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.

Why This Role Matters

You’ll be our first engineering manager. You’ll lead a world-class team of engineers across multiple product lines and be the technical backbone and organizational glue that helps us scale while maintaining our fast-paced, high-impact culture.

What You’ll Do

• Lead a team of backend and systems engineers.
• Set a high technical bar: Lead design reviews, challenge assumptions, and guide architecture of distributed systems, low-latency services, and high-throughput APIs.
• Hire and grow the team: Own hiring end-to-end for your team with support from founders and recruiting.
• Work closely with founders to scale the company’s engineering culture, processes, and infrastructure.
• Execute fast in a demanding environment: Tradeoffs, uncertainty, pressure—we embrace it all.
• Drive impact on real crypto infrastructure used daily by top Solana teams and protocols.
• Split your time:
  • 60% engineering management (planning/execution, hiring, team health)
  • 25% technical leadership (system design, mentorship)
  • 15% coding (unblocking critical paths)

You’ll Thrive Here If You…

• Bring 1–2+ years of engineering management (startup or high-growth org) and know when to coach vs. e in.
• Possess 5+ years of backend / systems engineering (Rust, Go, C++, or similar) and can still jump into code for a well-scoped fix or prototype.
• Have shipped and operated distributed, performance-sensitive systems (queues, caches, databases, pub/sub, low-latency services).
• Are comfortable hiring, coaching, and occasionally parting ways to keep the bar high.
• Communicate crisp trade-offs under pressure and keep teams laser-focused on outcomes.
• Care deeply about developer experience and impacting the Solana & crypto ecosystem.
• Are excited to shape Solana and broader web3 infra alongside an ambitious team.

Nice-to-Haves

• Production Rust expertise.
• Prior work on infra, DeFi, exchanges, or other high-throughput environments.
• Familiarity with Solana internals or web3 developer tooling.

What We Offer

• Competitive comp and equity.
• Fully remote + flexible work (core overlap with Americas time zones).
• Tight-knit, ambitious team with low ego and high ownership.
• A rare chance to shape the future of crypto.

We believe great managers amplify engineers. If you get energy from removing blockers, growing people, and occasionally rolling up your sleeves to unblock a launch or patch a critical bug, let’s talk.

Compensation Range: $250K - $300K

Logos tech stack, 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.

As a p2p messaging protocol, born from the original Web3 vision, Waku is a decentralized, censorship-resistant, privacy-preserving communication network that enables anyone to message, interact, collaborate, co-ordinate without worrying about surveillance or deplatforming.

We are a cypherpunk group, looking for other builders to join a principle-first organisation and build truly decentralised software.

More about us:

• https://waku.org/
• https://github.com/waku-org/
• https://discord.waku.org/
• https://forum.vac.dev/
• Logos Manifesto

Responsibilities:

• Implement open protocols for peer-to-peer secure messaging.
• Create and maintain a sustainable and fault-tolerant distributed system.
• Write and maintain Nim code (nwaku codebase).
• Understand and optimise the core functionality of complex software systems.
• Provide feedback on overall design decisions, and participate in code reviews.
• Use libp2p to build infrastructure-level protocols.
• Support platforms and operators using nwaku software.
• Maintain Golang, Rust and other language SDKs built on top of FFI bindings.

Ideally, you have

• A passion for privacy-preserving, decentralised and blockchain technology.
• At least 4 years of software engineering experience, with low-level/strongly typed languages (C/C++/Go/Rust).
• Experience building networking-heavy applications and p2p networking specifically.
• Familiarity with message propagation in loosely connected networks.
• Familiar with p2p building blocks such as gossiping, routing and discovery (DHTs), and Nat traversal.

Bonus points if you have experience in:

• Embedded systems development experience.
• Contributed to a blockchain-related, open-source project.
• Experience with Valgrind, or gdb, or gprof or perf.
• Experience with off-the-shelf networking stacks such as libp2p.

Compensation:

We are happy to pay in a mix of fiat and/or crypto. For more information regarding contributing to IFT: https://contributors.free.technology/

Hiring process:

1. Introduction call with People Ops team
2. Pair programming session with nwaku team member
3. Technical & Culture Interview with nwaku team lead
4. Interview with Waku 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.

Mercury is hiring a remote Senior Software Engineer - Treasury. This is a full-time position that can be done remotely anywhere in Canada or the United States.

Mercury - Banking built for startups.

DuckDuckGo is hiring a remote Senior Android Engineer. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

DuckDuckGo - Smarter search without the tracking.

Aztec is looking to hire a Software Engineer (Generalist) to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

Parity Technologies is looking to hire a Developer Experience (DevEx) Manager to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

About Us

Join a team of brilliant minds and hardcore engineers dedicated to solving some of the most challenging problems in software engineering today. We offer a unique opportunity to work on algorithmically intensive, design-heavy projects that are novel and groundbreaking. If you’re an excellent problem solver motivated by tackling complex challenges, and you thrive on innovation and collaboration, we’d love to have you on board.

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

Algorithm and System Design:

• Develop and implement efficient algorithms and complex data structures.
• Design scalable, high-performance systems and components.
• Innovate solutions for new and novel technical challenges.

Software Development:

• Build and enhance high-throughput, low-latency systems.
• Implement advanced networking layers and protocols.
• Optimize software for performance, scalability, and reliability.

Collaboration and Leadership:

• Work closely with industry-leading developers and researchers.
• Participate in code reviews, architecture discussions, and collaborative problem-solving sessions.
• Mentor and guide junior engineers within the team.

Research and Innovation:

• Stay abreast of emerging technologies and industry trends.
• Contribute to research initiatives and publish findings where applicable.
• Experiment with new tools and technologies to push the boundaries of what’s possible.

Skills and Qualifications

Technical Expertise:

• Exceptional problem-solving skills with a passion for tackling complex, algorithmic challenges.
• Strong experience in software development.
• Familiarity with Rust, GO or C# is a plus but not mandatory.
• Deep understanding of software architecture, design patterns, and system design principles.
• Experience with distributed systems, networking, or low-level programming is advantageous.

Personal Attributes:

• Entrepreneurial mindset with a drive to innovate and take ownership of projects.
• Ability to work independently in a fast-paced, dynamic environment.
• Excellent communication and teamwork skills.

Experience:

• Several years of professional experience in software engineering.
• Proven track record of solving complex technical problems and delivering high-quality solutions.

Opportunities

Collaborate with Leading Organizations:

• Work alongside the best developers and organizations in the industry (Ethereum Foundation, Starknet, Gnosis, and many others).

Innovate in a Non-Boring Environment:

• Dive into projects that are new and novel—not your typical enterprise tasks.
• Be at the forefront of technological innovation in the industry.

Examples of Projects You Might Work On

• Designing and implementing new consensus algorithms.
• Optimizing virtual machines or compilers for better performance.
• Implementing advanced P2P networking protocols for high-performance distributed systems.
• Developing efficient data structures for state representation in distributed systems.
• Contributing to open-source projects and publishing innovative research.
• Developing SDKs for the best DevEx in the industry.

Perks and Benefits

• Professional Growth: Continuous learning opportunities and the chance to work with industry leaders.
• Fully Remote: Work from anywhere in the world.
• Flexible Working Hours: Manage your own schedule to balance work and life effectively.
• Competitive Compensation: Attractive salary plus equity options.

Why This Role Matters

We are currently seeking an experienced and visionary Platform Engineering Manager to lead our Core Platform Services team. The ideal candidate will have a strong background in people management and engineering leadership, with the ability to drive strategic initiatives while fostering team growth and collaboration within a technical environment.

Your commitment to developing high-performing engineering teams, managing cross-functional relationships, and building scalable organizational processes will be crucial in this role. Additionally, your alignment with Nethermind’s vision of leading in blockchain technology and promoting innovation within our infrastructure organization is essential.

What You’ll Do

• Lead and manage a team of 8+ senior and mid-level engineers working on core platform services, providing mentorship, career development, and conducting regular 1-on-1 meetings to ensure team success and growth.
• Partner with Platform Architect and technical leads to guide the strategic direction of platform solutions, ensuring team alignment and resource allocation for successful delivery.
• Oversee security initiatives and access management strategies across teams, coordinating with cross-functional stakeholders to maintain organizational security standards.
• Manage tools inventory and platform services budget allocation, making strategic decisions on technology investments and resource optimization.
• Foster collaboration with other infrastructure teams including Blockchain Service Development/Deployment and Internal DevOps Support teams, ensuring alignment on delivery timelines and organizational goals.
• Establish and maintain engineering best practices, team processes, and operational excellence across the core platform services organization.

Day-to-Day Activities

• Leading team meetings and facilitating technical discussions
• Conducting 1-on-1 meetings with direct reports and career development planning
• Collaborating with other engineering managers on organizational strategy
• Managing vendor relationships and budget allocation
• Working with cross-functional teams on project coordination and delivery
• Ensuring team processes and operational standards are maintained
• Supporting team members with escalations and organizational needs

What We’re Looking For

Must Have

• 5+ years of experience in engineering roles with 3+ years in engineering management or team leadership
• Strong track record of managing and developing engineering teams, including performance management, career development, and technical mentorship
• Experience working in technical environments with understanding of infrastructure, platform engineering, or DevOps concepts
• Excellent communication and stakeholder management skills with ability to work across multiple teams and departments
• Experience with budget management, resource planning, and vendor/tools evaluation
• Strong organizational and process management capabilities
• Ability to translate technical concepts for non-technical stakeholders and vice versa
• Knowledge of FinOps practices and cloud cost optimization

Nice to have:

• Hands-on experience with Kubernetes platform engineering, container orchestration, and cloud-native architectures
• Experience with security frameworks, access management systems, and implementing security best practices
• Experience with cloud platforms (AWS/GCP), Infrastructure as Code (Terraform), and DevOps practices
• Understanding of CI/CD pipelines, monitoring, and observability platforms
• Blockchain or cryptocurrency industry experience
• Experience with on-premises infrastructure management
• Previous experience managing DevOps Principal Architects or senior technical leads

What We Offer

• Flexible Work Options: Remote-first culture with the opportunity to work from anywhere.
• Global and Diverse Workforce: You’ll work with people from various backgrounds and cultures.
• Learning and Development: You’ll work on innovative, challenging projects and have access to experts and mentors to enhance your skills.
• Career Growth: Access to training, mentorship, and opportunities to contribute to open-source initiatives.
• Global Events and Conferences: Opportunities to attend the industry events.
• Collaborative and Innovative Culture: We foster teamwork and encourage new ideas.
• Unlimited Time Off: Enjoy the freedom to structure your working hours in a way that suits you best, with the flexibility to take unpaid time off whenever needed to maintain a healthy work-life balance.
• Equity participation allowing you to benefit directly from the company’s success.

Our Commitment to Diversity

At Nethermind, we celebrate ersity and are committed to creating an inclusive environment for all team members. We believe a variety of perspectives drives innovation and leads to better solutions for the blockchain community.

Ready to Join Us?

If you’re passionate about blockchain and eager to make an impact, we’d love to hear from you. Click Apply for this job to start your journey with Nethermind.

Building the Future of Blockchain & AI in Asia-Pacific

About the Opportunity

Nethermind is seeking an experienced technical leader to drive our product innovation and engineering excellence across Asia-Pacific. Reporting to the APAC Regional Managing Director (RMD), you’ll lead the technical execution of our regional strategy while building world-class products that bridge blockchain and AI technologies for enterprise clients.

This is a senior technical leadership role where you’ll have significant autonomy over product and engineering decisions while working closely with regional leadership to achieve our ambitious growth targets. You’ll have the autonomy of a founder with the backing of a global blockchain leader, shaping the future of enterprise blockchain and AI solutions across the world’s most dynamic markets.

Your Mission

Transform Nethermind’s APAC presence from a promising footprint into a revenue-generating powerhouse by building world-class products that bridge blockchain and AI technologies for enterprise clients across the region.

Key Responsibilities:

Technical Product Leadership

• Define and execute the technical product roadmap aligned with APAC business strategy
• Lead product development lifecycle from ideation to launch for 1 flagship product
• Make technical decisions on architecture, tech stack, and feature prioritization
• Work with the Regional Managing Director to ensure products meet market requirements
• Create technical IP in blockchain/AI convergence

Engineering Excellence & Team Building

• Assemble and/or Build and lead a team of engineers and product managers across APAC
• Manage engineering hiring, performance, and retention in collaboration with regional leadership
• Define engineering standards, development methodologies, and quality benchmarks
• Manage technical budget allocation within approved R&D budget

Technical Strategy & Innovation

• Provide technical expertise to support the Regional Managing Director’s business development efforts
• Lead technical due diligence for partnerships identified by regional leadership
• Define APAC-specific technical requirements based on regional needs
• Drive innovation in areas unique to APAC markets
• Own technical documentation and developer education initiatives

Supporting Business Development

• Serve as senior technical resource for customer meetings arranged by the RMD
• Conduct technical deep-es and proof-of-concepts for enterprise prospects
• Partner with sales team to articulate technical value propositions
• Ensure successful technical implementation for customers acquired by business team
• Provide technical input for pricing and commercial discussions when requested

Technical Ecosystem Development

• Represent Nethermind at technical conferences and developer forums
• Build relationships with technical leaders at partner organizations
• Lead technical partnerships with educational and enterprise research institutions
• Manage developer community engagement and open-source contributions
• Support the RMD in building Nethermind’s technical reputation in APAC

What You Bring:

Essential Experience

• 8+ years in technical product management and/or engineering leadership roles
• 5+ years working in APAC markets with understanding of regional technical requirements
• Proven track record of shipping enterprise products and scaling engineering teams
• Experience building and leading distributed teams of 20+ engineers
• Deep technical expertise in distributed systems, with blockchain experience preferred
• Track record of supporting business growth through technical excellence

Technical Expertise

• Strong foundation in distributed systems, cryptography, and consensus mechanisms
• Understanding of blockchain architecture, smart contracts, and DeFi protocols
• Familiarity with AI/ML systems and their intersection with blockchain
• Ability to architect systems for enterprise-grade reliability and scale
• Experience with cloud infrastructure and modern engineering practices

Leadership Qualities

• Collaborative approach to working with business leadership
• Strong technical communication skills for both internal teams and external stakeholders
• Ability to balance technical excellence with business priorities
• Cultural awareness to effectively manage teams across erse APAC markets
• Commitment to Nethermind’s mission and values

Reporting Structure

• Reports to: APAC Regional Managing Director
• Dotted Line: Global CEO (Prev. Co-CTO) - Daniel Celeda
• Direct Reports: APAC Engineering Managers, Product Managers, Technical Leads (Team to be assembled and/or built)
• Key Internal Stakeholders: Business Group Managers, Engineering, Global Product, Business Development

Working with the Regional Managing Director

As a key member of the APAC leadership team reporting to the Regional Managing Director, you will:

• Execute Technical Vision: Implement the technical components of the regional strategy
• Enable Business Growth: Provide technical expertise to support business development
• Manage Technical Operations: Own day-to-day engineering and product decisions within strategic framework
• Advise on Technical Matters: Serve as the RMD’s technical advisor for strategic decisions
• Represent Technical Excellence: Be the senior technical voice in customer and partner meetings

The RMD sets the overall regional strategy and business targets, while you ensure technical execution excellence and product delivery to meet those objectives.

Compensation Philosophy

We offer an entrepreneurial compensation package that aligns your success with Nethermind’s growth in APAC. While our base salary is competitive, the real opportunity lies in building significant wealth through equity participation and performance-based incentives. We’re looking for leaders who see beyond immediate compensation to the massive value creation opportunity in building APAC’s blockchain infrastructure.

Location & Travel

• Base: Singapore preferred (flexible for exceptional candidates in Hong Kong, Tokyo, Seoul)
• Travel: 30-40% across APAC region
• Work Style: Remote-first

Why Nethermind?

• Mission: Building a safe, borderless world with Blockchain and AI
• Technology: Work with cutting-edge blockchain and AI technologies
• Team: Collaborate with world-class engineers from top companies
• Impact: Shape how enterprises across APAC adopt blockchain technology
• Growth: Join at the inflection point of massive regional expansion

Our Commitment to Diversity

At Nethermind, we celebrate ersity and are committed to creating an inclusive environment for all team members. We believe a variety of perspectives drives innovation and leads to better solutions for the blockchain community.

Ready to Join Us?

If you’re passionate about blockchain and eager to make an impact, we’d love to hear from you. Click Apply for this job to start your journey with Nethermind.

About CryptoEconLab

CryptoEconLab (CEL) designs next-generation crypto protocols—from initial design to governance and ecosystem growth. Our work spans token design, incentive engineering, market construction, and cutting-edge simulations.

The Role

We need a Research Scientist who can architect protocols from the ground up using first principles. You’ll synthesize project visions, design new token economies, mitigate adverse incentives, and guide projects from ideation to whitepaper to real-world deployment. You’ll also work directly with clients to communicate and refine protocol designs throughout the development process.

Key Responsibilities

• Protocol Design: Invent token economies and emission mechanisms that align with project KPIs and guard against economic exploits, particularly in DeFi, DePIN, and public goods ecosystems.
• Adverse Incentive Mitigation: Identify collusion, sybil, or other attack vectors and propose robust defenses.
• Market & Auction Construction: Develop pricing, bidding, and matching systems that foster efficient discovery and fair participation.
• Simulation & Digital Twin: Model agent-based behaviors, forecast circulating supply, and inform governance decisions with data-driven insights.
• Practical Implementation: Work closely with engineers to ensure that theoretical designs translate into functioning smart contracts and mainnet-ready architectures.
• Research Leadership: Supervise junior research scientists, providing guidance on methodologies, deliverables, and professional growth. Maintain a strong research reputation and following (e.g., publications, conference speaking engagements) and represent CEL as an industry-leading cryptoeconomic research hub.

Qualifications

• PhD or equivalent experience in Computer Science, Statistics, Applied Mathematics, Physics, Computational Chemistry, or other strongly quantitative fields.
• Track record of creating, deploying or operating new protocols or mechanisms in the crypto space.
• Knowledge of game theory, distributed systems, and cryptoeconomic principles, or ability to quickly learn these areas.
• Strong practical software engineering skills.
• Creative and analytical mind with a proactive mindset.
• Exceptionally clear written and verbal communication, with demonstrated ability to communicate complex designs succinctly to both technical and non-technical audiences.
• High energy and motivation for a fast-paced startup environment.

Why Join Us

• High-Impact Work: Shape groundbreaking protocols from scratch.
• Collaborative Environment: Join a team of leading experts in cryptoeconomics and decentralized governance.
• Competitive Compensation: $100-140k USD/year + benefits.
• Flexible, Remote-First Culture: Work with a global network of top talent across US, Europe and Asia.

Coursera is hiring a remote AI Specialist. This is a full-time position that can be done remotely anywhere in India.

Coursera - We provide universal access to the world's best education.

Webflow is hiring a remote Support Engineer, Tier 3 (Webflow Cloud). This is a full-time position that can be done remotely anywhere in the United States.

Webflow - Responsive web design tool, CMS, and hosting platform.

lobstr.io is a no-code scraping SaaS used by 25,000+ active users every month. We allow non-technical users to extract and automate structured data from complex websites.

🦞

We’re looking for a full-time backend developer to join our core team and help us build, maintain, and scale our scraping infrastructure.

You’ll work closely with the founder and the product team (2 frontend devs, 1 designer, 1 content writer). This role is remote-first, async-friendly, and has a low-meeting culture.

Your mission

• Build and maintain Python scrapers
• Maintain and scale our asynchronous job pipeline (Celery + Redis)
• Improve internal tools and admin panels
• Solve scraping challenges: detection evasion, speed, modularity

Stack

• Python, Django, PostgreSQL
• Celery / Redis
• GitLab, Notion, Trello, Slack
• Remote Linux servers, VSCode, Sentry

Why join us

• 150% YoY growth ⚠️
• Public scraper roadmap (goal: +4/month)
• Profit-sharing on monthly MRR growth
• Real impact on architecture and product
• Full remote with paid time off (1 day/month)

Work culture

• 1 short dev sync per week
• 1 monthly all-hands
• You manage your schedule — we care about delivery, not hours

Trial and salary

• 3-month trial: $2,000/month
• Then: $2,500/month + MRR growth sharing (20%)
• Contract: freelance / contractor via Deel
• Possible long-term contract or CTO-track if the fit is right

Salary and compensation

Benefits

🌎 Distributed team

⏰ Async

🏖 Paid time off

💰 Profit sharing

👀 No monitoring system

🚫 No politics at work

Elevate Labs is hiring a remote Senior Backend Engineer. This is a full-time position that can be done remotely anywhere in North America or South America.

Elevate Labs - Discover your mind's limitless potential.

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Articulate - The #1 creator platform for workplace learning.

GitHub is hiring a remote Staff Software Engineer. This is a full-time position that can be done remotely anywhere in the United States.

GitHub - The world's leading software development platform.

Messari is looking to hire a QA Automation Engineer (Contractor) to join their team. This is a contract position that can be done remotely anywhere in the United States.

GitLab is hiring a remote Senior Data Analyst. This is a full-time position that can be done remotely anywhere in the United States.

GitLab - A single application for the entire DevOps lifecycle.

About the role

Join the integrations team as a software engineer on the CoinLedger platform which currently processes hundreds of millions of transactions every year spread out across 300+ centralized exchange integrations. Supporting such a significant number of integrations is a large undertaking and will require working with large amounts of data and external APIs in order to maintain the quality ours users expect.

Your responsibility will involve collaborating with a team of 3-4 other software engineers to build brand-new integrations for the CoinLedger platform, improve the functionality of our existing integrations, and help the team operate more efficiently.

As your grow in the role and gain more experience, you will have the opportunity to work on some of the high-impact projects related to the import experience. In the near term, we have some of the following projects planned:

• Improving import infrastructure to enable real-time transaction syncing from crypto exchanges
• Building robust monitoring systems to react to breaking changes from crypto exchanges
• Building new workflows for enabling realtime balances to be fetched from crypto exchanges to assist users with reconciling their transaction history

This will be an extremely high impact, challenging role in a fast paced environment. However, you will have the opportunity to shape the direction and deliver high-impact changes within CoinLedger from the ground up.

We hope you are up for the challenge.

About you

• You are a crypto enthusiast and invest in crypto yourself
• You have a strong understanding of major centralized players in the crypto market and can prioritize accordingly in your integration work
• You have a passion for working with data: APIs, csv files, and excel spreadsheets should be very familiar to you
• You aren’t afraid of ing heads first into poorly documented APIs for crypto exchanges
• You have 1-3 years experience as a software engineer working on backend systems
• You have worked professionally on a C# / .NET codebase
• You are able to strike the balance between speed of delivery with quality of development
• You are comfortable working closely with members of our support team in order to help resolve issues and improve the import experience
• You have experience working with engineers at different levels and have coached them in their career development.

In the first month, you will:

• Work closely with the team lead to get onboarded into the CoinLedger engineering org
• Deliver multiple improvements and bug fixes to our existing integrations
• Build a new file-based integration for processing transaction history on a CSV/Excel file
• Identify and document areas of improvement in our existing processes.

Within the first 3 months, you will:

• Build and launch a new API-based integration with a crypto exchange
• Have shipped multiple high-impact improvements to our importers
• Become a pivotal player in the core integrations team.

What success looks like:

• You are diligent in your day to day work when processing transaction history for our users
• You are able to be self-accountable in a remote-work environment
• You are a self-starter and are able to jump into technical problems when they come-up
• You push the pace to improve
  • Development velocity of new integration launches
  • Time to recovery when integrations break
  • Development velocity on new features
• You help identify problem areas in our current process and implement improvements which will:
  • Make the import experience better for our customers
  • Make the development & debugging process better for the whole integrations team

"

Description

We’re looking for a Senior Full-Stack Ruby on Rails Engineer to lead development of our analytics dashboard. You’ll design, build, and maintain Rails APIs, background jobs, and database schemas that power data-rich React components and interfaces. You’ll work closely with product managers, designers, front-end developers, and infrastructure to rapidly push new features from ideation to production.

This is a hands-on role with plenty of scope to influence architecture, user experience, and coding standards. While we’re targeting senior engineers, we’re open to strong mid-level candidates who demonstrate leadership, ownership, and a passion for full-stack craftsmanship.

Team, Culture, and Product

We're a small engineering team looking to grow. We're a remote-only organization with most of the engineering team working from US timezones. We aim to help mobile app developers make data-driven decisions about their marketing in a secure, privacy-centric, user-friendly way. We encourage flexibility in working locations and hours but also make sure we all overlap at least briefly for a bit each day.

Responsibilities

* Lead major architecture and software design decisions

Requirements

* Deep expertise in Ruby on Rails (typically 5+ years)

Nice-to-haves

* Experience with AWS, Kubernetes, and Docker

Benefits

* Annual budget for learning and personal development (conferences, books, classes, etc)

",

Stripe is hiring a remote Staff Data Analyst. This is a full-time position that can be done remotely anywhere in Canada.

Stripe - Online payment processing for internet businesses.

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Nava - Working with government agencies to improve their digital services.

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Stitch Fix - Your online personal stylist.

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 Status Network

Status Network - the first natively gasless Ethereum L2 - is hiring a bilingual Developer Relations & Community Manager to lead our presence in South Korea.

Status Network’s roadmap includes deep integrations with Korean studios, gamers, and social apps builders. You will be the bridge between Status Network and the Korean builder community. This role is a unique blend of local developer community building, content creation, technical education, and strategic partnership management. The ideal candidate is a builder at heart, deeply embedded in Korea’s crypto scene, and driven by the mission to make developers discover a new way to build onchain - without gas.

Key responsibilities

• Launch, manage & moderate Korean-language channels (Telegram, Discord, KakaoTalk, Naver, Youtube, etc.)
• Design daily/weekly engagement loops; track sentiment & surface insights
• Produce Korean-first technical documentation, tutorials, code samples, blog posts, memes and “how-to” videos to make building on Status L2 intuitive and fun
• Run webinars, IRL meet-ups, hackathon tracks, and university workshops; report measurable impact (attendance, submissions, conversions)
• Onboard builders to Status L2; provide code samples and live demos
• Mentor power users and builders and KOLs; identify and amplify success stories
• Cultivate relationships with Korean web3 studios, infra providers, K-media, and event organisers
• Localise global campaigns (airdrops, quests, dev-grants) to maximise Korean participation
• Own community analytics (growth, retention, funnel KPIs) in GA / Dune / Notion
• Channel product pain-points and market trends back to engineering and leadership

You will ideally have

• Native-level Korean & professional English (written + spoken)
• 2+ yrs DevRel, developer education, or technical community building
• Hands-on coder - comfortable reading / shipping Solidity, TS or Rust and demoing live. Strong grasp of blockchain fundamentals, especially Layer 2 architectures.
• Ability to create content - we welcome all format but video will be prioritized
• Strong documentation and blog posts writing skills - able to review and suggest changes on existing documents
• Track record running ≥ 5 AMAs, hackathons, or workshops with published metrics
• Data-driven mindset; can design experiments and report RO
• Belief in open-source, self-custody, and cypherpunk ethos
• Experience in, and passion for, blockchain technology

Bonus points

• Proficiency in another Asian language
• Prior work at a rollup, DeFi, GameFi, or crypto infra project
• Existing network across builder communities at universities, Kakao, meetups, and indie hacker spaces
• Have an active YouTube or TikTok channel
• Have experience writing announcements, whitepapers, and legal-compliant materials for Korean audiences
• Public-speaking experience at conferences or YT/Twitch streams
• Familiarity with Ethereum L2s, RLN, zkEVMs, or onchain gaming UX
• Comfortable working remotely and asynchronously
• Experience working for an open source organisation.

[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

• Interview with our People Ops team
• Community and ecosystem interview
• Technical interview and test
• Interview with the Status Network team lead

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.

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

Pulumi - Modern infrastructure as code.

vidIQ is hiring a remote Associate Product Engineer. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

vidIQ - Chrome extension for YouTube video creators.

Parity Technologies is looking to hire a Senior DevSecOps Engineer to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

Sahara AI is looking to hire an AI DevRel Engineer to join their team. This is a full-time position that can be done remotely anywhere in the United States or on-site in San Francisco CA.

RevenueCat is hiring a remote Senior Backend Engineer, Web. This is a full-time position that can be done remotely anywhere in Americas or EMEA.

RevenueCat - The better way to build and manage subscription apps.

Zero Hash is looking to hire a Technical Project Manager to join their team. This is a full-time position that is remote or can be based in Melbourne.

At LaunchBrightly, we are on a mission to automate a process that continually captures and enhances screenshots of all your SaaS product features. The continuous integration and continuous deployment (CI/CD) pipeline and process that engineers adopted over the last decade, is what we ultimately want to build for customer support teams. TLDR; LaunchBrightly = Github Actions/Circle CI for customer support. And we are currently looking to bring onboard a strong Application Engineer. 

Everyone at LaunchBrightly is a creator, an owner, or perhaps better, a celebration of the crazy ones. The misfits. The rebels. Most big companies are afraid of entrusting the future of the company and their software to a few makers, and as they defend against that, they end up with three layers of managers and a product designed by a committee. We want the opposite. We need the opposite as we enter virgin territory trying to build that CI/CD pipeline and process for the support organization. As our customer pushes a new feature to production, we automatically update all product images within the help center. This is a thrilling adventure!

Our work is remote, not distant. We believe that being a remote-first organization allows us to build an exceptional team composed of makers and sellers with erse backgrounds and skill sets from around the globe. Our default work culture is asynchronous and emphasizes written communication to prioritize maker time, focus and company productivity. Our goal is not to eliminate face-to-face interaction, but we should default to a setting where written documentation is so strong that a meeting on most project subject matters would seem odd.  

Founded in 2022, and backed by prominent venture firms including IA Ventures, Tuesday Capital, and B Capital Group, this is a unique opportunity to join this band of misfits on the ground floor. As an early teammate you will be working intimately with the founding team, who has done 0 to 1 five times over while seeing four of them come to an exit.

The Application Engineer will become an integral member of an intimate 9-person team consisting of:

• Maker #7 (Application Engineer, You!)

• Maker #6 (Melissa, Implementation Specialist)

• Maker #5 (Michel, Frontend Engineer)

• Maker #4 (Lucas, Frontend Engineer)

• Maker #3 (Jose, Fullstack Engineer)

• Maker #2 (Hyder, Backend Engineer)

• Maker #1 (Dennis, Founder)

• Seller #1 (Josh, Co-founder)

• Helper #1 (Vibeke)

However, we are looking not just for an Engineer but, rather, a teammate we see as integral to LaunchBrightly’s long-term journey and vital to our success. Someone who is comfortable in the dark and who sees a certain romance, like we do, in embracing the unknowns that come with being on the startup journey. We have a track record of seeing those colleagues who join us on the ground floor of our ventures ride the startup journey to completion (exit) with us, as we grow and become successful together. This is something we take seriously, and something we are extremely proud of! 

Job Description

You'll work with Jose (and the remainder of the team) on the logic layer that powers our product: workflows, task runners, state machines, rules engines, and orchestration. You'll work in Typescript directly in the Vue App, and often in JS in AWS Lambda’s, tune our data models, and shape how primary product features like Audits function behind the scenes. You're not building APIs or UI — you're building the actual product behavior. Think of yourself as a Product Logic & State Orchestration Engineer. 

This is a hands-on role for an engineer who loves building reliable systems that model real-world processes. You’ll work on the internal state machines that govern how screenshots flow through the system, are transformed, enhanced, and delivered. You’ll define rules engines that let non-technical users control automated behavior, manage task orchestration across Lambda and queues, and shape our schema design to handle complex edge cases with clarity and performance in mind.

You’ll thrive in this role if you think deeply about how complex systems behave over time, have strong opinions on data modeling and event-driven workflows, and enjoy writing deterministic, testable, observable logic. If you care more about product behavior than presentation, and love turning business intent into robust execution — this is for you!

We are looking for previous experience working with

• Building production-grade B2B web apps, including everything that comes with robust, scalable software: business logic, testing, observability, and performance.

• Writing TypeScript in a modern frontend architecture (Vue 3 SPA) and JavaScript in AWS Lambda functions.

• Working deeply to create meaningful and maintainable test coverage across core business logic (e.g. Vitest).

• Designing and modeling robust data schemas for DynamoDB and GraphQL queries, with a strong intuition for how data shapes product behavior.

• Consuming and reviewing internal APIs using Postman, and contributing clear, actionable feedback to improve them.

• Implementing Serverless architecture with AWS Amplify, including event-driven flows and task orchestration.

• Having a good functional understanding of UI-layer concerns (HTML, DOM, TailwindCSS, HeadlessUI), but focusing your energy on what happens beneath the surface — the orchestration, rules, and workflows that make the app tick.

What you bring to the table

• Minimum of 3 years of industry experience

• A customer-first mentality, with an instinct to imagine how users will react and interact

• Strong and precise communication and documentation skills, with a will to understand and be understood

• Prides themselves on writing highly readable, thoroughly tested code

• The personal organization skills and patience to manage multiple contexts as projects and features come together. A good dev can do things like: juggle tickets and Git branches, keep zero inbox, write notes for themselves to keep their small tasks straight, whip up shell scripts/test data to automate repetitive tasks

• A passion for being part of the startup journey and taking ownership of the company’s success

• A willingness to take initiative and enthusiasm to make an impact and take action

• Thrives in a highly collaborative environment and enthusiasm for being a team player

Bonus point if you

• Built Apps on the AWS Amplify (Serverless Design) framework, which is the primary backdrop for our App.  

What we offer

• Flexible working hours and locations. Your success is measured on outcomes

• A culture of NO meetings where maker time and productivity is prioritized

• Excellent start-up culture with openness and inclusiveness

• True ownership and autonomy over your role and the impact on the company

• Prioritization of focus time and productivity 

• Your choice of technical setup and equipment

• Experienced founders with many years of successfully building product across multiple ventures

• Annual meetup as a team in New York City.

What to expect in the interview process

Given the remote nature of our work setting, one of the core principles for how we operate as a remote team is written communication. And we therefore run a slightly unique interview process that begins with an email-based exchange to learn more about your background, communication style and overall fit for the role.

• Stage 1: You’ll begin with an email conversation with our Co-founder, Josh Peacock, to get a sense of your technical background, written communication, and English proficiency.

• Stage 2:  Next, you'll have a follow-up email exchange with one of the Makers on our team on a set of more technical questions to get a deeper understanding of your technical knowledge and capabilities.

• Stage 3: We’ll then ask you to complete a short technical assignment to demonstrate your practical skills in action.

• Final stage: You’ll have two video calls—one with our Founder, Dennis Mortensen, and another with a Maker from the team to give us a chance to connect more personally and explore how you'd fit into the team.

Salary and compensation

About Us

Green Stuff World is a bootstrapped and profitable online hobby shop with over 10 years in the market and a team of ~80 staff. We’re growing fast, and our current tech stack can no longer keep up. That’s why we’ve been building a new 100% remote engineering team to modernize our platform.

Our backend is being rebuilt using C# on .NET 9. On the frontend, we use TypeScript with the Svelte framework to create fast, reliable web experiences that scale to high usage.

About You

We’re looking for an experienced, full-time Frontend Software Engineer to join our team. You should have a solid understanding of modern web technologies and a passion for designing and building user-facing features from the ground up.

Requirements

+ 4 years of experience building modern frontend applications with JavaScript, HTML, and Tailwind CSS

Nice to Have

Why Work With Us?

Salary

We offer between $30,000 and $40,000 USD annually, depending on experience.

Salary and compensation

Benefits

🌎 Distributed team

⏰ Async

🏖 Paid time off

👀 No monitoring system

🚫 No politics at work

🎅 We hire old (and young)

ModelVault is building the world’s first fully-integrated, on-prem AI appliance — a plug-and-play AI server preloaded with software, models, and tools that let businesses (and eventually consumers) run powerful AI models locally, privately, and securely.

We're looking for a Senior Software Engineer to help us build the core software stack that powers our on-prem systems — from model integration and system orchestration to user interfaces and remote updates. You’ll be a key technical partner in defining our architecture, tools, and technical culture from day one.

🚀 What You’ll Do

• Design and build the software stack that ships with ModelVault’s on-prem AI systems — everything from containerized inference engines to local dashboards and command-line tools.

• Set up and manage integration with modern LLMs and vision models (e.g. LLaMA, Mistral, SDXL), including support for fine-tuning and local deployment.

• Build and maintain user-facing tooling: CLIs, lightweight GUIs, and APIs that make the device intuitive for developers and AI teams.

• Make architecture decisions for system orchestration, hardware interfacing, remote update pipelines, and telemetry — all optimized for stability and security.

• Help set up GPU drivers, OS configuration (e.g., Ubuntu, NVIDIA stack), and optimized inference runtimes as needed.

• Collaborate with the founding team to test and iterate with early business customers.

• Contribute to hiring and scaling the engineering team over the next 12 months.

🧠 You Might Be a Fit If You

• Have 5+ years of software engineering experience, preferably at early-stage startups or in fast-paced environments.

• Are comfortable working across the stack — from OS-level setup and deployment to user-facing tools.

• Have experience with containerization, system packaging, deployment tooling, and managing model runtimes.

• Have worked with, or integrated, LLMs and ML models in real-world systems (e.g., inference, fine-tuning, embeddings).

• Can independently drive architecture decisions and own large pieces of product infrastructure.

• Thrive in ambiguity, learn fast, and are passionate about building great tools from scratch.

⭐️ Bonus Points

• Experience with GPU computing, NVIDIA drivers, CUDA, or model acceleration tools.

• Familiarity with ML tooling: vLLM, Ollama, Triton Inference Server, LangChain, etc.

• Comfort with Linux system internals, remote access tooling (e.g., SSH, Ansible), or auto-update agents.

• Previous experience with AI developer tooling, embedded systems, or secure local apps.

🌍 Why Join ModelVault?

• Help define a new category: secure, local AI for everyone — starting with businesses, expanding to the world.

• Work on real, shipped hardware + software that users will touch.

• Be part of the founding engineering team with high autonomy and deep ownership.

• Fully remote, async-friendly, with strong product velocity and clear vision.

Salary and compensation

Benefits

🌎 Distributed team

⏰ Async

🏖 Paid time off

📚 Learning budget

💰 Profit sharing

🚫 No politics at work

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

Axios - Smart brevity worthy of people's time, attention and trust.

Tokemak is looking to hire a Web3 Junior Frontend Engineer to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

About the Codex Student Program

The Codex Student Program (CSP) is aimed at Bachelor, Master’s or PhD students looking to gain experience and do research and development in one of the domains of interest related to the Codex project. The grant is intended to help students gain visibility into their field of interest while also allowing them to learn about standard research and development practices that should be beneficial for their continuing careers.

Responsibilities

• Create engaging developer-focused content (blog posts, tutorials, social media)
• Build simple demonstrations and code examples showcasing our technology
• Assist with content strategy and identify topics that resonate with developers
• Help measure and track the impact of content initiatives
• Collaborate with product and engineering teams

Requirements

• Currently pursuing a degree in Computer Science or related field
• Basic coding experience, particularly in technologies we use in Codex
• Strong written and verbal communication skills
• Curious about decentralized technologies and storage solutions
• Ability to explain technical concepts clearly
• Self-motivated and comfortable working in an async, fast-paced environment

The Grant

The CSP is very flexible and adapts to different levels of experience and various lengths. The following numbers are just indicative, as the final stipend might slightly change depending on the student experience and to adapt to differing regions’ costs. For an officially enrolled PhD student, the CSP offers a stipend in the range of $2,000/month (full-time equivalent).

In addition, the CSP may offer mobility grants to attend meetings and related conferences within the scope of the internship’s research field.

Application

To submit your application, please fill out this form providing the following documents:

• Up-to-date Curriculum Vitae
• A cover letter expressing your research interests
• Proof of enrollment in your university
• Reference letter from one of your university professors
• Applications will be evaluated a few weeks after submission. Students passing the initial evaluation will be contacted to pass a short interview.

The fees, duration of the agreement, and deliverables shall be reviewed on a case-by-case basis and as set out in the contractor agreement to be signed by the student. Please consider that once you have signed the agreement, you must comply with the local regulations for the provision of the services that are applicable in your country of residence or nationality.

About Us

Re7 Capital is a London-based cryptoasset investment firm, leveraging our deep crypto network and proprietary data infrastructure to drive investment decisions across various DeFi and alpha strategies. Through Re7 Labs, we also collaborate with leading projects and blockchains to design DeFi ecosystems, provide on-chain risk curation, and deliver vault management services.

Our team combines expertise in investment management, data science, and crypto. To support our continued growth, we are seeking a motivated Full Stack Web Developer to join our engineering team. Reporting directly to the Head of Technology, you will take full ownership of our dApps, used to interact with our vault smart contracts.

Responsibilities

• Develop and maintain responsive, user-friendly front-end interfaces using React, Next.js, Vue or similar frameworks.
• Integrate EVM and non-EVM smart contracts using libraries like Ethers.js, Web3.js, Viem, Starknet.js and wallet connectors such as ConnectKit and wagmi.
• Support wallet integrations including MetaMask, Argent X, and Braavos.
• Design and implement scalable back-end services and APIs using Node.js, Express, and related technologies.
• Collaborate with blockchain engineers to interact with smart contracts and on-chain data.
• Implement best practices for security, including wallet connectivity, transaction handling, and protection of user data.
• Deploy and maintain applications on AWS (EC2, Elastic Beanstalk, S3, CloudFront), with a focus on scalability, logging, and monitoring.
• Set up and manage CI/CD pipelines using GitHub Actions or similar tools to automate testing and deployment workflows.
• Deploy applications to decentralized hosting environments (e.g., IPFS, Fleek) as well as cloud-based infrastructure.
• Ensure performance optimization through CloudFront caching, invalidation strategies, and SSL/TLS management.
• Contribute to Whisk infrastructure and security, ensuring resilient and secure production deployments.
• Work closely with designers, PMs, and cross-functional teams to define and deliver new DeFi features and enhancements.
• Implement and maintain interactive UI elements and animations using modern HTML/CSS (including transitions, keyframes, and responsive styling) within PHP-based web applications.

Requirements

• Proficiency in JavaScript/TypeScript and PHP.
• 5+ years of experience in web development, including 3+ years in dApp development.
• Hands-on experience integrating and interacting with both EVM and Non-EVM smart contracts.
• Familiarity with ConnectKit, wagmi, and Viem libraries for modern wallet connection flows.
• Experience deploying web applications on AWS using services like Elastic Beanstalk, EC2, and S3, with understanding of environment config, auto-scaling, and CloudWatch logging.
• Proficient in setting up CI/CD pipelines using GitHub Actions (or similar tools), including artifact packaging and automated deployment.
• Working knowledge of CloudFront, CDN behavior, cache invalidation, and AWS Certificate Manager.
• Familiarity with IAM roles, security groups, VPC setup, and cloud infrastructure security best practices.
• Experience with front-end frameworks (React, Next.js, Vue, etc.)
• Comfortable working in Linux environments and using Git for version control.
• Understanding of DeFi concepts and major protocols (e.g., Uniswap, Aave, Curve).
• Awareness of and ability to support Whisk infrastructure and security requirements.
• Basic knowledge of HTML5, CSS3, and animation techniques (e.g., transitions, keyframes, scroll-triggered effects), with the ability to integrate them into PHP-rendered views or templating engines.

Benefits

• A dynamic, collaborative, and highly technical work environment.
• Opportunities for professional growth in a rapidly evolving industry.
• Remote-first setup with regular opportunities to meet the team in person.
• Competitive compensation package.

Application Process

Please submit the following:

• Your resume
• A cover letter explaining your interest in the role
• Your response to the following technical challenge:
• Challenge: Describe a high-level architecture and solution for a dApp that supports both EVM and non-EVM wallets (e.g., MetaMask and Braavos). Include considerations for wallet detection, abstraction, and secure transaction signing.

Circle is looking to hire a Lead Analyst, Third Party Security to join their team. This is a full-time position that can be done remotely anywhere in the United States.

Espresso Systems is looking to hire a Developer Relations Lead to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

Exodus is looking to hire a QA Analyst to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

GitLab is hiring a remote Support Engineer (Sunday Coverage - AMER). This is a full-time position that can be done remotely anywhere in Americas.

GitLab - A single application for the entire DevOps lifecycle.

About the Codex Student Program

The Codex Student Program (CSP) is aimed at Bachelor, Master’s or PhD students looking to gain experience and do research and development in one of the domains of interest related to the Codex project. The grant is intended to help students gain visibility into their field of interest while also allowing them to learn about standard research and development practices that should be beneficial for their continuing careers.

Responsibilities

• Help increase awareness of Codex & its tech stack
• Create sample applications and code examples
• Support developers through forums, documentation, and direct engagement
• Gather feedback from the developer community to improve our platform
• Represent our project at virtual events, hackathons or university gatherings
• Seek opportunities to organise Codex developer meetups and coding challenges

Requirements

• Currently pursuing a degree in Computer Science or related field
• Comfortable with public speaking and technical demonstrations
• Basic understanding of decentralized technologies
• Enthusiasm for engaging with developer communities
• Strong problem-solving skills
• Interest in building your personal brand within the tech ecosystem

The Grant

The CSP is very flexible and adapts to different levels of experience and various lengths. The following numbers are just indicative, as the final stipend might slightly change depending on the student experience and to adapt to differing regions’ costs. For an officially enrolled PhD student, the CSP offers a stipend in the range of $2,000/month (full-time equivalent).

In addition, the CSP may offer mobility grants to attend meetings and related conferences within the scope of the internship’s research field.

Application

To submit your application, please fill out this form providing the following documents:

• Up-to-date Curriculum Vitae
• A cover letter expressing your research interests
• Proof of enrollment in your university
• Reference letter from one of your university professors
• Applications will be evaluated a few weeks after submission. Students passing the initial evaluation will be contacted to pass a short interview.

The fees, duration of the agreement, and deliverables shall be reviewed on a case-by-case basis and as set out in the contractor agreement to be signed by the student. Please consider that once you have signed the agreement, you must comply with the local regulations for the provision of the services that are applicable in your country of residence or nationality.

Mural is hiring a remote Senior Software Engineer, eCommerce. This is a full-time position that can be done remotely anywhere in Argentina.

Mural - Online brainstorming, synthesis and collaboration.

Serokell is a fast-growing, fully remote software development company that works on innovative solutions for complex problems. We’re packed full of adventurous, curious, and inclusive folks who want to build cutting-edge software with modern technologies like functional programming.

This position is open now with a July start. This is a project-based hire with the option to extend if it is a good match. Submit your CV and we’ll reach out promptly.

We’re seeking a middle to senior level Solidity Developer to join a team of fierce and fun Serokellers.

Hiring Process Overview: We invite candidates to the HR screening as the first step. Next, we conduct a technical interview with those whose profiles align with our requirements. Successful candidates will receive an offer.

Requirements:

• Fluency with Ethereum or another EVM-based blockchain ecosystem
• 2+ years in software development
• 1+ years experience writing, testing, and deploying Solidity contracts
• Hands-on experience with Hardhat, Foundry, Truffle, or Remix for development, testing, and debugging, including transaction submission, data retrieval, and key management
• Understanding of security issues and best practices for Ethereum and De-Fi applications
• Knowledge of popular token standards such as ERC-20, ERC-721, and ERC-1155
• Experience developing and integrating decentralized applications, both backend and frontend
• Basic understanding of cryptography primitives: public/private keys, signing, encryption, hashing
• Knowledge of fundamental algorithms and data structures like hash tables, binary search trees, DFS, quicksort
• Strong coding practices, including clean code structure, use of git, pull requests, and code review
• Fluent English, strong communication and collaboration skills
• Comfortable with daily stand-ups and asynchronous updates
• Self-driven, proactive, teamwork-oriented, curious and inclusive mindset
• Full-time commitment, around 140–160 hours per month
• Comfortable overlapping with team time zones from UTC 0 to UTC -8

It will be a significant plus if you have:

• Knowledge of TypeScript, Haskell, Rust, or OCaml
• Experience conducting security audits and identifying vulnerabilities
• Understanding of computer networks, HTTP, TCP/IP stack, and data synchronization models used in modern service APIs
• Familiarity with build/deploy automation tools and CI/CD systems such as Docker, Nix, Kubernetes

Responsibilities:

• Create and implement secure and efficient Solidity contracts, ensuring scalability, reliability, and maintainability
• Integrate contracts with EVM blockchain networks, often involving backend or frontend work
• Review and audit code
• Develop and execute unit tests, integration tests, and end-to-end tests
• Write detailed documentation for code, including design specs, user guides, and API documentation
• Stay updated on the latest developments in Solidity, Ethereum, and EVM-related technologies, cryptographic methods, and relevant programming languages
• Optimize code performance and gas efficiency
• Implement and enforce security best practices to protect contracts from common vulnerabilities
• Provide ongoing support and maintenance for deployed applications, addressing user-reported issues and bugs

We offer:

• Competitive salary.
• Engaging international projects.
• Participation in leading global conferences.
• International and multicultural teams.
• Fully remote work with flexible hours.
• Ability to take time off as needed.
• Investment in career and professional growth, with potential for wage increases.
• Mentoring and training programs.
• Opportunity to contribute to a leading functional programming blog.
• Therapy sessions for well-being support.

By joining Serokell, you’ll become part of a warm community of ingenious engineers, computer scientists, designers, marketing experts, and other inventive minds. You’ll work on ambitious projects building the next generation of computer software, explore creative initiatives unhindered by bureaucracy, and enjoy our vibrant Slack channels—ranging from #music to #philosophyandtears (did we mention the massive custom emoji set?).

Stay in the loop.

Follow @raikucom on Twitter for product updates, engineering deep es, and a closer look at how we’re building the future of blockspace.

About Raiku

Raiku is reengineering blockchain infrastructure from first principles to make global digital markets as precise and dependable as physical systems. Built on Solana, our platform delivers deterministic execution, guaranteed inclusion, and low-latency performance—solving the foundational failures that cause transactions to miss, trades to revert, and systems to collapse under pressure. By placing high-performance compute close to where transactions happen and coordinating execution through our advanced scheduling engine, Raiku empowers developers to build scalable, high-performance applications—and gives institutions the reliability and control they demand. We believe financial infrastructure should behave like physics: fast, reliable, and predictable—every time, without exception.

Research Engineer (Solana/Rust)

We’re seeking a passionate Research Engineer to drive protocol-level innovation on Solana. As the ideal candidate, you’ll combine deep technical expertise with scientific curiosity to:

• Lead technical discovery initiatives focused on Solana’s runtime, consensus, scheduler, and networking layers
• Conduct performance modeling and develop validator-centric architecture solutions
• Identify and address complex edge cases in transaction handling across production environments
• Translate research findings into actionable protocol design improvements

You’ll collaborate directly with our CEO, CTO (your manager), protocol architects, and key Solana ecosystem contributors to shape validator economics and transaction lifecycle guarantees across the Raiku stack.

Key Responsibilities

• Analyze and model Solana’s core architecture — deeply understand and document Solana’s runtime, scheduler, consensus, Turbine/Gossip, and transaction pipeline, with emphasis on edge cases under network stress or validator misbehavior.
• Lead internal research on validator economics and incentive alignment — explore impacts of Raiku’s slot marketplace, Ahead-of-Time (AOT) block auctions, and inclusion guarantees on validator profitability and slashing risks (e.g. under SIMDs 0096, 0123, 0212, 0228).
• Design bandwidth and blockspace pricing models — define and simulate pricing mechanisms for Raiku’s primary and secondary slot markets, ensuring validator rewards and application inclusion needs are economically aligned.
• Prototype system-level experiments across the Raiku and Solana stack — evaluate performance, liveness, and correctness when integrating Raiku’s ackermann-node and sidecar into Solana validator clients (e.g. Agave, Jito).
• Develop proofs-of-concept for transaction lifecycle primitives — such as pre-confirmations, slot reservations, and proof streaming for large bundled state transitions.
• Research and benchmark global account models — test interaction models across multiple VMs (e.g. SVM, EVM, MOVE) and assess state determinism and composability in high-throughput environments.
• Contribute to the design of Raiku’s protocol-level mechanisms — including builder commitments, proposer formats, MEV mitigation strategies, and slot slashing logic under failure modes.
• Author technical deep es, simulations, and RFCs — serve as a knowledge base for both internal and external stakeholders across Raiku’s validator, capital, and app layers along with wider engineering and marketing teams.
• Collaborate with external researchers and validators — especially those running testnet sidecars or participating in bandwidth resale to ensure safe and performant mainnet integration.

Preferred Qualifications

• Technical background with strong system-level experience
• Proven open-source engineering background, evidenced by contributions to major blockchain or distributed systems repositories — ideally within the Solana ecosystem.
• Involvement in protocol research, MEV, performance tuning, or client implementations
• Experience designing proofs-of-concept for novel execution or slot-inclusion logic
• Familiarity with zero-knowledge proof systems and state settlement patterns
• Active presence in relevant research circles, Discords, or open-source forums

What We’re Looking For

• 3+ years of experience working with Rust in production (preferably in core systems or blockchain contexts)
• Deep familiarity with Solana’s source code and protocol-level architecture (runtime, scheduler, consensus, networking)
• Demonstrated ability to reason through complex distributed systems
• Experience modeling and explaining performance bottlenecks in real-world validators
• Ability to read protocol proposals and specs and convert them into actionables (e.g. implementation paths, test harnesses, edge case coverage)
• A deep design philosophy focused on deterministic execution and reliable system behavior
• Strong communication skills and clarity in technical writing

What We Offer

• A chance to join a category-defining protocol team pushing the frontier of Solana infrastructure
• Token upside and a key role in shaping Raiku’s ecosystem footprint
• Remote-first team with async workflows, a high ownership culture, and deep technical curiosity
• Competitive salary, token allocation, and performance-based bonuses
• Budget for travel, ecosystem events, and home office setup

Airtable is hiring a remote Developer Support Engineer. This is a full-time position that can be done remotely anywhere in the United States.

Airtable - Build powerful work apps, without coding.

Gnosis is looking to hire a Summer Internship (Ethereum Ecosystem) to join their team. This is an internship position that can be done remotely anywhere in EU or India time zone +/- 3 hours.

🚀 About Orga AI

Orga AI, headquartered in Palma de Mallorca, builds real-time AI systems that see, listen, and speak. Our mission is to enable people to interact with technology in a fluid and natural way through the multimodality of AI.

🛠️ Responsibilities

• Design and optimize Python 3.11 / FastAPI / asyncio-based APIs and microservices powering our SDK and TTS engine.

• Integrate and scale audio-video components (WebRTC, WebSockets) to maintain latency below 300 ms.

• Implement secure and scalable architectures in AWS EKS + Fargate, using IaC (Terraform) and CI/CD (GitHub Actions).

• Ensure observability with Prometheus/Grafana and maintain defined SLOs.

• Collaborate with the MERN and DevOps teams for efficient continuous deployments.

• Mentor junior team members and participate in code reviews with a focus on best practices.

🎯 Requirements

• 5+ years of experience building production-grade backends with Python.

• Expertise in concurrency and high-performance systems (asyncio, multiprocessing, profiling).

• Professional English proficiency and time zone overlap within CET ± 2 hours.

✨ Nice to Have

• Experience with audio/video streaming or TTS.

• Work with LLMs, PyTorch, Transformers, or ONNX Runtime.

• Knowledge of Rust or Go for high-performance paths.

• Experience leading end-to-end features in fast-paced environments.

🌍 What We Offer

• 100% remote contract, flexible schedule focused on outcomes.

• Multidisciplinary team and a culture of continuous feedback.

📜 Selection Process

• Interview (40 min)

• Technical Deep-Dive (90 min) – Pairing with the CTO

• Cultural Fit & Roadmap (45 min) – Chat with the CEO and Co-CEO

  All steps are completed within ≤ 7 days from the initial interview.

🚀 We’re Not Your Typical Startup

Orga AI is a startup founded by Marc Revert (CEO), a 17-year-old entrepreneur, and Julio Roldán (Co-CEO), a seasoned professional with over 30 years of experience. Our international team of 18 members spans the US, Japan, Argentina, Spain, and France.

Salary and compensation

Benefits

🌎 Distributed team

💰 Equity compensation

🎅 We hire old (and young)

Sahara AI is looking to hire a ML Research Intern to join their team. This is an internship position that can be done remotely anywhere in the United States.

About Us

Role Overview

What You’ll Do

• Build and maintain the Interviews Chat mobile app using React Native.
• Collaborate with the existing team to bring Interview Copilot and Interview Prep to mobile.
• Implement smooth, native-feeling UI and seamless integration with backend APIs.
• Optimize performance for both iOS and Android platforms.
• Handle edge cases around audio, permissions, and background activity (e.g. for meeting-based interviews).
• Test, debug, and iterate quickly based on user feedback.

What We’re Looking For

• 3+ years of experience building mobile apps with React Native.
• Strong command of JavaScript/TypeScript, React, and mobile performance optimization.
• Familiarity with mobile-specific challenges: push notifications, audio access, app permissions, App Store / Play Store submission.
• Experience integrating REST or GraphQL APIs.
• Ability to work independently in a fast-paced remote environment.
• Bonus: experience with speech-to-text, OpenAI, or real-time data handling.
• Bonus: previous work on tools or products related to productivity, video/audio communication, or AI.

Why Join Us?

• Work remotely from anywhere in the world.
• Be the lead mobile developer on a growing product with real impact.
• Shape the future of a tool that helps people land jobs and level up their careers.
• Collaborate with a highly technical, no-fluff team.
• Flexible working hours and competitive compensation.

About the Process

We keep it simple and fast. If your profile looks like a match, we’ll reach out for a quick chat. No take-home tests, just real discussion and code if needed.

Salary and compensation

Benefits

🌎 Distributed team

⏰ Async

🏖 Paid time off

⬜️ No whiteboard interview

🚫 No politics at work

🎅 We hire old (and young)