paid time off

📆 4 day workweek

🏔 Company retreats

🖥 Home office budget

⬜️ No whiteboard interview

👀 No monitoring system

🎅 We hire old (and young)

**

Fully Remote | Part Time | Equity Based

**Roles and Responsibilities:

The Backend Engineering Consultant will take requirements directly from the CTO, and independently design and develop robust, production grade solutions. This is an inidual contributor role. The Engineer will be focused exclusively on design and development, not mentorship, cross training or management. Primary responsibilities include:

**Develop Microservices using Python

Our primary language is Python, and our API framework is FastAPI. The Engineer will spend much of their time designing, developing and extending Python modules to power the core logic of our graph.

**Create and Deploy Containers using Docker and GH Actions

We take a container-first approach, leveraging Docker to encapsulate our products for deployment to cloud infrastructure. We use GitHub Actions for CI/CD to target infrastructure such as ECR. The Engineer will create Dockerfiles and GH workflow files to define the necessary environment for each application and deploy it.

**Create Infrastructure Across Cloud Providers using IaC

Our product is intended to be used across all major cloud providers, e.g. AWS, GCP, Azure. As such, we leverage Terraform to declaratively define services across providers. You will create Terraform scripts which are capable of creating and manipulating infrastructure with complex configurations, across providers.

**

**Education and Relevant Experience

M.S. or B.S. in a S.T.E.M. or quantitative field is highly preferred, however, it is not required. Relevant experience with proven contributions is the highest indicator of potential for success in our opinion. We’ll look for 10+ years in a range of job titles or roles that overlap with the Roles and Responsibilities section. A clean GitHub demonstrating related skills is most important. However, we understand that many professionals don’t have time to create or contribute to public facing repositories, so we encourage applications from Engineers without a robust portfolio.

**Deliverable, Cost and Quality Mindset

danzek.ai™ is a startup, as such, we must be extremely focused on balancing time, cost and quality. The Engineer will need to select libraries and services that are cheap, yet effective. The Engineer will also need to design solutions which are extensible and carefully selected regarding scope. Lastly, the Engineer will be expected to mitigate tech debt at all costs by focusing on best practices, modern patterns and careful implementation.

**Trust and Integrity

As a startup, our IP is extremely valuable. We expect the Engineer to keep our code and designs secret, treating them with the utmost care from an InfoSec perspective. We’re offering the Engineer equity, as such, they have a tangible interest in protecting their ownership.

**Flexibility

As a consultant, the Engineer may work on days and times that are most convenient for them, and performance will be based upon contributions, not hours worked. We also don’t measure performance in KPIs such as a SLOC, which are often decoupled from quality and tangible benefits.

Contra is looking for a skilled Frontend Engineer to build and enhance user-friendly, high-performance web applications. If you have experience with modern JavaScript frameworks, responsive design, and creating seamless user experiences, we’d love to hear from you!

Responsibilities:

• Develop and optimize scalable, responsive frontend applications.
• Collaborate with designers and backend developers to implement UI/UX designs.
• Write clean, maintainable, and well-documented code.
• Ensure cross-browser and mobile compatibility.
• Optimize performance for speed and scalability.
• Stay updated with the latest frontend technologies and best practices.

Requirements:

Proven experience as a Frontend Engineer with a strong portfolio.

• Proficiency in JavaScript, TypeScript, React, Vue, or Angular.
• Strong understanding of HTML, CSS, and modern styling frameworks (Tailwind, SCSS, Styled Components, etc.).
• Experience with RESTful APIs, GraphQL, and state management (Redux, Zustand, Vuex, etc.).
• Knowledge of build tools (Webpack, Vite, Babel) and performance optimization techniques.
• Understanding of UI/UX principles and accessibility best practices.
• Strong problem-solving skills and ability to work independently.

Nice to Have:

• Experience with Next.js, Nuxt.js, or SvelteKit.
• Familiarity with testing frameworks (Jest, Cypress, Testing Library).
• Knowledge of CI/CD pipelines and deployment (Vercel, Netlify, AWS).
• Basic backend experience (Node.js, Firebase, or similar).

🚀 If you’re passionate about building interactive web applications, apply now!

Contra is looking for a skilled Web Developer to build and maintain high-performance websites. If you have experience in front-end and/or back-end development, a passion for clean code, and the ability to create seamless user experiences, we’d love to hear from you!

Responsibilities:

• Develop, optimize, and maintain responsive websites and web applications.
• Collaborate with designers to bring UI/UX concepts to life.
• Write clean, scalable, and efficient code.
• Ensure cross-browser and mobile compatibility.
• Debug and troubleshoot issues to improve site performance.
• Stay updated with the latest web technologies and best practices.

Requirements:

• Proven experience as a Web Developer with a strong portfolio.
• Proficiency in HTML, CSS, JavaScript, and a modern framework (React, Vue, or Angular).
• Experience with back-end technologies (Node.js, Python, PHP, or similar).
• Knowledge of databases (SQL, Firebase, MongoDB, etc.).
• Understanding of SEO principles and website optimization.
• Ability to work independently and meet deadlines.

Nice to Have:

Experience with headless CMS, Webflow, or WordPress.

• Familiarity with API integrations and third-party services.
• Knowledge of cloud platforms (AWS, Vercel, Netlify).

🚀 If you're a Web Developer eager to build innovative digital experiences, **apply now!

Netlify is hiring a remote Staff Infrastructure Site Reliability Engineer (EMEA). This is a full-time position that can be done remotely anywhere in the United Kingdom, Spain or Poland.

Netlify - All-in-one platform for automating modern web projects.

📍 Remote | ⏳ Full-time | 🌍 Elys Network

Build the Future of DeFi on Cosmos

Elys Network is a high-performance Layer-1 blockchain built on Cosmos SDK, designed for universal liquidity and next-gen DeFi applications. Our flagship product, UniFi, is redefining decentralized trading with on-chain order execution, liquidity aggregation, and yield generation.

We’re looking for a senior-level blockchain engineer (5+ years experience) who thrives in a structured setting with a steady rhythm but is just as comfortable charting unknown territory, solving complex problems, and rolling up their sleeves when necessary.

We respect work-life balance, but when urgent situations arise (rare, but real), you’re the kind of person who steps up to ensure everything runs smoothly—even if it means working outside normal hours on occasion. The most innovative products are built by those who embrace both structure and the unknown, adapting with intention and vision.

🚨 Disclaimer: If you’re not deeply involved in DeFi and blockchain protocol development, please don’t apply. This role requires expert-level knowledge of Cosmos SDK, CosmWasm, and blockchain architecture.

Your Impact

⚡ Blockchain Protocol Development

• 5+ years of experience designing and optimizing high-performance blockchain infrastructure on Cosmos SDK.
• 3+ years developing and deploying CosmWasm smart contracts for DeFi applications.
• Architect and maintain on-chain order execution, staking, and liquidity aggregation mechanisms.
• Enhance cross-chain interoperability through IBC integrations and custom relayers.

🔗 Blockchain Security & Optimization

• 3+ years working with security-first blockchain practices, including gas efficiency optimization, mempool processing, and transaction finality.
• Monitor network health, validator performance, and chain upgrades to ensure stability.
• Implement MEV mitigation strategies, front-running protections, and advanced transaction handling.

🚀 Leadership & Adaptability

• 5+ years of leadership or senior engineering experience, guiding teams in blockchain development.
• Mentor and review the work of junior and mid-level blockchain engineers.
• Collaborate closely with front-end engineers, product teams, and ecosystem partners.
• Thrive in ambiguity—some days require methodical planning, others demand quick decision-making in uncharted territory.
• Be flexible when urgency demands it—it’s rare, but when the stakes are high, we show up.

🛠️ Must-Have Skills (Senior-Level Experience)

• 5+ years in blockchain development, with deep expertise in Cosmos SDK and Tendermint.
• 3+ years of smart contract development, specializing in CosmWasm and Rust.
• 3+ years working with staking modules, IBC transactions, and cross-chain communication.
• 5+ years of experience in DeFi mechanics, including AMMs, lending, staking, liquidity provisioning, and governance.
• 3+ years working on network security, cryptographic principles, and consensus mechanisms.
• Proven ability to scale blockchain networks and optimize transaction throughput.
• 3+ years of hands-on experience with Golang, WASM optimizations, and validator infrastructure.
• Contributions to open-source Cosmos SDK, Tendermint, or CosmWasm projects.
• Founder-style ownership mindset—you don’t wait for permission to solve problems.

📈 Bonus Points

• Experience with AI-powered smart contract security analysis and automation.
• Deep knowledge of MEV, front-running protection, and on-chain data indexing.

Why Join Elys?

• 🚀 Work on the cutting edge of DeFi—structured, yet always evolving.
• 🌎 Remote-first, flexible hours, global team of builders.
• 💰 Starting salary: $90K – $150K, open to discussion. Option for tokens as part of salary—let’s talk.
• 📈 Long-term career growth in Web3 & DeFi.
• ⚡ Balanced workflow—steady rhythm when possible, deep problem-solving when needed.

Ready to Build?

• 📌 Apply Now – Send your resume, GitHub, and portfolio to:
• 📧 Email: [email protected]
• 💬 Telegram: t.me/jstamp
• 🐦 X (Twitter): x.com/mitchell_mmxxi

Join Elys Network and help redefine DeFi trading, universal liquidity, and blockchain scalability on Cosmos! 🚀

📍 Remote | ⏳ Full-time | 🌍 Elys Network

Build the Future of DeFi on Cosmos

Elys Network is a high-performance Layer-1 blockchain built on Cosmos SDK, designed for universal liquidity and next-gen DeFi applications. Our flagship product, UniFi, is redefining decentralized trading with on-chain order execution, liquidity aggregation, and yield generation.

We’re looking for a versatile, energized front-end developer—someone who thrives in a structured setting with a steady rhythm but is just as comfortable charting unknown territory, solving complex problems, and rolling up their sleeves when necessary.

We respect work-life balance, but when urgent situations arise (rare, but real), you’re the kind of person who steps up to ensure everything runs smoothly—even if it means working outside normal hours on occasion. The most innovative products are built by those who embrace both structure and the unknown, adapting with intention and vision.

🚨 Disclaimer: If you’re not big on DeFi, please don’t apply. This role requires a deep understanding and passion for decentralized finance, liquidity mechanics, and blockchain interoperability.

Your Impact

🖥️ Front-End Development

• Build and optimize React/Next.js-based Web3 applications (UniFi, staking, governance).
• Implement CosmJS to interact with CosmWasm smart contracts and IBC transactions.
• Ensure performance, security, and responsiveness for real-time blockchain interactions.

🔗 Blockchain & DeFi Integration

• Develop wallet connection flows (Keplr, Ledger, Leap Wallet).
• Optimize Cosmos IBC asset transfers, relayers, and liquidity flows.
• Integrate on-chain price feeds, liquidity pools, and order book execution.

🚀 Leadership & Adaptability

• Own problems end-to-end, balancing structured workflows with the ability to e into the unknown when needed.
• Lead and mentor front-end engineers, ensuring code quality and best practices.
• Work closely with blockchain engineers, product leads, and designers to refine UX.
• Thrive in ambiguity—some days are methodical, others require deep problem-solving and quick pivots.
• Be flexible when urgency demands it—it’s rare, but when the stakes are high, we show up.

🛠️ Must-Have Skills

• 5+ years in React, Next.js, and TypeScript development.
• 3+ years of Web3 experience, focusing on Cosmos SDK or CosmWasm.
• Proficiency in CosmJS, contract queries, and wallet interactions.
• Strong understanding of DeFi mechanics: AMMs, staking, liquidity pools, order execution.
• Experience with Cosmos IBC, multi-chain interactions, and asset bridging.
• Security-first mindset for wallet connections and smart contract execution.
• Contributions to open-source Cosmos SDK or CosmWasm projects.
• Founder-style ownership mindset—you don’t wait for permission to solve problems.
• Ability to thrive in structure while being unafraid to break new ground when needed.

📈 Bonus Points

• Knowledge of Golang, Rust, or CosmWasm smart contracts.
• Experience building DeFi platform dashboards and analytics pages.
• Familiarity with AI-powered DeFi insights, automation, or predictive analytics.

Why Join Elys?

• 🚀 Work on the cutting edge of DeFi—structured, yet always evolving.
• 🌎 Remote-first, flexible hours, global team of builders.
• 💰 Starting salary: $75K – $120K, open to discussion. Option for tokens as part of salary—let’s talk.
• 📈 Long-term career growth in Web3 & DeFi.
• ⚡ Balanced workflow—steady rhythm when possible, deep problem-solving when needed.

Ready to Build?

• 📌 Apply Now – Send your resume, GitHub, and portfolio to:
• 📧 Email: [email protected]
• 💬 Telegram: t.me/jstamp
• 🐦 X (Twitter): x.com/mitchell_mmxxi

Join Elys Network and help redefine DeFi trading, universal liquidity, and Web3 experiences on Cosmos! 🚀

Dropbox is hiring a remote PhD Machine Learning Intern (Summer 2025). This is an internship position that can be done remotely anywhere in the United States.

Dropbox - Keep life organised and work moving – all in one place.

Logos is a movement supporting the development of the decentralised web. Logos technologies lay the foundations for a freer internet upon which communities can evolve into network states. Each protocol in the Logos stack seeks to empower its users while upholding civil liberties and fundamental freedoms.

About Vac

public good protocols for the decentralized web.

This role is within the Vac Nescience unit, which develops Nescience A zkVM leveraging hiding properties.

The role

In this role, you will be responsible for conducting in-depth research and analysis of ZK argument systems.

The ideal candidate should be well-versed in zero-knowledge circuits written in Rust, with the ability to adapt to evolving research needs.

Your responsibilities will include designing zero-knowledge circuits, writing comprehensive specifications, and effectively communicating research findings through detailed write-ups.

Key responsibilities

• Research, analyze and design ZK argument systems and architectures for private computation.
• Write specifications and communicate research findings through write-ups.
• Analyze and give feedback for zero-knowledge circuits written in Rust.
• Break down complex problems, and know what can and what can’t be dealt with later.
• Perform security analysis, measure performance of and debug circuits.

You ideally will have

• Very strong academic or engineering background (PhD-level or equivalent in industry); relevant research experience.
• Deep understanding of Zero-Knowledge argument systems and related technologies (Nova, Plonk/Halo2, zk-STARK, zk-SNARK, circom), elliptic curve cryptography, and circuit design.
• Keen communicator, eager to share your work in a wide variety of contexts, like internal and public presentations, blog posts and academic papers.
• Experience in, and passion for, blockchain technology
• A strong alignment to our principles

Bonus points if

• Experience with low level / strongly typed languages (C++/Go/Rust)
• Experience with Open Source software

[Don’t worry if you don’t meet all of these criteria, we’d still love to hear from you anyway if you think you’d be a great fit for this role. Just explain to us why in your cover letter].

Hiring process

The hiring process for this role will be:

1. Interview with our POps team
2. Interview with team member from the Vac team
3. Pair programming task with the Vac team
4. Interview with Vac team lead

The steps may change along the way if we see it makes sense to adapt the interview stages, so please consider the above as a guideline.

Compensation

The expected compensation range for this role is negotiable, dependent on how we assess your skills and experience throughout our interview process. We are happy to pay in any mix of fiat/crypto.

About AutoGPT ✌🏼

At AutoGPT, we are on a mission to democratize AI by providing powerful digital assistants (agents) to everyone. Our platform is designed to empower businesses, level the playing field, and drive innovation with autonomous AI. We are building an open-source, AI-driven ecosystem that simplifies complex tasks and workflows. With our global community, we're working to make AI accessible and impactful for all users, regardless of their technical background.

**

• AutoGPT Marketplace: A marketplace where users can explore and build innovative AI agents.
• AutoGPT Builder: A graph-based, infinite canvas front-end that allows users to create agents using nodes, designed for non-technical users.
• AutoGPT Server: The infrastructure that powers AI assistants, automating tasks reliably and efficiently.
• AutoGPT Agent Library: A dashboard for managing and monitoring the performance of AI agents, giving users control and transparency.

**

As a Contract Frontend Engineer, you will play a pivotal role in building the user-facing portions of our AI Agent platform. This includes developing dynamic, responsive, and intuitive interfaces using the latest frontend technologies. You’ll be working alongside a talented team of engineers, designer, and product manager to create a seamless experience for both technical and non-technical users.

**

• Develop and maintain frontend features for AutoGPT’s marketplace, agent builder, and agent library using Next.js, React, and Tailwind CSS.
• Collaborate closely with the design team to integrate Figma designs into functional, user-friendly components, ensuring a refined user interface and smooth web animations (e.g., confetti for onboarding screens, or transitions) to enhance the product's polish.
• Enhance user experience by optimizing the performance, accessibility, and scalability of the platform.
• Work on the integration of backend systems, familiar with Python, Prisma, and Supabase, to ensure smooth interactions between the frontend and backend.
• Contribute to building and maintaining a design system to ensure consistency and high quality across all UI components.
• Help make AI programming and agent management accessible to a wider audience by creating intuitive, visually appealing interfaces for non-technical users.

**

• Proficiency with Next.js and React for building dynamic web applications.
• Experience with Tailwind CSS to create responsive and reusable UI components.
• Familiarity with Python, Prisma, and Supabase for backend integrations.
• Experience working with Figma to collaborate on designs and implement them in code.
• Strong understanding of web performance optimization, accessibility standards, and best practices.
• A collaborative approach to problem-solving, working with cross-functional teams in a remote-first environment.

**

• A passion for AI and its potential to change the world.
• Polished design sensibility: an understanding of design polish to ensure a refined, user-friendly interface.
• Experience with shadcn or similar design systems.
• Previous work on open-source projects or in start-up environments.

**

• Be part of a mission-driven company focused on democratizing AI and empowering businesses.
• We value empathy for our users, colleagues, and ourselves to build a supportive and sustainable work environment.
• Work on an exciting, innovative product that is shaping the future of AI accessibility.
• Join a highly collaborative and globally distributed team.
• Contribute to an open-source project with immediate user feedback and rapid iteration.

**

• Role: Contract (with potential for long-term collaboration)
• Remote: Fully remote and asynchronous
• Start Date: Immediate
• Compensation: Competitive, based on experience

We’re a digital agency with a focus on creating high quality, ethical user experiences. We are looking for a professional software engineer to strengthen our team: with us you’ll be able to participate in designing, building and managing complex, holistic software systems. You will work on production-grade cloud infrastructure, data models, application backend and frontend software, as well as on complex data integration and data processing pipelines. We offer a flexible work environment where you can continuously improve your expertise.

Required Technical Skills

• Experience in designing and developing production-grade software systems
• Python programming, including an understanding of the latest language features, the standard library, type hints, as well as commonly used developer tools and libraries (e.g. virtual environments, packaging, pytest, mypy, pylint, isort, ruff, git, requests, factoryboy)
• Django and at least one commonly used Python web framework for building APIs (e.g. Flask, Django REST framework, FastAPI)
• CI/CD workflows, preferably with GitHub Actions
• Application containerization, preferably with Docker
• Cloud architecture design and infrastructure provisioning, preferably in Google Cloud and with Terraform
• Relational databases and SQL
• Linux, including commonly used tools (e.g. file system, shells, package managers, service managers)

Required Non-Technical Skills

• Excellent communication skills in English
• An attention to detail with the ability to be effective at delivering working software
• A strong focus on technical simplicity and maintainability
• Good independent problem solving capabilities

Optional Skills

• The ability to communicate in German is valued but not required
• Data engineering or data science expertise (e.g. writing, deploying and maintaining data pipelines with dbt, Airflow or other similar technologies, or developing and deploying AI/ML models to production)
• Expertise with columnar databases/data warehousing (e.g. BigQuery, Redshift, ClickHouse)
• Frontend development with HTML/CSS/JavaScript, including frontend frameworks (e.g. React, jQuery, htmx)

What We Offer

• Trust & flexibility: a fully remote work environment with very few meetings and high inidual agency
• A bonus system that reflects the inidual contribution of a person to their projects and the company
• Opportunity for continuous learning and self-development, which is encouraged, supported and valued
• High levels of transparency within the company

Application

You can apply by sending your CV or a link to your up-to-date LinkedIn profile to [email protected] with the subject “Software Engineering Job”. Optionally, if there are any public code repositories that contain contributions from you, please also let us know.

Note that for applicants residing in Switzerland a regular Swiss employment contract is offered, while team members outside Switzerland will receive an external contractor agreement. Candidates residing in Switzerland or the European Union will be prioritized, however, for exceptional talents we are willing to make an exception.

Rain is looking to hire a Software Engineer Intern to join their team. This is an internship position that can be done remotely anywhere in Latin America.

Pulumi is hiring a remote Senior Frontend Engineer. This is a full-time position that can be done remotely anywhere in the United States.

Pulumi - Modern infrastructure as code.

Job description

• We are seeking a highly skilled Senior Software Engineer to join our team and contribute to the transformative tech evolution in healthcare. 
• This critical role involves developing, integrating, and optimising our backend and database systems. 
• You will work closely with our Chief Engineer and CTO to build and refine our software solutions, ensuring they remain at the cutting edge of innovation.

Your Role:

• Develop and maintain robust backend services using NestJS and Node.js, ensuring top-tier performance and security.
• Design and manage efficient REST API endpoints to optimise interactions with our SQL database.
• Collaborate with cross-functional teams to define, design, and deploy new features, focusing on backend logic and database performance.
• Ensure the scalability, security, and responsiveness of backend services.
• Uphold rigorous data protection standards and implement industry-leading security measures.
• Participate in code reviews to uphold high coding standards and foster continuous improvement within the development team.

What Youll Bring:

Essential Skills & Experience:

• At least 7 years of experience with:
• React
• React Vite
• REST API development
• Strong knowledge and hands-on experience with SQL.
• Proficiency in Prisma for database management.
• A minimum of 5 years of experience in REST API development using the NestJS framework.
• Expertise in backend development, specifically with NestJS, Node.js, REST APIs, and PostgreSQL.
• Experience in developing single-page applications using ReactJS.
• Strong understanding of TypeScript and Object-Oriented Programming (OOP) principles.
• Solid grasp of commonly used data structures.
• Proven experience with cloud hosting services (preferably AWS) and integrating them into development workflows.
• Exceptional problem-solving skills and meticulous attention to detail.
• A proven ability to thrive in collaborative, remote work environments, showcasing excellent communication skills and a commitment to team success.
• A portfolio demonstrating relevant projects.

Nice-to-Haves:

• Experience with CI/CD pipelines and version control systems like Git.
• Familiarity with agile development methodologies and project management tools.
• Knowledge of Redux for state management.
• A degree in Computer Science or a related field.

**

💸 Senior Engineer salary £95,000 💸 Staff Engineer salary £110,000

👋 Reporting to → Gonza Penovi, Engineering Manager

👯 Working in the → Engineering → Marketing Sites team (currently a team of two)

Are you a Senior or Staff Frontend Engineer who loves building high-performance marketing websites using React and TypeScript? Do you enjoy working autonomously, turning Figma designs into beautifully crafted, lightning-fast pages using modern full-stack meta-frameworks? If you thrive in an environment where you can experiment with the latest web technologies and have full ownership of your work, keep reading.

We’re a fully remote, independent, and profitable company with a friendly, experienced team. If you’re a pragmatic engineer who values autonomy, responsibility, and making an impact, we think you’ll be right at home here.

Why you’ll love this job:

• Full ownership of your work—no PMs, no hand-holding, just the freedom to create great web experiences.
• Cutting-edge tech stack—we’re always working with the latest versions of React, Next.js, Tailwind, and other modern web tools.
• Zero technical debt—we prioritize quality over shortcuts.
• Autonomy to experiment—if you see something cool, you can adopt it the next day.

**

We are fully remote

Our Co-founders are in different countries, and our team is spread across Europe, Brazil, and Canada. We don’t have an office!

Flexible, asynchronous working

It gives us task flexibility and work-life balance. Minimal meetings allow you to focus on deep work and get things done.

Profitable. Independent. Long-Term Focus.

We're a profitable company with a strong foundation. We operate independently, prioritizing long-term success and innovation.

Equity options for everyone

Work at Circuit for at least one year to qualify, and your equity vests over 5 years.

Annual company performance bonus

Paid in January and pro-rated to your start date in your joining year.

The right laptop for you

We’ll give you £3200 every three years to buy the laptop of your choice.

£500 a year for new tech/home office

Do you need a new desk, chair, keyboard, or headphones? Build a space to do your best work.

32 days of paid holiday per year

You can use it whenever you like. Four weeks in one go, one day off (almost) every other week, or anything in between.

Invest in your wellbeing

£1000 a year for gym memberships, fitness classes, sports equipment, alternative therapies, mental health resources, and more.

Annual team meet-ups in 5-star locations

We get together once a year as a team to collaborate, get to know each other, and have fun!

Enhanced parental leave

16 weeks on full pay and up to 52 weeks leave in total; through birth or adoption, have the time and resources to welcome your new addition.

Connect with each other

£1,000 a year for self-organized in-person work sessions. Plan team meetups to connect and build stronger bonds.

💫 There is so much more to tell you, but we can’t fit it all into one job advert! Visit our Careers Page and check out our Company Handbook to see if we are right for you.

**What you will be doing

Our Circuit Marketing Sites (CMS) team plays a crucial role in showcasing our products to the world. But right now, our marketing site isn’t keeping pace with our product innovations, and we’re looking for an experienced engineer to help us change that.

You’ll be responsible for owning entire pages and sections and translating design concepts into performant, SEO-friendly, and visually stunning experiences. There are no hard deadlines, no micro-management, and no layers of approvals—just the freedom to build high-quality web experiences at your own pace.

Once our core site is up to speed, you’ll have the opportunity to build mini-apps and interactive tools that capture attention, drive traffic, and generate leads. We love experimenting with creative ideas and pushing the boundaries of what’s possible.

Your typical day-to-day:

• Building high-performance marketing pages from Figma designs using Next.js, React and Tailwind.
• Owning projects from start to finish, ensuring a seamless blend of performance, aesthetics, and SEO best practices.
• Collaborating with our marketing design team to bring interactive and engaging web experiences to life.
• Making smart technical decisions—you’ll have full autonomy to implement new tools and technologies that enhance our site.
• Staying ahead of the curve by leveraging the latest web innovations (React 19, Next.js 15, etc.).
• Conducting code reviews and ensuring the highest level of quality in your work.

What you won’t be doing

• Having lots of meetings. Expect ~one meeting per week. If you rely on frequent check-ins to stay on track, we’re not the right fit.
• Working to unrealistic deadlines. We optimize for quality and long-term progress, not burnout!
• Managing people. While you’ll share knowledge and manage your own projects, this is a hands-on inidual contributor role.

We’d love to hear from you if you:

• Have 6+ years of experience in frontend development, with strong expertise in React, TypeScript, and modern full-stack meta-frameworks (e.g., Next.js, Astro, Remix, or similar).
• Like building fast, SEO-optimized, and visually stunning marketing websites.
• Understand performance optimization techniques, including server-side rendering (SSR) and static site generation (SSG).
• Are experienced working on public-facing marketing sites with a focus on performance.
• Work well independently and can figure things out, even when requirements change.
• Communicate clearly and enjoy working with designers to build the best websites possible.
• Can spot a simpler way to do something and aren’t afraid to suggest it!
• Are based in UTC-5 to UTC+2 time zones
• Can speak and write in English at a professional level.

It would be nice if you have:

• An eye for UI/UX and animations, with experience bringing designs to life.
• Familiarity with Sanity.io.
• Experience with Next.js
• Accessibility experience

**Who we are, what we do, and how it’s going

Back in 2017, we saw an issue with last-mile delivery - it was too complicated and stressful for drivers. Circuit started a mission to change that by choosing to develop an app that put the driver, and their customers, first.

We were astounded by the response we received. Within our first year, we had almost 1,000 customers, $100k in ARR, and a team consisting of our two co-founders, Jack and Pol. With a lean team of ~40, we’ve grown to $25M ARR, helping over 100,000 drivers deliver more than 1 billion packages worldwide—about 20 every second!

Our Hiring Process

Our hiring process for this role has five stages (if we include the 10-minute application!) and usually takes ~three weeks for the whole process. At every step, you will be able to ask questions of your own and make sure that we are the right choice for you.

**

Upload your resume and fill out our application form. It takes about 10 minutes to complete, and we don’t ask you to repeat anything that’s already on your CV!

Meet our TA Manager ☕

Technical interview with the hiring team

**Take-home assignment

Meet the CEO

**

🌿 If you need us to make any adjustments to our interview process, or if there is any way I can make you more comfortable for our first call, please let me know. Sadie

_Keywords: Senior Frontend Developer, Lead Frontend Engineer, Staff Frontend Developer, Web Development Specialist, Senior Web Developer, Marketing Site Engineer, SEO Optimization, React, Next.js

Fleetio is hiring a remote AI Engineer. This is a full-time position that can be done remotely anywhere in the United States, Canada or Mexico.

Fleetio - Modern fleet management software.

Steakhouse Financial’s mission is to pioneer open and transparent finance. We build transparent, efficient, and accessible financial primitives to power the next generation of capital markets on public blockchains. We empower leading DAOs and crypto-native companies including Sky (FKA MakerDAO), Lido, Morpho, Ethena, and ENS through strategy, risk, and financial advisory. Our focus areas include real world assets (RWAs), stablecoins, curating efficient lending markets, market making, and actively participating in markets via proprietary trading to enhance liquidity and overall market health.

We are gathering the best minds in finance, engineering, legal, data, and risk to build the future of finance.

About the Role:

As a Senior Full Stack Engineer at Steakhouse, you will have the opportunity to lead the development of a new generation of on-chain DeFi experiences. You’ll be in charge of shipping a suite of products that can scale to millions of users on top of infrastructure that is safely and efficiently processing transactions worth billions in underlying value. You will join a small but ambitious team with a wide range of responsibilities who are working to solve some of DeFi and TradFi’s most challenging problems. You will play a pivotal role in designing and implementing new primitives for DeFi in partnership with the largest and most sophisticated capital allocators in the world, to truly scale DeFi globally.

What you’ll do:

• Designing and developing new user-facing on-chain experiences that push the frontier of tokenized assets, DeFi, and institutional adoption of crypto.
• Deploying modern, full-stack web applications following best practices to ensure compliance, security, and availability across multiple geographies and networks.
• Take a leadership role in defining and driving architectural decisions, ensuring the platform is scalable, secure, and aligned with long-term business objectives
• Defining procedures around managing deployments, handling technical debt, and driving continuous improvement so that we can ship with quality and speed.
• Contributing in an open source manner to projects that aim to drive transparency and composability via on-chain systems, data, and and services (e.g. dashboards)
• Working closely with solidity engineers to integrated systems and API endpoints that enable modularity and composability for our platforms that expose blockchain functionality to front-end applications and external stakeholders
• Implementing monitoring and alerting systems to maintain high uptime and low-latency experiences
• Building CI/CD pipelines that leverage leading cloud infrastructure platforms (AWS, Google Cloud) and industry standard tools
• Collaborate with design teams to build responsive, modern web applications that delights users and excites industry partners
• Implementing Large Language Model-enabled experiences like chat interfaces or agentic frameworks
• Iterate rapidly with stakeholders to solve problems within DeFi and TradFi
• Guide junior and mid-level engineers, perform code reviews, and foster a culture of knowledge sharing and best practice adoption
• Champion engineering excellence and agile processes, ensuring projects are delivered on time and on budget

What we’re looking for:

• Bachelor’s or above in Computer Science, Engineering, or a related technical field.
• 5+ years of software engineering experience with a strong background in TypeScript, React, NextJS, Tailwind, and TanStack Query (e.g. T3 stack) as well as Python and SQL.
• Minimum of 2+ years of experience working in developing decentralized applications, ideally with another DeFi Protocol with a large user base.
• Ideally strong familiarity with web3 programing and using EVM-based tooling like, Foundry, Tenderly, etc.
• Expertise in Node.js, Python, Go, or similar on the backend, with a proven track record of building scalable REST or GraphQL APIs.
• Experience deploying applications across multiple regions using cloud platforms like AWS, Google Cloud.
• Familiarity with cloud-native architecture, VPC networking, telemetry and monitoring.
• Proficiency with containerization (Docker/Kubernetes), and CI/CD pipelines (Argo CD).
• Basic to intermediate familiarity with smart contracts, Ethereum, EVM-based chains, or other relevant blockchain technologies.
• Proven expertise in relational database management using PostgreSQL, including designing robust data schemas, optimizing SQL queries, and constructing scalable data pipelines
• Knowledge of secure coding practices, focused on implementing robust encryption, authentication, and authorization protocols (e.g., OAuth2, JWT).
• Practical experience with various DeFi protocols (e.g., lending, derivatives, AMMs, stablecoins) and an ability to design and implement complex financial logic on-chain.
• Knowledge of tokenization platforms, and relevant industry standards (e.g., ERC-20, ERC-721, ERC-1155).
• Excellent technical and non-technical communication skills, verbal and written.
• Strong emphasis on understanding the “why” behind requirements and commitment defining the “minimum scope.”

What we offer:

• Opportunities to be ambitious, grow, and push the frontier of global digital finance.
• Competitive compensation including salary, future token rights, and equity.
• True impact at scale - we have partnered with some of the world’s largest financial institutions to bring real world on-chain
• Work within a remote and highly collaborative team consisting of erse experts with the opportunity to travel to team events and conferences
• Regular opportunities for skill development, leadership roles, conference participation, and knowledge sharing in a supportive, fast-paced environment
• An environment where we work hard and have fun doing so!

Please email your cover letter and CV to [email protected]

Steakhouse Financial’s mission is to pioneer open and transparent finance. We build transparent, efficient, and accessible financial primitives to power the next generation of capital markets on public blockchains. We empower leading DAOs and crypto-native companies including Sky (FKA MakerDAO), Lido, Morpho, Ethena, and ENS through strategy, risk, and financial advisory. Our focus areas include real world assets (RWAs), stablecoins, curating efficient lending markets, market making, and actively participating in markets via proprietary trading to enhance liquidity and overall market health.

We are gathering the best minds in finance, legal, data, risk, and engineering and to build the future of finance.

About the Role: As a Senior Smart Contract Engineer at Steakhouse, you will be at the forefront of developing and optimizing smart contracts that will leverage and empower crypto-native and real world assets (RWAs). You will design and implement secure, efficient, and scalable smart contract solutions to solve some of DeFi’s and RWA’s most challenging problems. You will play a pivotal role in designing and implementing new primitives for DeFi in partnership with the largest and most sophisticated capital allocators in the world, to truly scale DeFi globally.

What you’ll do:

• Design, develop, and maintain secure, high-performance smart contracts (primarily in Solidity) to leverage - crypto-native and non-crypto-native assets and facilitate complex capital flows on-chain.
• Collaborate with cross-functional teams to ensure our smart contracts and protocols meet the highest security standards, undergo rigorous audits, and are designed to scale for large capital inflows.
• Take a leading role in shaping protocol-level decisions, introducing innovative features that enhance functionality, security, and accessibility for end users and institutional partners.
• Serve as a thought leader within the engineering organization, guiding junior and mid-level engineers, reviewing code, and establishing best practices for smart contract development and deployment.
• Work closely with product leads, data scientists, and other stakeholders to integrate and optimize real-world asset tokenization strategies, ensuring alignment with overall company objectives.
• Stay up-to-date with the latest developments in DeFi, smart contract standards, bridging solutions, and blockchain technology, proactively recommending improvements to existing infrastructure.

What we’re looking for:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field.
• 5+ years of software engineering experience.
• Minimum of 3+ years of experience working in blockchain engineering, ideally with another DeFi Protocol with a large user base
• A proven track record of shipping production-level smart contracts, ideally in decentralized finance or asset tokenization.
• Deep understanding of Solidity, EVM mechanics, common smart contract patterns, and familiarity with relevant frameworks (e.g., Hardhat, Truffle, Foundry).
• Strong knowledge of security best practices, including threat modeling, audits, and secure coding patterns (e.g., OpenZeppelin libraries).
• Experience with Layer 2 solutions, cross-chain bridges, or zero-knowledge proofs.
• Excellent technical and non-technical communication skills, verbal and written.
• Proven results in building and scaling a Defi protocol.
• Practical experience with various DeFi protocols (e.g., lending, derivatives, AMMs, stablecoins) and an ability to design and implement complex financial logic on-chain.
• Knowledge of tokenization platforms, and relevant industry standards (e.g., ERC-20, ERC-721, ERC-1155).
• Strong emphasis on understanding the “why” behind requirements and commitment defining the “minimum scope.”

What we offer:

• Competitive compensation including salary, future token rights, and equity.
• True impact at scale - we have partnered with some of the world’s largest financial institutions to bring real world on-chain
• Work within a remote and highly collaborative team consisting of erse experts with the opportunity to travel to team events and conferences
• Regular opportunities for skill development, leadership roles, conference participation, and knowledge sharing in a supportive, fast-paced environment

Please send CV + cover letter to [email protected]

**About Learning Tapestry**

Hi! We're Learning Tapestry. We're a 25+ person all-remote, global organization dedicated to making digital learning "just work" for educators and learners alike. We solve hard problems in complex education technology environments. We’re a triple bottom line company: we make a profit like any good business; our work makes the world better (“social impact”); and we strive to create a healthy internal work environment for everyone who works here. For our staff we believe in flexible work locations and working arrangements.  We empower all of our team members to manage their schedules and adjust as necessary. We're focused on results and impact, not locations and hours. We hire people with great technical ability, but we also expect everyone at Learning Tapestry to have a strong personal character and solid communication skills. We highly value effective software architecture, test-driven development methods, and good project management methodology. We believe in having a strong CI and deployment pipeline that enables us to focus on writing good software.

*\*What We’re Looking For**

You’re an exceptional professional software engineer with at least 8 years of software engineering experience. You’re comfortable in multiple languages, but in particular you are strong in backend coding using Ruby on Rails, and frontend engineering with React (or you are expert in an alternative frontend framework and are willing to learn/use React for some projects). Our ideal candidate is available 30-40 hours per week during US Central standard business hours. We ask everyone who works here to be fluent or highly proficient in written and spoken English, and easily understood by US-based speakers (we ask for this to allow everyone in the company to be able to communicate with each other, rather than having to go through intermediates). Please read through this entire job description before applying, as there is critical information about how to apply included.

Please do not apply by reaching out to other company emails or iniduals: please note that applying using other communication channels will result in your application not being considered.

**Required Skills and Experience**

• At least eight years of Software Engineering Experience, with a minimum of five years doing senior engineering work such as solution design, architecture, code review, full stack engineering, or similar tasks.
• You have very good written communication skills, fluent written English, and comfortable, clear spoken English. 
• Must be available during US Central standard business hours (UTC -6) 
• You can write in multiple languages fluently, efficiently, and reliably, and are expert in writing in Ruby on Rails, and React (or similar modern JS framework).
• Help maintain professional standards for the entire organization.
• Have deep, substantial expertise in multiple programming environments.
• Capable of executing projects across multiple technical domains (“full stack,” data architecture, devops, etc).
• Have an interest and ability to learn new technical subjects when you need to solve new types of problems. 
• Can pursue investigation and problem solving into issues to resolve them, and can also recognize when it’s more efficient to ask for help vs push forward to solve a problem. Believe that all technical problems are solvable with enough effort.
• Have humility and kindness with regards to others and their own abilities. Seek to help others; seek to share what you know; want to see your work have an impact in the world.
• Substantial, practical expertise in implementing:
  • SQL-based databases
    • Can design complex data structure implementations.
    • Has experience with schema and other data migrations to meet new code and feature complexity requirements.
    • Can write SQL queries and make performance optimizations.
    • Can implement standard connectivity to/from SQL servers.
  • DevOps
    • Deployment and CI/CD
    • Have a solid knowledge of designing and implementing devops pipelines, using tools such as docker, kubernetes, or related systems.
    • Can develop strategies for managing cached data to optimize performance, using tools like Fastly, Cloudfront, Cloudflare, other CDNs, Varnish, or Redis.
    • Understand basic infosec principles to design, evaluate, and operate systems securely.
  • Solutions Design / Systems Architecture
    • Can work with business analysts, product managers, and senior executives to understand the business problems and propose, adapt, and design technical solutions to meet those needs.
    • Can translate technical concepts to non-technical audiences and simplify complex concepts without oversimplifying.
    • Able to explain technical issues in actionable ways to non-technical people.
    • Can design and configure/operate the technical systems required to implement a technical solution.
    • Understand cryptography and security enough to design systems that use existing login/identity standards securely (OAuth2, JWTs, etc).
    • Avoids overly complex technology solutions, preferring complexity levels based on the needs of specific projects.
    • Recognize that the best technical solution is not always the best business solution, and can negotiate with stakeholders accordingly.
    • Are not overly enamored with brand new technologies, and have the maturity and experience to evaluate new technology against existing solutions objectively.
    • Can write clear, simple specifications to reflect how a system will be built.
  • Testing and Reliability Engineering
    • Understand TDD vs manual QA Engineering, and where each is appropriate in developing software.
    • Insist on building automated testing frameworks when necessary for software pipelines, and know how to implement “enough testing” without relying on a “test everything” approach. 
    • Can design functional monitoring solutions for uptime management.
    • Capable of implementing test automation using tools such as Cypress, Postman, Swagger/OpenAPI.
    • Can write developer docs for a project to assist a new engineer in learning to develop in a codebase. Can train and support new engineers on existing systems, to get them up and running quickly.
    • Can create uptime failure recovery documentation: what to do when a system fails.
    • Can debug and analyze production systems for faults.
    • Can conduct performance testing using K6, New Relic, Skylight, JMeter, and similar tools to find performance issues, design faults and system optimizations.

**Bonus skills**

• Experience in Ed Tech Field (Education projects)
• Experience with Project Management tools, such as Github boards, Trello, Asana, or Jira. (We generally use Github boards.)
• Can develop or integrate coding projects with cloud-based architecture such as AWS API Gateway, Route66 (and DNS generally), SSL certificates, cloud-based private network routing, etc.

**To Apply**

Apply with your resume and a cover letter. In order to be considered for this role, please confirm your working availability and your hourly rate (in USD) in your cover letter.

**About You**

You’re confident in your skills as an engineer and professional, and have humility about how you bring your expertise into the workplace with others. You’re comfortable in a remote work environment, with team members from different time zones, countries, and cultures. You manage your own time well and are a self-starter. You have a distraction-free place you can use for work that offers reliable Internet access (suitable for voice/video calls and development uses), either in your home or a local co-working facility.

You are experienced and well-versed in the productivity tools we use, like Google Apps & Hangouts, Slack, and Harvest for time tracking.

You’re fluent or highly proficient in written and spoken English. 

Please do not hesitate to apply if you do not match these requirements exactly but think you could be a good fit for this position. Just let us know why you’re a good fit!

**Equal Opportunity**

Learning Tapestry is an equal opportunity employer and encourages iniduals of all ethnic and racial backgrounds, sexual orientations, and gender identities to apply. We are also particularly interested in iniduals who have lived in or worked with underserved communities such as low-income, gender nonconforming, disabled, or indigenous peoples.

Steakhouse Financial’s mission is to pioneer open and transparent finance. We build transparent, efficient, and accessible financial primitives to power the next generation of capital markets on public blockchains. We empower leading DAOs and crypto-native companies including Sky (FKA MakerDAO), Lido, Morpho, Ethena, and ENS through strategy, risk, and financial advisory. Our focus areas include real world assets (RWAs), stablecoins, curating efficient lending markets, market making, and actively participating in markets via proprietary trading to enhance liquidity and overall market health.

We are gathering the best minds in finance, legal, data, risk, and engineering and to build the future of finance.

About the Role: As a Senior Smart Contract Engineer at Steakhouse, you will be at the forefront of developing and optimizing smart contracts that will leverage and empower crypto-native and real world assets (RWAs). You will design and implement secure, efficient, and scalable smart contract solutions to solve some of DeFi’s and RWA’s most challenging problems. You will play a pivotal role in designing and implementing new primitives for DeFi in partnership with the largest and most sophisticated capital allocators in the world, to truly scale DeFi globally.

What you’ll do:

• Design, develop, and maintain secure, high-performance smart contracts (primarily in Solidity) to leverage - crypto-native and non-crypto-native assets and facilitate complex capital flows on-chain.
• Collaborate with cross-functional teams to ensure our smart contracts and protocols meet the highest security standards, undergo rigorous audits, and are designed to scale for large capital inflows.
• Take a leading role in shaping protocol-level decisions, introducing innovative features that enhance functionality, security, and accessibility for end users and institutional partners.
• Serve as a thought leader within the engineering organization, guiding junior and mid-level engineers, reviewing code, and establishing best practices for smart contract development and deployment.
• Work closely with product leads, data scientists, and other stakeholders to integrate and optimize real-world asset tokenization strategies, ensuring alignment with overall company objectives.
• Stay up-to-date with the latest developments in DeFi, smart contract standards, bridging solutions, and blockchain technology, proactively recommending improvements to existing infrastructure.

What we’re looking for:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field.
• 5+ years of software engineering experience.
• Minimum of 3+ years of experience working in blockchain engineering, ideally with another DeFi Protocol with a large user base
• A proven track record of shipping production-level smart contracts, ideally in decentralized finance or asset tokenization.
• Deep understanding of Solidity, EVM mechanics, common smart contract patterns, and familiarity with relevant frameworks (e.g., Hardhat, Truffle, Foundry).
• Strong knowledge of security best practices, including threat modeling, audits, and secure coding patterns (e.g., OpenZeppelin libraries).
• Experience with Layer 2 solutions, cross-chain bridges, or zero-knowledge proofs.
• Excellent technical and non-technical communication skills, verbal and written.
• Proven results in building and scaling a Defi protocol.
• Practical experience with various DeFi protocols (e.g., lending, derivatives, AMMs, stablecoins) and an ability to design and implement complex financial logic on-chain.
• Knowledge of tokenization platforms, and relevant industry standards (e.g., ERC-20, ERC-721, ERC-1155).
• Strong emphasis on understanding the “why” behind requirements and commitment defining the “minimum scope.”

What we offer:

• Competitive compensation including salary, future token rights, and equity.
• True impact at scale - we have partnered with some of the world’s largest financial institutions to bring real world on-chain
• Work within a remote and highly collaborative team consisting of erse experts with the opportunity to travel to team events and conferences
• Regular opportunities for skill development, leadership roles, conference participation, and knowledge sharing in a supportive, fast-paced environment

Please send CV + cover letter to [email protected]

Argent is looking to hire a Senior iOS Engineer to join their team. This is a full-time position that can be done remotely anywhere in Europe.

We're seeking a Senior Software Engineer with deep Golang, UNIX, and cloud (AWS/GCP/Azure) expertise to join our dynamic team.

You will:

• Develop Golang backend services.
• Architect cloud-native solutions.
• Work full-stack.
• Work on Open Source

You Have:

• 7+ years Golang experience.
• Strong UNIX/Linux skills.
• Experience with different databases and distributed systems
• Cloud platform (AWS/GCP/Azure) expertise.
• API/microservices experience.
• Containerization (Docker/Kubernetes) knowledge.

About Us

Flipside orchestrates blockchain growth through a powerful mix of data, science, and community. We drive measurable market cap growth for blockchain ecosystems, empower analysts with industry-leading data, and empower anyone to earn tokens by shaping the onchain economy.

At the heart of our approach is a proprietary wallet scoring methodology that transforms raw onchain data into actionable growth strategies. This highly quantitative framework drives meaningful ecosystem awareness, acquisition, and activation—and has catalyzed billions in value creation for Flipside partners like Solana, Avalanche, NEAR, Aptos, and more.

Founded in 2017 and backed by leading investors like Republic, Galaxy, and True Ventures, Flipside is a remote-first company with a global team of nearly 100. With an energetic community of 180,000 analysts, and dozens of top-tier blockchain partners, growth knows no bounds at Flipside.

The Data Analytics Team

The Data Analytics Team at Flipside Crypto builds cutting-edge analytics products for the blockchain industry. We’re seeking an Analytics Engineer to help expand our analytics capabilities and serve as a bridge between our technical teams and customers.

Position Overview

This is a fully remote position open to international candidates. As an Analytics Engineer, you’ll play a crucial role in designing and implementing data solutions while serving as a subject matter expert for blockchain analytics.

Core Responsibilities

• Design and implement data models using dbt and SQL for blockchain data analysis
• Create comprehensive analytics product specifications and metric definitions
• Develop and maintain data pipelines for both on-chain and off-chain data sources
• Collaborate with Data Product team on initiatives
• Mentor team members on blockchain data analysis best practices
• Collaborate with Product and Data Science teams to define analytical requirements
• Contribute to the development of standardized blockchain data frameworks

Required Qualifications

• 3+ years of experience working with complex data sets
• Demonstrated expertise in blockchain data structures and analysis
• Advanced SQL skills, particularly with modern data warehouses (Snowflake, Athena, etc.)
• Proficiency in dbt and data modeling (star schema, dimensional modeling)
• Strong background in ETL pipeline development
• Excellent problem-solving abilities and analytical mindset

Technical Skills

• Data Warehousing: Snowflake, Athena, Hive, PostgreSQL, SQL Server
• Data Modeling: dbt, dimensional modeling, star schema
• Domain Knowledge: Blockchain protocols, smart contracts, DeFi metrics
• Programming: SQL (required), Python (bonus)

Soft Skills

• Outstanding written and verbal communication
• Self-directed project management capabilities
• Ability to thrive in ambiguous environments
• Strong collaboration and mentorship abilities
• Excellent stakeholder management

What Sets You Apart

• Experience with multiple blockchain protocols
• Contributions to blockchain analytics open-source projects
• Background in DeFi or crypto-native companies
• Experience working with real-time blockchain data

About Helius

Helius is a leading developer platform on the Solana blockchain, dedicated to inspiring and accelerating the creation of crypto-powered software. Customers like Coinbase, Jupiter, and Phantom use Helius to power their applications on Solana.

We’ve raised over $34m from Haun Ventures, Founders Fund, Foundation Capital, 6th Man Ventures, Reciprocal Ventures, Chapter One and angel investors including Solana co-founders Anatoly Yakovenko and Raj Gokal, and Balaji Srinivasan. Our team members have previously built mission-critical, scalable infrastructure at AWS, Coinbase, Stripe, Google, Digital Ocean, and more.

Here is the Helius Manifesto so you know what to expect if you join Helius.  

Role Description

We are looking for a Rust Engineer with experience in building and scaling distributed systems to join our growing team. If you have a passion for blockchain technology and a strong sense of ownership, we’d love to hear from you!

Responsibilities:

• Implement and maintain backend services following established architectural patterns and best practices
• Work with team members to integrate new features into existing infrastructure components
• Debug performance issues and implement solutions with guidance from senior engineers
• Help set up and maintain monitoring systems for services you’re responsible for
• Follow security best practices and coding standards while implementing new features
• Participate in code reviews and contribute to technical discussions within the team

Requirements:

• Proficient with Rust
• 3 years of experience with Rust or a similar language (C++, Golang, Java, etc).
• 3 years of experience building & maintaining high-scale production systems.
• Proficient with distributed systems and databases.
• Demonstrated ability to work autonomously, execute at speed, with excellent communication and collaboration skills.
• Startup and/or web3 experience is a bonus.
• Experience that is relevant to Helius is a major advantage.

What We Offer

• Competitive salary and equity package
• Flexible work hours and remote-friendly environment
• Generous vacation and time-off policy
• Wellness, travel, and educational budgets
• Opportunities for personal and professional growth in a fast-paced, dynamic industry

Helius is an equal opportunity employer.

About Helius

Helius is a leading developer platform on the Solana blockchain, dedicated to inspiring and accelerating the creation of crypto-powered software. Customers like Coinbase, Jupiter, and Phantom use Helius to power their applications on Solana.

We’ve raised over $34m from Haun Ventures, Founders Fund, Foundation Capital, 6th Man Ventures, Reciprocal Ventures, Chapter One and angel investors including Solana co-founders Anatoly Yakovenko and Raj Gokal, and Balaji Srinivasan. Our team members have previously built mission-critical, scalable infrastructure at AWS, Coinbase, Stripe, Google, Digital Ocean, and more.

Here is the Helius Manifesto so you know what to expect if you join Helius.  

Role Description

We are looking for a Senior Rust Engineer with experience in building and scaling distributed systems to join our growing team. If you have a passion for blockchain technology and a strong sense of ownership, we’d love to hear from you!

Responsibilities:

• Design, implement, and maintain scalable and reliable backend infrastructure to support our growing suite of developer tools and services
• Collaborate with cross-functional teams to ensure seamless integration of infrastructure components with existing systems
• Identify bottlenecks and optimize performance of our services to handle increasing traffic and load
• Develop monitoring and alerting systems to maintain high levels of system availability and performance
• Continuously improve system architecture, security, and best practices to stay up-to-date with industry standards
• Mentor and support other team members in understanding and implementing complex technical concepts

Requirements:

• Strong proficiency with Rust.
• 5 years of experience with Rust or a similar language (C++, Golang, Java, etc).
• 5 years of experience building & maintaining high-scale production systems.
• Strong proficiency with distributed systems, databases, and high-performance applications.
• Demonstrated ability to work autonomously, execute at speed, with excellent communication and collaboration skills.
• Startup and/or web3 experience is a bonus.
• Experience that is relevant to Helius is a major advantage.

What We Offer

• Competitive salary and equity package
• Flexible work hours and remote-friendly environment
• Generous vacation and time-off policy
• Wellness, travel, and educational budgets
• Opportunities for personal and professional growth in a fast-paced, dynamic industry

Helius is an equal opportunity employer.

Grafana Labs is hiring a remote Technical Support Engineer UK. This is a full-time position that can be done remotely anywhere in the United Kingdom.

Grafana Labs - Composable and open source observability platform.

What are we all about?

We are a team of builders and researchers on a mission to empower enterprises and developers worldwide to access and build on decentralized systems.

Our expertise covers several domains: Ethereum and Starknet protocol engineering, layer-2, AI, cryptography research, protocol research, decentralized finance (DeFi), security auditing, formal verification, real-time monitoring, smart contract development, and dapps and enterprise engineering.

Working to solve some of the most challenging problems in the blockchain space, we frequently collaborate with renowned companies, such as Ethereum Foundation, Starknet Foundation, Gnosis Chain, Flashbots, Forta Protocol, Lido, EigenLayer, Open Zeppelin, RISCZero, Aleph Zero, and many more.

Today, we are a 350+ strong team working remotely across 66+ countries.

The role

The Nethermind team is seeking a experience Software engineer with a background in confidential computing. We offer a unique opportunity to work on a variety of erse projects where strong experience, knowledge and understanding of secure computing platforms is a must. The candidate will be working cross-functionally across the company partnering with our product teams to implement solutions in secure environments in a broad array of applications of use cases from AI through to Finance. The role requires a balance of technical expertise, research mindset, as well as practical engineering skills to take innovative ideas into production.

How to Know If You’re the Right Fit

If you’re driven by complex challenges and excited by the prospect of working with cutting-edge technologies, this role is for you. We’re looking for iniduals who are not just engineers but innovators—those who are eager to collaborate with the best minds in the industry and make a significant impact on the future of technology.

Why This Role Is Exciting

• Work with the Best: Collaborate with some of the brightest engineers and researchers in the industry.
• Innovative Challenges: Tackle projects that require deep algorithmic thinking and advanced design.
• Impactful Work: Contribute directly to the development of technologies that push the boundaries of what’s possible.
• Collaborative Environment: Partner with leading developers and researchers shaping the future of decentralized technologies.

Responsibilities:

• Collaborating with engineers across the company on all stages of projects, through design, implementation and testing.
• Partnering with teams across the company from Product through to Engineering to apply your skills to solutions integrating confidential computing.
• Contribute to product documentation.
• Maintain, test and release new and existing confidential compute infrastructure.

Skills:

• Experienced shipping new products all the way through the product stack.
• Proficiency with developing in C++.
• Experience with Rust or JavaScript.
• Knowledge of Trusted Execution Environments (e.g. SGX, TDX, TrustZone, NVIDIA Confidential Compute).
• Familiarity with web protocols (HTTP, QUIC).
• Understanding of the CI/CD developer pipeline and tools (Github, VSCode, Linux).

Nice to have:

• Understanding of distributed consensus algorithms and cryptography concepts (e.g. Zero-Knowledge).
• You can think independently, with drive and initiative, even when challenged and under pressure.
• You can communicate complex concepts and ideas to a broad array of audiences.
• You have a strong interest in distributed systems, privacy technologies, blockchains and cryptocurrencies.

Keep up to date on what we are working on by following us on our social channels:

• Discord
• LinkedIn
• Twitter

OntheGoSystems is looking for senior developers to build products that over 250,000 happy clients use every day. We write PHP and React code and fully cover it by automated tests. We pay close attention to design, usability, performance and security. If this sounds like yourself, we want to meet.

Must have strong skills in

• Strong skills in PHP, JS,
• React and Redux experience,
• Expertise in databases,
• Proficiency in writing and applying automated tests with PHPUnit,
• Experience in writing End to End tests,
• Proficiency in version control with Git,
• Software architecture design, design patterns.

Nice-to-have skills

• CI configuration/management,
• Experience with WordPress,
• Experience with Codeception,
• Functional programming experience.

What you will do

• Build and maintain key features for WPML, ensuring they are reliable and perform well.
• Work with other teams to design and develop new features and improvements.
• Solve technical problems and make sure the code is clean, efficient, and scalable.
• Take charge of your projects from start to finish, managing your time and priorities effectively.
• Help improve our development process and suggest ways to make things more efficient.

Our expectations

• Code Quality: Write clean, well-documented code that meets company standards.
• Test Coverage: Ensure the code is covered by automated tests.
• Meaningful Logs: Provide clear, insightful logs to track system performance.
• Continuous Improvement: Learn new skills, improve processes, and contribute to team growth.

What we offer

• 100% remote position,
• Body And Mind Movement (BAMM) program to support your physical activities and other hobbies, 
• A computer budget to make your workplace better,
• A Kindle device with an access to our company Amazon account, 
• We respect national holidays in each country and want you to have a rest on those days, 
• Being a part of a team of smart, self-driven iniduals,
• Great opportunity to progress and advance,
• Collaborating with team members across the globe.

If it sounds interesting to you, apply today and we are looking forward to getting to know you better!

We are looking for a talented developer to join our team. In this role, you’ll have an opportunity to contribute to both the development and operational sides of our projects, ensuring that our systems are scalable, reliable, and efficient.

A few words about us

At OnTheGoSystems, we create innovative software powering over 1.5 million websites worldwide. Since 2008, we’ve built a fully remote team of 100+ talented specialists. In 2025, we’re launching a new cloud-based SaaS solution set to serve millions globally.

What strong skills we’re looking for in our developer

• Ruby on Rails, 
• Experience with React,
• Experience in AWS, ECS, Terraform,
• Experience with high-volume systems,
• Experience with automatic scaling and delayed jobs,
• Intensive database work,
• Writing and running automated tests,
• Proficiency in version control with Git,
• CI/CD experience – GitLab/Jenkins or another similar tool,
• Ability to debug complex code

Our ideal candidate is

• Passionate about working in a startup environment and excited by new challenges.
• Customer-Focused.
• Result-Oriented.
• Problem-Solver. 
• Accountable and Attentive to Detail.
• Proactive.
• Collaborative. 

What you will do

You’ll participate in planning, implementing, managing infrastructure, maintaining systems, and automating tests.

What we offer

• 100% remote position,
• Body And Mind Movement (BAMM) program to support your physical activities and other hobbies, 
• A computer budget to make your workplace better,
• A Kindle device with an access to our company Amazon account, 
• We respect national holidays in each country and want you to have a rest these days, 
• Being part of a team of smart, self-driven iniduals,
• Great opportunity to progress and advance,
• Collaborating with team members across the globe.

If you’re looking for an excellent opportunity to make an impact, at a company that values innovation and teamwork, apply today and join our professional team!

Android Developer | Online Gaming | Europe – Remote.

Join us at BVGroup and be part of a dynamic team that's shaping the future of online sport betting and gaming. We're dedicated to fostering a culture of innovation and excellence in the sports betting and online gaming industry and as a leading global brand, we're committed to delivering top-tier products and services to our customers.

Our Native Mobile Development teams work closely with UX, product teams, and other software engineering teams to build fully native, best-in-breed mobile betting apps for our growing portfolio of brands. We use the latest native mobile standards and technologies available to develop various sports and casino applications that customers around the globe love to use and that perform well on all devices.

We’re now looking for someone to join our Android development team. We want a collaborator who will represent Android inside of their cross functional teams throughout all stages of the software development lifecycle to develop features, improvements, and issue resolutions. This inidual will help maintain our expanding Kotlin codebase and Java legacy in aims of delivering the best native experience through a plethora of projects for an ever-growing suite of apps.

What you’ll do as an Android Developer at B**VGroup:**

• Write performant, maintainable, and scalable software.
• Evaluate feature requests and technical requirements to translate them into working software using elegant code solutions.
• Develop and review new features and improvements.
• Participate in and/or take ownership over the internal software architecture and feature development, from requirements gathering to production deployment.
• Help us shape the internal software architecture and development, from requirements gathering, to design and implementation, to production deployment. Development, operations, testing and others all work together to ship outstanding code to production.

Experience you will need for this role:

• Expertise with Android toolset and Kotlin
• Strong software fundamentals with OOP, architectural, and software design patterns
• Proficiency with Git
• Deep knowledge of the Android platform, design patterns, components, and build platform
• Familiarity with some third-party dependency managers

Desired skills that are important for success in this role:

• The ability to Identify and correct bottlenecks
• Pedanticism for code quality, structure, and organisation
• In-depth pipeline knowledge and know-how
• Capability for writing unit tests
• An aptitude for benchmarking and optimization
• Have an understanding of the creation and consumption of RESTful Web Services
• Motivated self-starter with high attention to detail and critical thinking skills
• Unyielding focus on troubleshooting and issue resolution
• Understanding of Android design principles and interface guidelines
• Exceptional communication skills with both technical and non-technical staff
• Hands-on, persistent, passionate, creative, and humble

In the event that we receive sufficient applications for the role this vacancy may be subject to early closure. Therefore, if you are interested, please submit your application as early as possible.

#LI-RF1

Peter & Sons is a game development studio formed by an international group of professionals and game enthusiasts with broad experience in mobile, play to earn casual game development and slot games. We work with world-class artists, programmers, mathematicians and musicians to produce some of the most innovative, creative, and entertaining games on the market.

Here is a unique opportunity to join a highly ambitious company with offices in Yerevan and Barcelona. Our agile development teams possess a variety of different skills, nationalities and personalities.

Responsibilities

• Design and implement software and infrastructure solutions with high quality, reliability and scalability in mind
• Write clean and easy to maintain code for backend applications in node.js using TypeScript
• Implementing REST and GraphQL APIs to connect internal microservices and external systems
• FrontEnd development in React for Back Office system and in-game promotional tools
• Integration and onboarding process for B2B customers
• IT operations including infrastructure, service management, monitoring, releases
• Define and manage the QA/QC testing process for all software and hardware releases
• Set up and maintain monitoring dashboards with system key performance indicators

Must have

• 3+ years of experience with development of backend applications with Node.js and Typescript
• 2+ years of experience with cloud (Google Cloud Platform) and infrastructure management tools (Terraform, Kubernetes, Docker)
• Experience with relational databases (Postgres)

Nice to have

• Experience with GraphQL
• Experience with in-memory databases (i.e. Redis)
• IT administration skills
• Experience with monitoring solutions such as Grafana or Stackdriver
• Experience with Big Data solutions such as BigQuery

Here is a unique opportunity to join a highly ambitious company with offices in Yerevan and Barcelona. Our agile development teams possess a variety of different skills, nationalities and personalities.

We pride ourselves on our products pushing the expectations of the industry and standing out in the crowd. You will be joining a team with a goal to push the online casino experience further into unexplored territory than ever before. As part of the team you will collaborate daily with producers, artists, mathematicians and fellow programmers, participating fully in the creative process. We have a seat waiting for you.

What you will do

At Peter & Sons, we strive to create the optimal developer experience. Since every inidual has unique needs and desires we simply stay out of the way. Choose the equipment, tools and schedule that works best for you and your team. You will play an important role in deciding how we work, but here is an idea of what your day will look like:

• Working with modern open web technologies such as HTML5, ES6+, TypeScript and WebGL
• Supporting evergreen browsers and devices only
• Assess, maintain and strive to improve the quality of code via:
  • Pull Requests
  • Creating lightweight functional-style JavaScript, TypeScript
  • Using ECS (entity component system) pattern and Cocos Creator editor (experience in Unity is a big plus)
  • Analysing and debating design patterns
• Have a say in how we do things, vote on code style guidelines, convince us that your approach is the right one
• Being involved in all processes and decision making
• Communicating over GitHub, Slack, Google Hangouts, Skype, …

Take responsibility, be proactive, don’t sit and wait to be given tasks. Instead openly promote and put forward a plan or proposal. Lead, don’t follow. Promote open, constructive dialogue and encourage

Who we are looking for

You have worked on interesting and successful game projects in JS and have stories to share of what you’ve learned along the way. You feel most at home in highly collaborative environments and are hungry to learn and share. You are open minded, honest and dependable, and take pride in what you create.

• Can create visually rich and highly performant games
• Comfortable making and communicating important architectural decisions
• Experienced in an environment where code quality is a high priority
• Experienced working with casino game platforms and interested in how they are evolving
• Experienced working across different devices in a mobile first manner
• Excited to push devices to their limits
• Have the passion to learn and stay at the cutting edge of what’s possible
• Happy to take the initiative in situations of uncertainty
• Eager to step up and take ownership of things that need to be done
• Have ideas for new, better ways to approach game development

Deel is hiring a remote Data Engineer. This is a full-time position that can be done remotely anywhere in EMEA.

Deel - Payroll and Compliance for International Teams.

Ready to be pushed beyond what you think you’re capable of?

At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system.

To achieve our mission, we’re seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the financial system. We want someone who is eager to leave their mark on the world, who relishes the pressure and privilege of working with high caliber colleagues, and who actively seeks feedback to keep leveling up. We want someone who will run towards, not away from, solving the company’s hardest problems.

Our work culture is intense and isn’t for everyone. But if you want to build the future alongside others who excel in their disciplines and expect the same from you, there’s no better place to be.

Coinbase is seeking experienced backend engineers to join our team to build out the next generation of crypto-forward products and features. You will solve unique, large scale, highly complex technical problems, bridging the constraints posed by web-scale applications and blockchain technology. You will help build the next generation of systems to make cryptocurrency accessible to everyone across the globe, operating real-time applications with high frequency, low latency updates, and managing the most secure infrastructure running in the cloud.

The Growth organization drives Coinbase’s mission of bringing the world onchain. By building and leveraging growth tools across multiple avenues, including referral and incentives programs, creating a world-class notifications system, building a dynamic, engaging, and accessible logged-out web experience, and optimizing our new user onboarding flow, we ensure that Coinbase is the easiest, safest, and fastest way to buy, hold, and trade Crypto assets, and ensure our new users are set up for success from their first interaction.

What you'll be doing:

• Build and run experiments to power the growth of Coinbase’s retail products.
• Design scalable systems to solve novel problems with modern cloud technology and industry best practices.
• Articulate a long term vision for maintaining and scaling our backend systems and the teams running them.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

What we look for in you:

• You have at least 5 years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have experience launching new products from 0 to 1

• Experience with growth experiments or A/B testing frameworks.

• You have experience with Blockchain technology (such as Bitcoin, Ethereum etc..)

• You’ve worked with Golang, Ruby, Docker, Rails, Postgres, MongoDB or DynamoDB.

• You’ve built fintech, highly reliable and/or secure systems.

• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCBE05US

*Answers to crypto-related questions may be used to evaluate your onchain experience.

#LI-Remote

Pay Transparency Notice: Depending on your work location, the target annual salary for this position can range as detailed below. Full time offers from Coinbase also include target bonus + target equity + benefits (including medical, dental, vision and 401(k)).

Pay Range:

$186,005—$218,900 USD

Please be advised that each candidate may submit a maximum of four applications within any 30-day period. We encourage you to carefully evaluate how your skills and interests align with Coinbase's roles before applying.

Commitment to Equal Opportunity

Coinbase is committed to ersity in its workforce and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Coinbase will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state and local law. For US applicants, you may view the Know Your Rights notice here. Additionally, Coinbase participates in the E-Verify programin certain locations, as required by law.

Coinbase is also committed to providing reasonable accommodations to iniduals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact us at accommodations[at]coinbase.com to let us know the nature of your request and your contact information. For quick access to screen reading technology compatible with this site click here to download a free compatible screen reader (free step by step tutorial can be found here).

Global Data Privacy Notice for Job Candidates and Applicants

Depending on your location, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required. For US applicants only, by submitting your application you are agreeing to arbitration of disputes as outlined here.

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Are you looking to be part of an early-stage venture and have proven experience in web3 content creation?

Location: Remote. Your team is based in Europe, India, and Canada.

Working Language: English

About the project

The #1 Crypto rewards platform where daily rewards meet smart investing.

Klink is a leading crypto wealth creation platform that innovatively combines quest-based task rewards with strategic investing opportunities on its multi-service platform. Klink provides a unique opportunity for its users to earn cryptocurrencies starting from $0 of personal investment and has already partnered with some of the leading companies in web3.

The company is backed by top-tier VCs in the US & Asia.

Tasks

We are now looking for an ambitious Fullstack Engineer to join the team. You will be joining a team of 20 (12 with technical background) with a live product with over 400,000 users already. As you work on building an innovative solution competing with products on a global scale, you will always be up to date on all the latest technologies and best practices, especially regarding the web3 space.

You will:

• Collaborate on the development of highly scalable Node.js products hosted on cloud-based infrastructure, facilitating access to DeFi opportunities for CeFi users.
• Construct and maintain internal and external RESTful APIs, ensuring swift and seamless updates to our products.
• Develop erse platforms, optimizing for high throughput and faultlessness in execution.
• Integrate external providers from the FinTech and Blockchain industry to enhance our product offerings.
• Engage in regular communication with the technical lead and the entire team to discuss solutions and innovations.
• Actively participate in code reviews to uphold code quality, maintainability, and adherence to best practices.

Requirements

We do not focus on the time you have spent sitting in the lecture halls of this world but we want to understand what makes you feel comfortable, extraordinarily motivated and suitable to take over this position. We are looking for a team member who feels comfortable working remotely and in English in an international environment with a self-driven “Get stuff done” mindset.

• Experience in serverless architecture and microservices.
• Proven understanding of Blockchain and Web3 solutions.
• Proficiency in Javascript frameworks, with a focus on Typescript (Nest.js, Next.js, Node.js).
• Strong MVP-focused coding skills in any modern programming language.
• Solid understanding of cloud solutions, specifically Amazon Web Services (AWS).
• Good knowledge of data structures, algorithms, and relational databases.
• Familiarity with security best practices in cloud environments.
• Full-stack development experience with a strong proficiency in React.js, Next.js, and NestJS. Expertise in building dynamic, scalable, and high-performance web applications, ensuring seamless integration between front-end and back-end technologies for optimized user experiences and efficient server-side rendering.

Benefits

• Join at an early stage and be involved in decisions that shape the company’s future and the opportunity to build your own success story
• You will have a lot of autonomy and freedom in your role to innovate, test and fail
• Take a trip with an international team of highly skilled iniduals who will always support you on this journey

If you want to know more about this opportunity please complete this application with your most recent work profile and we will get back to you ASAP.

We are excited to meet you!

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This is a contract position for those based in Brazil.

The Role

NearForm is seeking a highly skilled and experienced Senior Blockchain Developer to join our team of consultants. In this role, you will work directly with clients on erse and impactful projects, leveraging your deep understanding of software engineering and Web3 / Blockchain. If you have a passion for building innovative applications and a track record of delivering complex solutions in a client-facing environment, we want to hear from you.

What you will do:

• Design & build Blockchain systems and integrations using Golang;
• Support system design, development, and maintenance and taking responsibility for personal technical quality standards within the project team;
• Assist with defining structured practices, especially in source code management, building, and deployment;
• Design and implement data storage solutions;
• Optimize performance in applications for maximum speed and scalability;
• Get feedback from users and clients, and build solutions for them;
• Assist with the analysis of client requirements;
• Work with and support Technical Leaders in project execution and timely delivery;
• Collaborate with internal and client teams.

What we are looking for:

• Proficient communication in English (oral and written) and excellent communication skills;
• 5+ years of professional experience in software engineering in an high-quality agile environment;
• 2+ years of professional experience with Blockchain (managing wallets, signings, submitting transactions, swapping services, smart contracts, etc);
• Deep understanding of server-side code, with extensive experience developing in Golang;
• Deep understanding of Web3 and Blockchain;
• Experience with Blockchain technologies such as Solana (ideally) or Cardano Ethereum, Avalanche, and BNB;
• Experience with Finance and Decentralised finance (DeFi).

Benefits

• Work remotely; we have a genuine dedication to work/life balance.
• Work flexibly; we appreciate there are more important things in life than work so our flexible working culture allows you to work around what matters - school run, no problem!
• The Wellness Hub: We have a genuine commitment to fostering/improving NearFormers’ wellbeing; we offer resources and support, including a NearForm advice line which offers confidential support for anything from relationship issues to staying healthy.

Please get in touch to discuss remuneration.

About Us

Nearform is a digital and AI engineering consultancy with a reputation for experience-led modernization. We focus on creating transformative digital products for enterprise customers across US, Canada, UK, and Ireland. Our approach blends deep technical expertise with modern, cloud-native solutions to help clients overcome legacy constraints and unlock new business value. We are on a growth journey, with ambitions to scale rapidly while broadening our service offering with AI solutions and Modern Managed Services.

Being a global company with a remote workforce allows us to hire without borders. We only hire the best of the best, we continuously learn and improve and our distributed workforce means we service clients across the globe.

Application Process

1. A Video Interview with someone from the recruitment team (30 mins approx.) to introduce to you Nearform and the role, and to make sure your experience is relevant for the position.

Inclusion

Inclusion is one of our core values. We don’t discriminate by race, religion, national origin, gender identity, sexual orientation, age, marital status, veteran status, or disability status.

All persons hired will be required to verify identity and eligibility to work in the country where employed. We are not offering working visa sponsorship at this time.

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