We are looking for a Senior Fullstack Python Developer to join our fast-growing Network.

In this role, you’ll lead the design and implementation of scalable backend services and APIs using Python (FastAPI, Django, or Flask), while delivering polished, performant user interfaces using modern frontend frameworks such as React.js or Vue.js.

What we are looking for:

• 5+ years of professional software development experience with strong fullstack exposure.


• 3+ years of production experience with Python (FastAPI, Django, Flask).


• Solid knowledge of JavaScript/TypeScript, HTML5, CSS3.


• Strong experience with React.js or Vue.js (or similar modern frameworks such as Next.js/Nuxt.js).


• Experience with relational databases (PostgreSQL, MySQL) and ORMs such as SQLAlchemy or Django ORM.


• Strong understanding of RESTful API design and integration patterns.


• Experience writing automated tests (unit, integration) for both backend and frontend.


• Practical experience with Docker and familiarity with CI/CD pipelines (GitHub Actions, GitLab CI, CircleCI, etc.).


• Experience deploying and operating services in the cloud (AWS, Azure, GCP).


• Strong problem-solving skills and excellent English communication (written and spoken).


• Ability to work independently and deliver high-quality results in a remote setup.


• Located in CET timezone (+/- 3 hours), we are unable to consider applications from candidates in other time zones.

Nice-to-have:

• Deep experience with TypeScript and modern frontend tooling (Vite, Webpack, Turbopack).


• Familiarity with microservices, DDD, CQRS, or event-driven architectures.


• Experience with GraphQL and schema design.


• Knowledge of message brokers (RabbitMQ, Kafka, Redis Streams).


• Experience with Kubernetes or other orchestration platforms.


• Exposure to performance tuning, caching strategies, and observability (logs, tracing, metrics).


• Security best practices (OWASP, auth flows, OAuth2/OpenID Connect).


• Background in startups or fast-paced product environments.


• Contributions to open-source projects or published technical content.

Responsibilities:

• Design, implement, and operate scalable backend services using Python (FastAPI, Django, Flask).


• Build and maintain responsive, accessible web UIs using React.js, Vue.js, or similar modern frameworks.


• Design, document, and consume RESTful APIs (and optionally GraphQL).


• Integrate backend systems with relational and NoSQL databases.


• Ensure high code quality through unit/integration tests, code reviews, and automated pipelines.


• Make architectural decisions across backend, frontend, and system integration (monolith vs microservices).


• Collaborate with designers and product teams to translate requirements into technical solutions and excellent user experiences.


• Troubleshoot production issues, optimize performance, and ensure reliability and security.


• Mentor and guide other engineers, helping elevate team best practices.


• Work in an agile environment and contribute to continuous process and delivery improvements.


• Document architectural decisions, API contracts, workflows, and deployment procedures.

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What we offer:
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Chronicle is a cutting-edge decentralized Oracle solution delivering secure, transparent, and verifiable real-time data. With over $13 billion in collateral secured for major DeFi ecosystems, we empower institutions, builders, and tokenized asset issuers with unmatched trust and transparency.

Backed by a $12M seed round from leading investors and angels, Chronicle is expanding its infrastructure, security, and operational capabilities to support the next generation of institutional customers, including asset managers, custodians, banks, and tokenization platforms.

In addition to our continued partnership with Sky (formerly MakerDAO), we are building the world’s first fully verifiable, cost-efficient, scalable, and decentralized oracle infrastructure for both DeFi and Real World Assets (RWA).

This is an opportunity to join a top-tier crypto infrastructure company at a pivotal stage of growth, where operational excellence, reliability, security, compliance, and institutional readiness are becoming as important as engineering velocity. Infrastructure is a first-class engineering discipline at Chronicle. We view platform reliability, operational resilience, and security as strategic capabilities that directly support customer trust and product growth.

The Role

We are looking for a seasoned Head of Platform Engineering to lead Chronicle’s infrastructure organization through its next stage of growth.

This role combines hands-on technical leadership with organizational development, operational resilience, security governance, compliance readiness, and platform strategy.

You will lead a globally distributed DevOps and Infrastructure team, own the reliability and scalability of our production systems, and help Chronicle mature into an infrastructure platform capable of supporting institutional-grade customers and regulatory scrutiny.

This is not a pure management position. We are looking for someone who remains technically credible and can actively contribute to architecture, incident response, infrastructure strategy, and engineering execution.

You will work closely with the Head of Engineering, Product, Operations, Legal, and Executive leadership to establish the foundations required for Chronicle’s next phase of growth.

What Success Looks Like

Within your first 12 months you will:

• Lead Chronicle’s operational compliance maturity through ISO 27001 and SOC 2 readiness.


• Improve operational resilience, disaster recovery capabilities, and follow-the-sun operations.


• Strengthen institutional readiness for audits, customer due diligence, and security reviews.


• Build a high-performing Platform Engineering organization and culture.

Key Responsibilities

Infrastructure Leadership

• Lead and grow Chronicle’s Platform Engineering and DevOps organization.


• Define infrastructure strategy, operational standards, ownership boundaries, and long-term platform roadmap.


• Build a high-performing team through hiring, mentoring, and leadership.

Reliability & Operational Excellence

• Own platform reliability, operational readiness, and service health.


• Establish measurable reliability objectives, operational KPIs, and continuous improvement practices.


• Build a mature operational culture through observability, incident management, on-call operations, and post-incident learning.

Security, Compliance & Resilience

• Lead infrastructure readiness for ISO 27001, SOC 2, customer due diligence, and institutional security reviews.


• Own infrastructure governance, operational controls, business continuity, and disaster recovery programs.


• Reduce operational risk, single points of failure, and dependency on individual contributors.

Platform Engineering & Developer Experience

• Own Chronicle’s cloud, Kubernetes, GitOps, CI/CD, and Infrastructure-as-Code platforms.


• Improve engineering productivity through automation, self-service tooling, and platform standardization.


• Partner with engineering teams to improve delivery confidence, operational efficiency, and developer experience.

Infrastructure Governance & FinOps

• Establish practices for vendor management, operational risk assessment, capacity planning, and infrastructure economics.


• Drive efficient infrastructure growth while balancing reliability, security, and cost.


• Maintain visibility into critical dependencies, infrastructure investments, and operational trade-offs.

Blockchain & Oracle Infrastructure

• Oversee the reliability, scalability, and operational maturity of Chronicle’s oracle and blockchain infrastructure platform.


• Improve platform reliability, observability, scalability, and operational tooling across multiple blockchain ecosystems.


• Bridge modern platform engineering practices with decentralized infrastructure.

Cross-Functional Leadership

• Partner with Product, Operations, Legal, Compliance, and Executive leadership on company-wide initiatives.


• Act as a trusted technical counterpart during audits, institutional onboarding, and customer due diligence processes.


• Communicate infrastructure strategy, operational health, risks, and priorities to both technical and non-technical stakeholders.

Required Skills & Experience

Leadership & Organizational Development

• 8+ years in Infrastructure, Platform Engineering, DevOps, or SRE roles, including 3+ years leading engineering teams.


• Proven experience hiring, mentoring, and developing engineers in distributed organizations.


• Strong track record of building scalable teams, operational processes, and engineering culture.

Regulated & Institutional Environments

• Experience operating and scaling infrastructure within environments subject to security, compliance, audit, or regulatory requirements.


• Familiarity with frameworks such as ISO 27001, SOC 2, PCI DSS, financial services controls, or equivalent governance programs.


• Experience supporting audits, customer due diligence processes, vendor assessments, or institutional security reviews.

Platform Engineering & Cloud Infrastructure

• Strong hands-on expertise with modern cloud-native infrastructure, including AWS, Kubernetes, Infrastructure as Code, GitOps, CI/CD, observability, and Linux-based systems.


• Ability to balance strategic leadership with hands-on technical contribution when required.

Reliability & Operational Excellence

• Experience operating large-scale production systems with mature incident management, on-call, disaster recovery, and business continuity practices.


• Strong understanding of service reliability, operational risk management, resilience engineering, and platform governance.

Technical Foundations

• Deep understanding of distributed systems, networking, security, automation, event-driven architectures, and cloud-native technologies.

You Will Stand Out If

• You have worked in regulated financial, payments, custody, or digital asset environments.


• You have contributed to ISO 27001, SOC 2, or similar compliance programs.


• You have built distributed teams and follow-the-sun operational models.


• You can balance startup execution speed with operational discipline.

What We Offer

• Competitive compensation package


• Equity participation


• Flexible payment options (USD, EUR, USDC)


• 6 weeks vacation


• Remote-first environment


• Flexible working schedule


• Annual company offsites


• Opportunity to work with industry veterans at the forefront of DeFi and Real World Asset infrastructure


• Direct impact on the future of institutional blockchain adoption

As part of the application process, we require completion of a KYC procedure to verify identity and location.

Goldsky is the data platform for financial products built on stablecoins. We give fintechs and financial institutions the real-time data infrastructure they need to launch stablecoin accounts, balances, payments, custody, and settlement products, without becoming blockchain infrastructure companies themselves.

Behind the scenes we operate one of the most demanding production data platforms in the industry. Our infrastructure powers high-volume products at companies like Polymarket, 0x, Kraken, and Circle, and continuously indexes onchain activity across dozens of networks with the latency, accuracy, and reliability that production financial systems require. As stablecoins move from a crypto primitive into mainstream financial infrastructure, fintechs and commercial institutions are turning to Goldsky to abstract away the messy parts (chains, RPCs, reorgs, indexing) so they can ship the financial products their customers actually want.

We’ve raised over $20M from Dragonfly Capital, Felicis Ventures, 0x Labs, Uniswap Labs, Protocol Labs, and angel investors including Plaid founders Zach Perret and William Hockey, and Zhuoxun Yin of Magic Eden. Our team has previously built mission-critical infrastructure at Meta, Google, Shopify, Activision, and more.

About the Role

We’re hiring a Growth Engineer to build internal tools, AI-powered workflows, and customer-facing experiences that compound how fast Goldsky grows. This is a builder-first role for someone who wants to operate at the intersection of GTM, product, and engineering, and who sees AI as a way to do the work of a much larger team with a small one.

You’ll report into Marketing and partner closely with sales, customer success, and product. You’ll have real autonomy to identify and build the highest-leverage automations, experiences, and tools, with budget for AI infrastructure and an explicit mandate to ship.

This is the right role for an engineer who loves shipping fast, finds operations problems genuinely interesting, and gets a kick out of replacing manual work with a clean piece of automation that runs forever.

Responsibilities

• Build AI-powered internal tools that compress the work of the GTM team. Lead enrichment and scoring agents, account research workflows, automated outbound personalization, call summarization and insight extraction, internal knowledge agents over Slack, Notion, and the CRM. Think about every hour of repetitive GTM work as a candidate for automation.


• Build customer-facing growth surfaces . Interactive demos, sandboxed playgrounds, in-product guides, AI-assisted onboarding, dynamic case study experiences, and tools that help prospects evaluate Goldsky themselves before they ever talk to sales.


• Ship marketing engineering . The website, landing pages, A/B tests, lifecycle email flows, attribution plumbing, and the integrations between marketing tools, CRM, and product analytics. Treat the GTM stack as a real engineering surface, not a pile of duct tape.


• Partner with sales engineering and solutions to automate parts of the customer evaluation journey: provisioning, sample pipelines, integration accelerators, ROI calculators, technical content generation.


• Instrument and learn . Set up the analytics and experimentation needed to know which tools and surfaces are actually driving growth. Kill what doesn’t work, double down on what does.


• Be the AI specialist for GTM . Stay close to the frontier of LLMs, agent frameworks, and AI-native tools, and bring back the ones that meaningfully change how we operate. Help the rest of the company become better AI users.

We’re excited to talk with you if

• You’re an engineer who has built things end to end: frontend, backend, integrations, agents, automations. You don’t need a PM to scope your work, and you can ship without permission.


• You’ve shipped with LLMs and AI tooling in production. You know the difference between a flashy demo and a system that holds up under real use. You’re comfortable with the Anthropic and OpenAI APIs, agent frameworks, retrieval, evals, and the rapidly evolving AI stack.


• You’re commercially curious. You want to know who buys, why they buy, what makes a great onboarding experience, and how a piece of automation can move a real revenue number.


• You’re fluent in modern web (TypeScript and Next.js or similar) and comfortable working across multiple environments, services, and third-party APIs.


• You operate with high autonomy. You identify the work that matters, scope it, ship it, and measure it. You finish things.


• You’re a strong communicator. You can talk to a salesperson about pipeline, a designer about a landing page, and a backend engineer about an API contract in the same afternoon, and pull all three threads together into something that ships.


• You’re excited about fintech and stablecoin infrastructure, or you’re motivated to get up the curve fast.

Bonus points for

• You’ve worked in a growth engineering, forward-deployed engineer, solutions engineering, or developer-relations role before.


• You’ve built internal AI agents or tooling that real teams use every day.


• You have prior experience in fintech, payments, stablecoins, or financial infrastructure.


• You’ve launched a side project, indie tool, or open-source library that other engineers actually use.


• You’ve built and operated revenue-driving experiments end to end, not just supported someone else’s.

Benefits

• Health Insurance - Employer-paid medical, dental, and vision plans for you and your family.


• Retirement - 401(k) plan through Vestwell.


• Flexible Time Off - Take time to recharge as you need it. We’re serious.


• Self Care Days - Every other Friday we have off. These days reflect our work philosophy: nine days at 110%, followed by one day to recharge.


• Home Office Stipend - $2,000 to create your dream office.


• New MacBook - We set you up with the best hardware, with a refresh every two years.


• Wellness Stipend - $100/mo for whatever helps you stay healthy.


• Connectivity Stipend - $75/mo to cover your phone or internet bill.


• Semi-Annual Travel - We meet up twice per year for company on-sites and retreats around the globe.

Remote

Who We Are: Galaxy is a global leader in digital assets and data center infrastructure, delivering solutions that accelerate progress in finance and artificial intelligence. We believe that blockchain and digital asset innovation will transform how value moves through the world – and we’re building the products and services to make that future a reality. Our institutional digital assets platform spans trading, investment banking, asset management, staking, self-custody, and tokenization technology. We also invest in and operate cutting-edge data center infrastructure to power AI and high-performance computing, addressing the growing demand for scalable energy and compute in the U.S. We work at the intersection of finance and technology, helping institutions, startups, and developers navigate a digitally native economy. Led by CEO and Founder Michael Novogratz, our team blends deep crypto expertise with institutional experience and a shared commitment to shaping the future of Web3 and AI. Galaxy is headquartered in New York City, with offices across North America, Europe, the Middle East, and Asia. To learn more about our businesses and products, visit www.galaxy.com.

What We Value

We are a diverse team of free thinkers, and fast movers united to help investors and creators energize the global economy. We are looking for individuals who thrive in a culture of builders and overachievers and embrace high performance, transparent feedback, and a mission-first approach. Our culture shapes our way of working and gets us where we want to be.

• Seek Excellence.


• Be Selective To Be Effective.


• Be Highly Aligned, Loosely Coupled.


• Disagree Transparently.


• Encourage Independent Decision-Making.


• Build Dream Teams.

Who You Are

The Blockchain Security Lead owns the security posture of on-chain systems and protocols across the organization. This role blends strategic leadership with deep hands-on expertise, overseeing a small team of blockchain security engineers while actively contributing to design reviews, threat modeling, and code audits.

You’ll partner closely with on-chain product and engineering teams to embed security into architecture, development, and operations—building scalable, reusable security controls that grow with the business.

What You’ll Do

• Lead, mentor, and grow a team of blockchain security engineers.


• Define and evolve the blockchain security strategy and roadmap.


• Serve as a trusted security partner to product, protocol, and infrastructure teams.


• Lead threat modeling and architecture reviews for on-chain systems.


• Perform and guide security reviews and audits of smart contracts (Solidity, Rust/Solana) and backend services and supporting infrastructure.


• Design and implement reusable security controls, patterns, and reference architectures.


• Support secure deployment of cloud-native infrastructure (containers, Kubernetes).


• Research emerging blockchain threats, exploits, and mitigations, and translate them into actionable controls.


• Embrace and champion the thoughtful adoption of AI to improve team performance and business outcomes.


• Leverage AI tools (e.g., generative AI, automation platforms, data copilots) to improve productivity, decision-making, and output quality in your day-to-day work.

What We’re Looking For

• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience)


• 10+ years of security software engineering experience


• 5+ years working with blockchain technologies


• 5+ years working with smart contract security across multiple chains


• Experience leading or mentoring a small, highly technical team


• Published material on vulnerabilities/security bugs within the Web3 community


• Expertise in secure SDLC, threat modeling, and application architecture review


• Multi agent code reviews for vulnerabilities using frontier models


• Secure coding practices and in-depth code review capability


• Strong familiarity with smart contracts (Solidity, Rust), cloud-native environments (Docker, Kubernetes), authentication and authorization, TLS/PKI, and cloud, infrastructure, and network security


• Clear, confident communicator across technical and non-technical audiences


• Comfortable balancing hands-on execution with strategic ownership; detail-oriented, pragmatic, and strong in problem solving under ambiguity

Bonus Points

• Direct exposure to Solana, staking systems, or similar Layer 1 protocols


• Prior experience at a blockchain security audit firm (e.g., Trail of Bits, Halborn, Ottersec, Zellic)


• Background in financial services or institutional crypto security


• Familiarity with DeFi protocol security, key management, and custody architectures


• Experience contributing to or leading security programs at a crypto exchange, protocol foundation, or digital asset firm

What We Offer

• Competitive base salary and discretionary bonus


• Hybrid/Flexible Working Arrangements


• Flexible Time Off (paid)


• 3% 401(k) company contribution


• Company-paid health and protective benefits for employees, partners, and other dependents


• Generous paid Parental Leave


• Competitive family planning benefits for US employees


• Opportunities to learn about the Crypto industry


• Smart, entrepreneurial, and fun colleagues


• Free daily snacks and weekly breakfasts/lunches


• Employee Resource Groups


• Free coaching and counseling sessions through Headspace

Galaxy respects diversity and seeks to provide equal employment opportunities to all employees and job applicants for employment without regard to actual or perceived age, race, color, creed, religion, sex or gender (including pregnancy, childbirth, lactation and related medical conditions), gender identity or gender expression (including transgender status), sexual orientation, marital or partnership or caregiver status, ancestry, national origin, citizenship status, disability, military or veteran status, protected medical condition as defined by applicable state or local law, genetic information or predisposing genetic characteristic, or other characteristic protected by applicable federal, state, or local laws and ordinances.

We will endeavor to make a reasonable accommodation to the known limitations of a qualified applicant with a disability unless the accommodation would impose an undue hardship on the operation of our business. If you believe you require such assistance to complete the application process or to participate in an interview, please contact careers@galaxy.com.

Gnosis Pay provides the API and card-program infrastructure that enables wallets, fintechs, and businesses to issue stablecoin-powered payment cards and create custom payment flows. Partners can easily connect on-chain wallets to real-world spending.

With our technology, users can spend stablecoins directly from their on-chain wallet using a Visa debit card. Transactions are executed through a secure smart-wallet rather than a traditional bank account, allowing users to retain full custody of their assets while paying anywhere Visa is accepted.

About the Role and Team

We build the infrastructure that bridges traditional financial rails and crypto, enabling new financial products and seamless integrations. Our goal is to provide a secure, scalable, and developer-friendly platform that powers both internal product teams and external partners.

We are seeking a senior Go developer with hands-on experience in the card payments industry to help us take Gnosis Pay from a B2C v1 to establish a B2B2C v2. This role is a unique opportunity to shape the performance and scalability of a novel web2-web3 product that bridges self-custodial crypto assets with global Visa acceptance. You will be involved in architecture, implementation and rollout of the Gnosis Pay product to clients.

Key Responsibilities

• Design, develop, and deploy high-performance and scalable backend services using Go. Develop and maintain RESTful APIs, Formance ledger, WorkOS and processing platform integrations


• Write clean, well-tested, and maintainable code adhering to best practices and coding standards


• Apply Domain-Driven Design (DDD) principles to model complex business domains effectively


• Participate actively in code reviews, providing constructive feedback to ensure code quality and consistency


• Collaborate closely with product managers, designers, and other engineers to understand requirements and translate them into technical solutions


• Contribute to the definition and improvement of our system architecture and engineering processes


• Troubleshoot and resolve production issues effectively and efficiently


• Provide guidance and support as necessary in the migration from TypeScript to Go for backend development


• Stay up-to-date with the latest trends and technologies in Go, database systems, and software development methodologies


• Contribute to technical documentation and knowledge sharing within the team

Who you are

• Proven experience (6+ years) in software development with a strong focus on backend development, specifically developing and deploying high-scale, reliable services (ideally in Fintech, Payments, or high-throughput systems)


• Proficiency in Go


• Passion for building innovative financial products and obsession with customer experience – you advocate for what’s best for users


• Hands-on experience integrating with and operating card scheme rails (e.g. Visa), including scheme rules, message flows, and real-world production issues around authorizations, clearing, settlement, and disputes


• Familiarity with best practices, standards and requirements of the payments industry


• You are excited to work at the intersection of and bridge the gaps between traditional finance and permissionless blockchain networks

What we can offer you

• Personal Development: Pursue your professional goals with our support, including personal education budgets and conference allowances. We invest in your growth and learning.


• Innovation and Experimentation : Interested in exploring new ideas? Dedicate your Friday afternoons to research or work on a side project within our ecosystem. We encourage creativity and experimentation.


• Flat Hierarchy: Navigate with ease in our organization. Our flat hierarchy ensures your ideas and contributions are valued and heard, without getting lost in a complex structure.


• Flexible and Remote Work : Not a morning person? No problem! We embrace flexible working schedules and have a long-standing culture of remote work. Balance your professional and personal life in a way that works for you.


• State-of-the-Art Equipment: Receive the latest hardware and all the tools you need. We make sure you’re well-equipped to do your best work.


• Growth and Opportunity: Grow with us in an exciting industry. As Gnosis rapidly expands, so do the opportunities for you to make a significant impact. We value initiative and a proactive approach.


• Community and Mission: Join a team that’s passionate about our mission and enjoys working together. We’re not just colleagues; we’re a community driven by a shared goal.

Forta is a leading threat prevention network, leveraging advanced AI and machine learning to proactively detect and prevent threats. Spun off from Open Zeppelin in 2021, Forta has top tier backers such as a16z, Blockchain Capital, and Coinbase Ventures, and is securing some of the top projects in crypto.

What You’ll Be Doing

In this role, you will play an essential part in building new components, communicating with our users to gather feedback, and working collaboratively with the rest of the team to make sure we solve important problems and provide a great user experience.

Specifically, you will

• Lead critical projects end-to-end: design docs, implementation in Go/Solidity, reviews, rollouts, and post-mortems.


• Build sequencer-adjacent services: screening APIs, proxies, attestations, and chain integrations (OP Stack/Arbitrum).


• Deep dive on performance: profiling, load tests, flamegraphs, cache/queue tuning, and data-path optimizations.


• Security first: threat modeling, key/secret management, IAM, least-privilege, audit/readiness practices.


• Operational excellence: on-call participation, incident response, blameless retros, runbooks.


• Mentor & multiply: guide teammates through designs, reviews, testing standards, and best practices.


• Ecosystem awareness: track EVM/OP/Arbitrum changes, block building patterns, and bring actionable insights.

You Should Apply If You Have

• 5+ years of experience in software development


• Knowledgeable about Ethereum and EVM


• Experience with Go and Solidity


• Experience with AWS services such as CloudWatch, DynamoDB, ECS


• Experience with Docker, ECS and Terraform


• Experience with OP Stack and Arbitrum preferred


• Desire to work with Rust


• Strong desire to further education about Ethereum and contribute to the blockchain space


• Prior remote experience: strong personal organizational skills, self-time management, and collaborative team ability


• Advanced English communication skills — all internal and external communication is in English


• Bonus: Bachelor’s or Master’s degree in Computer Science or related field

Benefits

• Medical Insurance: Top quality insurance options for you


• Paid leave for new parents


• Team Events: Company retreats in different locations around the world

At Forta, we are an equal opportunity employer and we value different perspectives. We are committed to building a diverse workforce. This includes but is not limited to gender, race, sexual orientation, religion, national origin and other characteristics that make each one of us unique. In this uniqueness, we find the most value.

Flow is a blockchain designed to make open, consumer-scale Web3 possible, so billions can connect, create, and own in ways they never could before. Web3 promised a new internet — Flow delivers the infrastructure to make it real.

About the Role

Flow’s Execution Team is responsible for the core protocol execution layer powering the Flow blockchain. As a Senior Software Engineer on this team, you’ll work on the systems that process transactions and drive performance at scale.

Why Join Flow

• Comprehensive health, dental, vision, and life insurance, plus a monthly fitness stipend


• Access to learning and development programs with up to $1,500 learning budget


• Flexible, encouraged paid time off


• Remote-first team distributed across 8+ countries


• Two annual team offsites


• Work on infrastructure powering NFL All Day, NBA Top Shot, Disney Pinnacle, and Ticketmaster

Fuse Energy is a forward-thinking renewable energy startup on a mission to deliver a terawatt of renewable energy — fast. We combine first-principles thinking with cutting-edge technology to build a radically better energy system. We raised $170M from top-tier investors including Multicoin, Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, and Box Group, with strategic angels including the co-founder of Solana and GPs behind Meta, Revolut, Spotify, and Uber.

We are creating a fully integrated energy company: from developing solar, wind and hydrogen projects to real-time power trading and distributed energy installations. By selling directly to consumers, we cut out the middleman, lower costs and pass savings on to customers.

We are also building the Energy Network — a decentralized platform of smart devices that rewards users in Energy Dollars for electrifying their homes, shifting usage to off-peak hours, and helping balance the grid.

About the Role

We are looking for a Senior/Lead Recruiter (Infrastructure) to join our team. You will play a pivotal role in scaling our physical infrastructure development footprint from the ground up, focusing on hiring across Grid Interconnection, Data Center Project Development, Land Acquisition, and High-Voltage/Substation Engineering.

Responsibilities

• Develop tailored sourcing strategies to engage top-tier talent from major data center operators, renewable energy developers, and the power/grid sector


• Screen and assess candidates for both specialized technical excellence and cultural alignment


• Run high-velocity, high-quality hiring processes: drive pipeline activity, facilitate post-interview debriefs, and ensure a seamless candidate experience


• Negotiate offers and close world-class talent in highly competitive infrastructure and energy markets


• Partner closely with hiring managers and department heads to deeply understand their technical requirements, hiring needs, and timelines

Requirements

• 3+ years of full-cycle recruiting experience with a heavy focus on technical or energy infrastructure in high-growth or startup environments


• Proven track record filling critical upstream roles including Grid Interconnection, Data Center/Renewable Project Development, Land Acquisition, or High-Voltage/Substation Engineering


• Proven ability to identify and close candidates with niche, highly competitive engineering and infrastructure skill sets in the local market


• Ability to partner effectively with hiring managers and candidates, acting as a trusted talent advisor rather than just a process manager


• Excellent relationship-building and influencing skills across all levels of an organization, from technical engineering leads to executives


• Strong written and verbal communication skills, with a proven ability to pitch experienced infrastructure professionals on a high-growth startup mission


• Experience with modern ATS tools, pipeline reporting, and data-driven recruiting practices

Benefits

• Competitive salary


• Biannual bonus scheme


• Fully expensed tech to match your needs


• Paid annual leave


• Opportunity to work closely with senior business leaders and exposure to building a global energy business

Fold is a publicly traded Bitcoin financial services company offering the first-ever bitcoin-rewards Visa debit card, a bitcoin-rewards credit card, a Bitcoin exchange and wallet, and thousands of merchant offers.

About the Role

The Backend Engineering team maintains the fundamental systems powering Fold’s products, including payment processing, ledger systems, card transaction flows, and the pipelines that tie it all together. As a senior engineer on this small team, you’ll have considerable influence over product direction and technical strategy.

Responsibilities

• Design and implement scalable backend services for real-time transaction processing


• Build and maintain event-driven systems that handle financial events


• Integrate with external partners including card processors, banking APIs, and payment networks


• Own features completely — from technical design through deployment and ongoing monitoring


• Work cross-functionally with product, design, and engineering colleagues to deliver iteratively


• Mentor team members through code reviews, pair programming, and architectural discussions


• Enhance engineering practices, tools, and infrastructure as the team scales

Required Qualifications

• 5+ years of professional software engineering experience with strong Java or similar statically-typed language proficiency (Kotlin, Scala, C#)


• Production microservices and distributed systems experience


• Familiarity with messaging or event streaming platforms (Kafka, Pulsar, or equivalent)


• Solid relational database knowledge with data modeling and transactional consistency skills


• Cloud infrastructure, CI/CD pipelines, and containerization competency


• Experience scaling systems in fast-growing environments


• Strong collaboration and communication abilities with a humble, team-oriented approach

Preferred Qualifications

• Financial systems, payment processing, or ledger/accounting domain expertise


• Knowledge of event-driven architectures, CQRS, and event sourcing patterns


• Experience with Micronaut, Quarkus, or comparable modern Java frameworks


• Bitcoin enthusiasm


• Active Fold product user

Benefits

• Fully remote team structure


• Flexible scheduling and unlimited time off


• Competitive salary with equity package


• 401(k) with 3% employer match


• Annual vacation stipend


• Comprehensive health, vision, and dental coverage including HSA and FSA options


• Paid parental leave


• Quarterly in-person team gatherings


• Bitcoin education resources and hardware wallet for new hires

Note: Candidates must possess permanent legal work authorization in the United States. Visa sponsorship is unavailable for this position.

Fireblocks is a digital asset infrastructure platform trusted by major financial institutions including BNY Mellon, BNP Paribas, ANZ Bank, and Revolut. Dynamic, a Fireblocks subsidiary, provides embedded wallet infrastructure for developers building crypto and fintech applications.

About the Team

Dynamic was founded in 2021 to make wallet components foundational to applications. The team builds developer-first SDKs enabling seamless embedded wallet integration. Dynamic powers wallet experiences for companies like Kraken, Magic Eden, and zerohash, having onboarded 50M+ wallets across crypto and fintech applications.

What You’ll Do

• Design and implement high-quality native mobile SDKs focused on API ergonomics, performance, and reliability


• Own SDK features end-to-end: from API design and architecture through implementation, testing, release, and documentation


• Build secure, reliable SDK components for wallet operations including cryptographic operations and blockchain interactions


• Define and evolve SDK architecture supporting maintainability, backward compatibility, and adoption


• Build sample applications and demos showcasing SDK capabilities


• Create comprehensive SDK documentation and integration guides


• Work with developer relations and support teams addressing customer integration challenges


• Establish best practices around testing, observability, releases, and code health


• Contribute to a culture of ownership through hands-on work, code reviews, and knowledge sharing

What You’ll Bring

• 5+ years software engineering experience with deep focus on mobile development and production-grade SDKs


• Demonstrated track record shipping high-quality code with concrete examples


• Strong hands-on experience with iOS (Swift) and/or Android (Kotlin); familiarity with React Native and cross-platform frameworks


• Experience building mobile SDKs including API design, versioning, packaging, and maintenance


• Experience with blockchain-enabled mobile systems including wallet flows, signing, and on-chain interactions


• Experience working on security-sensitive mobile software such as key management, secure storage, or financial products


• Strong grasp of mobile engineering best practices including CI/CD, automated testing, release management, and observability


• Get-things-done mindset with ability to independently own problems and deliver end-to-end solutions


• Comfortable making long-term architectural decisions while remaining pragmatic


• B.Sc. in Computer Science/Engineering or equivalent practical experience


• Remote role with preference for Americas time zone candidates

Big Advantages

• Rust and/or WebAssembly (Wasm) experience building cross-platform SDKs for mobile


• Experience designing shared core logic across iOS and Android


• Experience with advanced mobile security primitives including secure hardware, MPC, and low-level crypto


• Prior experience owning or founding a mobile platform or SDK from scratch

Rollups today rely on infrastructure that wasn’t built with them in mind, resulting in their isolation and the fragmentation of users, developers and liquidity within the Ethereum ecosystem. This prevents rollups from achieving the seamless composability that’s essential to web3’s vision. Espresso solves this by providing rollups with secure, real-time visibility into what’s happening on all integrated chains, including their own, empowering the apps to execute crosschain interactions immediately without waiting for slow settlement or trusting centralized sequencers.

The Espresso Network is currently live on mainnet in its initial release. In addition to fast confirmations and data availability, rollups seeking further decentralization can also opt to use the Espresso Network as a decentralized sequencer. As the first purpose-built base layer for rollups, Espresso supports a fast-growing ecosystem of interconnected chains regardless of tech stack, VM, or settlement layer—from established chains like Celo and ApeChain to emerging app-specific chains attracting their first users.

At Espresso Systems, we work with leading teams developing rollups and innovating around interoperability, including Offchain Labs, Polygon, Caldera, AltLayer, Cartesi, Across, Hyperlane, and beyond—all united in our mission to build a unified, composable ecosystem where rollups are free to achieve their full potential regardless of where they choose to settle.

The Espresso team comprises a diverse and passionate group of contributors from around the world. We are developers, designers, and researchers who have contributed in academia, open-source communities, policymaking, and beyond. We have raised roughly $60 million from leading investors in technology and crypto, including a16z, Greylock Partners, Electric Capital, Sequoia Capital, and Polychain Capital.

As a DevOps Engineer, you will assist the development team in building infrastructure to support production of the sequencer software, as well as build tooling for the deployment of test networks.

Responsibilities

• Monitoring and management of cloud environments (AWS, Azure, GCP)


• Assisting with CI/CD pipelines and general code management practices


• Develop and maintenance of tooling for deployment of Espresso Systems services

Requirements

• Experience working with containers in hosted environments


• Experience with Terraform or other similar declarative cloud operations technologies


• Comfort working in the Linux command line

Nice to Have

• Experience with Ansible, AWS container orchestration, Docker, Github Actions, Nix, Rust, and Terraform

Benefits

• Fully remote with flexible hours


• Work alongside the brightest minds in the crypto space


• Competitive salary + equity package


• Regular team off-sites to international locations


• Unlimited vacation policy


• Top-tier health, dental, and vision coverage for US employees

Eigen Labs is a frontier lab building coordination technologies for the post-AGI world. AGI is completely reconfiguring power, and a few major labs are already consolidating this power. We believe that coordination through open networks is the only counterforce that lets individuals maximize their agency.

We are building open networks for many different layers shaping AI: agentic research, inference infrastructure, and capital formation. Recently, we showed how a community of scientists, amateurs, and agents can collaborate to surpass Google’s unpublished quantum breakthrough, showcasing the power of open coordination.

What This Looks Like In Practice

A small number of companies are rapidly becoming gatekeepers to the most powerful systems ever created, trained on open internet, open research, and open-source software, now locked behind permission structures and centralized control.

The question isn’t whether AI will transform society. The question is who gets to participate.

We believe

• Scientific discovery should remain open.


• Intelligence should not be controlled by a handful of institutions.


• Individuals should be able to coordinate, build, and create without asking for permission.


• AI should empower people, not make them dependent.


• AI should expand individual agency, not concentrate power.

This isn’t a theoretical exercise. Darkbloom is already building distributed AI infrastructure from idle hardware around the world.

These are early examples of a much larger idea: open networks competing with centralized institutions.

We’re looking for researchers, engineers, founders, scientists, designers, and builders who see the same trend we do and want to help build the alternative. If you’re excited by open science, individual agency, coordination systems, and agentic infrastructure, we should talk.

Help us build what comes next. Learn more about working at Eigen here .

The Role

As a Senior Agentic AI Engineer at Eigen, You’ll work on the core systems that make AI agents actually usable in production. You’ve built real things - distributed systems, APIs, developer tools - and you’ve gone deep on agents, LLM pipelines, or autonomous workflows. You’re not just using AI tools - you have opinions on where this is going.

You will own large parts of the system and move quickly from idea → working product. You will spend most of your time building. Not managing. Not talking about roadmaps. Building.

This is a full-time role, remote-friendly, with a preference for U.S. time zones and close collaboration with the Seattle-based team.

What You Will Do

• Build agent runtimes and orchestration systems (planning, tool use, memory, coordination)


• Make agents reliable (retries, failure handling, state management)


• Make agents observable (tracing, debugging, evaluation)


• Make agents cheap (cost-aware execution, performance optimization)


• Make agents useful in production (not demos - real systems people depend on)


• Integrate LLMs, APIs, and external data into coherent, working systems


• Define how developers build, debug, and extend agent behavior

What You’ll Bring

We care more about evidence than years of experience. Show us you’ve built hard things that work.

Strong signals we look for

• You’ve shipped real systems that people depend on


• You’ve taken ambiguous problems and turned them into working products


• You’ve built or deeply explored agent systems, LLM pipelines, or automation beyond simple demos


• You understand system behavior in production - failure modes, tradeoffs, reliability


• You move fast and iterate - you don’t wait for perfect specs

Technical foundation we look for

• Strong backend / systems experience (distributed systems, APIs, infrastructure)


• Proficiency in at least one core language (Python, Go, TypeScript, Rust, etc.)


• Experience with reliability patterns (state, retries, observability)


• Comfort working across the stack when needed

Nice To Have

• Experience with agent frameworks (LangChain, AutoGen, CrewAI, or custom systems)


• Experience building multi-agent or orchestration systems


• Familiarity with LLM evaluation, prompting, or performance tuning


• Experience with workflow engines (Temporal, Airflow, Dagster)


• Experience building developer platforms, SDKs, or internal tools


• Exposure to retrieval systems, vector databases, or memory architectures


• Interest in crypto, distributed systems, or verifiable compute

The target salary range for this role is $187,000 - $253,000. This is determined by a few factors including your skillset, prior relevant experience, quality of interviews and market factors at the point in time of offer. Other rewards may include short- and long-term incentives, and program-specific awards. In addition, Eigen Labs provides various employee benefits, including:

US Benefits

• Competitive salary and non-cash compensation (tokens and equity)


• World class benefits package (medical/dental/vision)


• Remote work set up stipend


• Flexible hours and a supportive remote environment


• Flexible time off


• 401(k) retirement plan + company match


• Monthly wellness benefit


• Yearly off-sites


• Paid parental leave

If hired outside of the US through an EOR, benefits will be offered based on specific country requirements and EOR offerings.

Equal Opportunity Employment

There’s one more, very important thing. We are an equal opportunity employer. We search for amazing people of diverse backgrounds, experiences, abilities, and perspectives. We take care of each other to create an inclusive work environment where we love to come to work every day. We hope you can join us.

deBridge is building the internet of liquidity for DeFi — a unified layer that enables any app and any user to connect seamlessly across the entire ecosystem, in real time. The company has earned trust from over 700,000 users and facilitated more than $10 billion in cross-chain transfers. Partners include Trust Wallet, Phantom Wallet, and Jupiter Exchange.

Role Overview

A hands-on, full-time remote position building scalable services that power decentralized applications. You will work at the intersection of Web3 engineering and high-load distributed systems, directly impacting blockchain innovation.

Responsibilities

• Integrate with EVM and Solana blockchains using relevant libraries and frameworks


• Process blockchain data and interact with smart contracts


• Index on-chain events


• Develop backend services and SDKs using Node.js/TypeScript


• Work with PostgreSQL, MongoDB, Redis, Kafka, gRPC, Kubernetes, and AWS infrastructure


• Deliver production-grade code with strong test coverage and documentation


• Monitor and debug production systems


• Contribute to architectural decisions and code reviews


• Collaborate across protocol, frontend, data, and DevRel teams


• Establish best practices and improve engineering culture

Requirements

• 4+ years of backend development experience with Node.js/TypeScript


• Strong knowledge of distributed systems, databases, messaging, and cloud infrastructure


• Proficiency in modern testing frameworks (Jest, Mocha, Sinon)


• Familiarity with CI/CD pipelines


• High code quality standards and engineering best practices


• Fluent Russian (internal communication) and confident English (technical discussions)

Nice to Have

• Hands-on Web3 experience with EVM/Solana, smart contracts, and transactions


• Ability to read Solidity and understand smart contracts


• Familiarity with DeFi protocols and products


• Experience with observability tools (Prometheus, Grafana, ELK)


• Experience with alternative runtime ecosystems (C#, JVM, Go)

Benefits

• Competitive compensation package


• 100% remote work


• Opportunity to shape decentralized technology


• Collaboration with blockchain and distributed systems experts


• High-impact projects serving hundreds of thousands of users


• Continuous learning opportunities in the evolving blockchain space

Ctrl Alt is designing and operating the on-chain infrastructure powering digital capital markets globally. We bring together a unique blend of expertise in financial markets and cutting-edge in-house technology to deliver tailored, compliant solutions in the alternative assets space. Since launching in 2022, we’ve tokenized over $1.5bn in assets across real estate, private credit, funds, litigation finance and more.

We’re building a high-performance, people-first culture where ambitious individuals can thrive. We move fast, think big and hold ourselves to a high bar, while keeping things collaborative, open and genuinely fun. At Ctrl Alt ideas win on merit, teams work closely with leadership, and everyone has a voice in shaping what we build next.

We believe that hard work should come with real reward. You won’t just join a company - you’ll help build one. Last year alone, we grew from 17 to 50 people, and this year we’re going faster and further. That means real responsibility, meaningful impact, and the opportunity to grow alongside a company that’s redefining the future of finance through the tokenization of alternative assets.

If you’re excited by scale-up energy, ownership, and the chance to help shape both a business and a culture, Ctrl Alt is where you can do the most rewarding work of your career.

The Opportunity

We’re looking for a Blockchain Engineer to join our team and help build the next generation of Ctrl Alt’s tokenization and governance infrastructure. You’ll work at the intersection of finance and distributed ledger technology, designing secure and reliable on-chain components that power a platform trusted by asset managers, fund administrators, and institutional investors.

You’ll collaborate closely with our product team and other engineers to integrate blockchain networks into our systems, develop and test on-chain logic for tokenized assets, and build tools that make interacting with those networks seamless. Bringing both initiative and deep technical expertise, you’ll play a key role in ensuring our blockchain integrations are robust, auditable, and ready to scale as adoption grows. You’ll be the key player in Ctrl Alt’s multi-chain architecture and help us to take our blockchain technology to the next level.

What you’ll be doing

• Design and implement secure, auditable smart contract logic for tokenization, asset management, and governance


• Work with a queue-based architecture to create transactions, send them to the blockchain node, and manage the responses to keep track of the ledger


• Integrate blockchain and distributed ledger technologies into our backend systems


• Evaluate, test, and deploy blockchain logic on networks such as Cosmos, Liquid, and other Layer 1s


• Build tools for interacting with on-chain infrastructure (transaction monitoring, wallet integrations, etc.)


• Collaborate with product and engineering teams to deliver robust blockchain-based solutions for financial institutions


• Stay up to date on developments in blockchain infrastructure, standards, and regulatory frameworks


• Promote best practices in blockchain security and operational resilience

This role will be a great fit if you:

• 3+ years of software engineering experience, with at least 1+ years working with blockchain or distributed ledger technologies


• Experience using TypeScript/JavaScript to build integrations with blockchains


• Familiarising with a queue-based architecture


• Experience developing and deploying smart contract logic or similar on Layer 1 networks


• Familiarity with token standards and asset representation on-chain


• Understanding of cryptographic primitives (e.g. signatures, hashes, multisig) and transaction flows


• Experience integrating blockchain infrastructure into backend applications, ideally in a TypeScript/JavaScript based environment


• Knowledge of blockchain tools, APIs, and development environments (e.g. Cosmos SDK, Elements for Liquid, etc.

Nice to haves:

• Exposure to finance or fintech environments, particularly involving digital assets or tokenization


• Hands-on experience with Cosmos SDK, Liquid Network, or other modular blockchain frameworks


• Understanding of consensus mechanisms and interoperability protocols


• Familiarity with regulated tokenization platforms or compliance-first blockchain use cases


• Experience working with custodial and non-custodial wallet systems


• Strong communication skills for writing documentation and technical specs

Our Benefits

Join a scaling fintech building the next generation of investment banking. You’ll work at the intersection of capital markets and cutting-edge blockchain technology, helping drive and shape the future of financial infrastructure.

What it’s like working at Ctrl Alt

Build and own the future of finance

Take real responsibility in shaping digital capital markets, with the autonomy to lead decisions and drive impact.

Solve meaningful problems with exceptional people

Tackle complex challenges at the intersection of finance and technology alongside leaders with experience from Morgan Stanley, Credit Suisse, UBS, and Revolut.

Grow fast in a high-performance environment

Stretch beyond your comfort zone through close collaboration, rapid feedback, and continuous learning.

Innovate and make your mark

Bring bold ideas to life and influence our platform, products, and how we operate from day one.

How we support you

• Competitive salaries with regular reviews that reflect your impact, performance, and progression.


• Generous stock options so you directly share in the company’s growth and long-term success.


• Premium private healthcare to support your physical wellbeing.


• 26 days of annual leave, plus your birthday off, and regional bank holidays - with flexible leave so you can take time off when you need it.


• An enhanced parental leave policy to support you and your family at every stage.


• A MacBook, screens, and any additional equipment you need to perform at a high level.


• Access to salary sacrifice schemes covering childcare, groceries, EV cars, tech, pensions, bikes, and subscriptions. (UK Only)


• Modern, centrally located offices in London, Belfast, Dundalk, and Dubai - designed for collaboration and focus.


• An annual learning and personal development budget for training, exams, certifications, and qualifications - whatever helps you move forward.

Cryptio is the leading enterprise-grade financial data transformation and digital asset ERP platform for accounting, financial reporting, tokenization compliance, and loan management solutions. It is a complete back and middle-office platform that delivers financial integrity and accountability for businesses in crypto. Its platform allows users to transform on-chain and off-chain crypto activity into auditable records for accounting, treasury, tax filings, license applications, loans activity, and regulatory reporting.

Having recently announced our $45m series B , now couldn’t be a better time to join!

About the role

We’re hiring our first Applied AI Engineer to work directly with our Advisory Intelligence Product Engineer and the VP of Advisory Intelligence on net-new product. You’ll have full-stack ownership from Postgres schema to React UI, and you’ll collaborate directly with the VP on prompt architecture, workflow design, and product roadmap. The team is small on purpose.

This is a high-autonomy seat with real room to grow. You’ll experiment, ship, and shape the toolkit’s direction. As the practice scales, the right person grows into a technical leader for the function.

What you’ll do

The Advisory Intelligence toolkit covers the full accounting workflow: transaction-level close processes, chart of accounts benchmarking, policy generation, fit-gap analysis against institutional standards, and financial reporting outputs. Each tool combines deterministic logic (the parts where being wrong has financial consequences) with AI layers that draw on a structured library of real client engagements. You’ll work across the suite with primary ownership on net-new builds.

• Collaborate directly with the VP on prompt architecture, workflow design, and product roadmap. You’re a builder who shapes what gets built.


• Own full-stack feature delivery from Postgres schema through API layer through React UI


• Build and maintain multi-step AI pipelines: prompt chaining, structured output parsing, confidence scoring, failure recovery, and audit-trail logging


• Integrate third-party financial data APIs into production tool workflows


• Build financial document ingestion: parse uploaded spreadsheets and structured reports into typed data models for downstream AI processing


• Maintain and extend the deterministic pre-processing and heuristic layers that make AI output reliable enough for audit


• Contribute to the AI output evaluation framework: structured test inputs, expected outputs, scoring rubrics


• Work cross-functionally with finance practitioners, product, design, and leadership to scope what gets built and push back on specs that miss

What you’ll bring

Core engineering

• Production full-stack TypeScript: shipped real systems, not side projects


• Strong Node.js backend: REST APIs, middleware auth, async pipelines with batching, concurrency limits, retries, timeouts


• React and TypeScript for complex UI: state management with Zustand, schema validation with Zod, views that stay responsive at scale


• Exposure to distributed systems and microservice architectures: you understand the failure modes (partial writes, retries, ordering, observability) even if you haven’t owned a microservice deployment end-to-end

Data and Postgres

• Strong Postgres: data modeling for workflow and run-oriented schemas, indexing strategy, query troubleshooting at table scale


• Experience designing versioned config and audit-trail schemas. Append-only matters in compliance contexts and you’ve built for it.

How you operate

• Strong communicator, written and verbal. You can explain a technical decision to a finance practitioner and a product spec back to engineering.


• You take initiative. When the spec is wrong, you propose alternatives. When something’s broken, you don’t wait to be asked.


• You work cross-functionally without friction. Finance, product, design, leadership are all on your week, not just other engineers.


• Comfortable owning a feature from schema to UI without handoffs

Bonus points

• Hands-on production LLM work with AWS Bedrock, OpenAI, or the Anthropic SDK at real throughput


• Multi-step prompt workflows: chaining, structured output extraction, confidence thresholds, graceful degradation


• Debugged AI in production. You know where prompt issues end and infrastructure issues begin.


• Next.js App Router experience: API routes, SSR in data-dense interfaces


• Background job infrastructure for AI workflows (BullMQ, pg-boss, or similar)


• Finance or accounting tooling experience. Familiarity with GAAP/IFRS, month-end close, or audit process is a real advantage.


• AWS deployments, Docker, CI/CD pipeline ownership


• Logging, monitoring, and production debugging in distributed systems


• Parsing financial document formats (Excel, structured CSV, ERP exports) into typed pipelines

Perks

• 👩‍💻 Remote or Hybrid working


• 🏝️ 25 days paid holiday plus bank holidays


• 🙌 One additional day of annual leave each year, up to 30 total days


• 🎂 Your birth off


• 🧘 Mental health resources, wellbeing programs, and professional coaching


• 🫶 Family-friendly policies


• 💪 Fitness and wellness budget


• 💻 MacBook Pro


• 🖥️ $200 home office setup budget


• 🎓 Training and development budget

we have additional benefits depending on location

If this sounds like you, we would love to hear from you 🙌

At Cryptio, we move fast and take ownership of outcomes. We learn from failures, celebrate wins, and let humility, curiosity, and a passion for crypto guide how we work. If you value collaboration and want to build with purpose, you’ll feel right at home here.

CoW DAO is on a mission to protect Ethereum users from MEV and optimize trade execution across DeFi. We achieve this through the CoW Protocol, CoW Swap (a leading intent-based DEX aggregator), and the innovative MEV Blocker, which together help secure, aggregate, and route trades for optimal outcomes. We also fund values-aligned projects via the CoW Grants Program.

CoW Protocol is consistently ranked among the top DEX aggregators by monthly volume and is the largest intent-based exchange. Our MEV Blocker protects trades from harmful MEV extraction and is integrated across the Ethereum ecosystem. The CoW AMM is the only live AMM designed to protect liquidity providers from LVR (loss-versus-rebalancing).

With over 100 open-source repositories on GitHub , we’re transparent, community-driven, and deeply committed to the open-source ethos. Our real-time Dune Analytics dashboard showcases billions in cumulative trading volume and a rapidly growing user base. As we continue to scale, CoW DAO remains at the forefront of DeFi innovation, prioritizing security, efficiency, and decentralization.

About the role

Location: We are a fully remote team, and although we hire almost globally, there is a preference for this role to be based in Europe or remote +/- 4 hours CEST time

Please note we’re not hiring from the US, Australia, or New Zealand

Position: Full-time contractor

We are looking for an enthusiastic, motivated Staff Backend Engineer to help us build the next generation of decentralised trading protocols. As a dedicated backend engineer, you will gain ownership of our existing backend services and influence the creation, design, and execution of future features and products. You will work on technically challenging aspects of our off-chain services and our developer-facing APIs and help ensure the delivery of reliable and performant features to improve CoW Protocol.

Our Tech Stack

• Backend Code: Rust, Tokio, Cargo, Git ( https://github.com/cowprotocol/services )


• Infrastructure: Pulumi, AWS, Docker, Kubernetes, Grafana, Prometheus, Elasticsearch


• Other codebases: Typescript, Python, Solidity

What you will do

• Architect and design our off-chain services (core auction protocol as well as the orderbook) to support feature growth and the rapidly changing requirements that come from being an application on a constantly evolving blockchain.


• While your focus will be writing concurrent backend systems in Rust, you will also interact with our Smart Contracts written in Solidity and develop your understanding of auction mechanisms and DeFi protocols


• Participate in our on-call rotation to help ensure the reliability of our production systems ( on-call work is additionally compensated )


• Work closely with researchers and the product team to ship features and come up with new solutions for challenging technical problems


• Deliver high-quality code for features from concept until production (including state-of-the-art monitoring of our production systems)


• Give thoughtful and in-depth code reviews of your colleagues’ contributions to our open-source codebase

Who you are

• You have 8+ years of production experience with systems-level programming languages , with at least 3+ years of hands-on production experience using Rust


• You have practical experience working in web3 (ideally in DeFi and the Ethereum ecosystem)


• You have excellent computer science, programming, and algorithmic skills


• Experience with operating, maintaining, and architecting complex software systems


• You care deeply about the quality, readability, observability, and testability of your code


• You proactively give technical direction to improve performance, prevent issues, optimise data usage, and refactor the codebase


• You are a team player, strong communicator, and gladly share your expertise with others


• You collaborate effectively with a remote-first team on a large, open-source codebase


• Ideally, someone senior who can mentor colleagues and provide direction.


• You are excited to explore and gain experience with Ethereum

What we can offer you

• Flexible work environment: Join our hub in Lisbon or work remotely


• Token plan: Have a stake in our mission and shape the future of CoW DAO


• Periodic gatherings: Enjoy opportunities to connect with the rest of the team through regular trips


• Conference allocation: Stay up-to-date with ecosystem advancements using our conference budget


• Learning budget: Use our learning budget to support your higher ambitions


• Hardware budget: Take advantage of a hardware budget for acquiring necessary equipment


• Make an impact: You are joining a startup where you can make a huge difference. Your work matters!


• Flat hierarchies mean fewer processes and bureaucracy - see more of your ideas come to life!


• Flexible work and vacation times: Prioritize work-life balance through our robust flexible work policy and vacation allowance


• Growth: If you’re someone who loves taking the initiative and getting things done, CoW offers lots of opportunities for your individual growth

Referral Program

Earn 6.000 USDC or USD with the refer-to-earn program. More details here .

Culture

Life within the CoW DAO is an incredible adventure! We take pride in our collaborative approach, embracing autonomy and fostering a culture of big thinking and continuous growth. We value impact, ownership, simplicity, and team spirit. Plus, we’re all about feedback, coming together, and enjoying the journey along the way!

At CoW DAO, we strive to create a space where everyone feels included and empowered. We believe that our products and services benefit from our diverse backgrounds and experiences. All qualified applicants are considered for positions regardless of race, ethnic origin, age, religion or belief, marital status, gender identification, sexual orientation, or physical ability

The financial system is being rebuilt on open, programmable infrastructure, and Consensys is helping power that transition. From MetaMask, the platform trusted by tens of millions of users worldwide, to Linea, the only 100% proven zkEVM rollup and an emerging home for institutional ETH capital, Consensys builds products and infrastructure that enable users, developers, and institutions to participate in the next generation of the internet.

Our mission is to unlock the collaborative power of communities by making the decentralized web universally easy to access, use, and build on.

Joining Consensys means working with a fully remote, globally distributed team of technologists, designers, cryptographers, product thinkers, and researchers who are building the next layer of the internet. You’ll be exposed to new ideas, emerging technologies, and complex challenges that push you to stay at the top of your game while helping scale products and infrastructure used by tens of millions of users and thousands of developers across the web3 ecosystem. You’ll join a network of builders that reaches the edge of our ecosystem. Consensys alumni have moved on to become tech entrepreneurs, CEOs, and team leads at tech companies.

About the Mobile Platform Team

MetaMask’s Wallet Platform organization owns the client platforms for the MetaMask browser extension and mobile apps. The Mobile Platform team treats MetaMask Mobile as a platform: we enable all feature teams to ship high‑quality experiences faster by providing a secure, stable, high‑performance foundation with excellent developer experience and automated operations.

MetaMask Mobile (iOS & Android) is built primarily on React Native, with native code where it matters. As a Principal Mobile Engineer, you’ll be the most senior hands‑on technical leader focused on mobile: setting architecture, defining standards, and driving cross‑team initiatives that shape the future of our mobile platform and MetaMask app.

You’ll work closely with engineers across MetaMask, not just within Mobile Platform, to ensure our mobile apps performance and stability scale with our users, features, and the broader Web3 ecosystem.

What you’ll do

As a Principal Engineer, you will

• Own mobile platform architecture Define and evolve the architecture of MetaMask Mobile (React Native + native), leaning into performance by tightly integrating with backend services and optimizing app–backend interactions holistically rather than in isolation. Make key tradeoffs between JS/TS, RN, and native to balance performance, reliability, and iteration speed. Design and steward core platform systems (e.g., OTA, analytics foundations, data/persistence, auth, VPN/geolocation primitives). Lead design and architecture reviews for critical platform areas.


• Lead high‑impact, cross‑team initiatives Drive large upgrades and migrations (React Native, navigation, foundational libraries). Lead structural performance and stability work: startup time, crash rate, ANRs, jank, memory usage, bundle size. Break large efforts into incremental, shippable milestones with clear impact.


• Elevate developer experience & automation Improve tooling, local dev ergonomics, build/test pipelines, and release workflows for all mobile engineers. Establish clear patterns for navigation, state management, and platform primitives to reduce cognitive load. Push towards “push‑button” releases and reduced operational toil via automation. Own and continuously improve the mobile SDLC and lifecycle, including CI, testing, and release workflows.


• Build an AI‑enabled platform Integrate AI/LLMs into workflows to scaffold code, enforce patterns, and improve testing and feedback loops. Help define how tickets and platform patterns leverage AI safely and effectively.


• Drive app health & performance culture Define and evolve metrics and dashboards for performance, stability, and efficiency. Provide tools and guidance so feature teams can self‑diagnose and own regressions. Champion shared accountability for app health across all teams contributing to mobile.


• Multiply impact through leadership Mentor Senior/Staff engineers and influence technical direction across Wallet Platform and MetaMask. Help shape hiring and technical culture for a lean, senior, high‑leverage Mobile Platform team.

Would be great if you brought this to the role

• Experience ~10+ years building and scaling mobile apps, including ownership of large, production React Native or hybrid mobile platforms. Prior Staff/Principal‑level impact: leading complex, cross‑team technical initiatives.


• Technical depth Deep expertise with React Native in production: architecture, performance, debugging, bridging. Solid experience with native iOS (Swift/SwiftUI) and/or Android (Kotlin/Jetpack), including native modules and performance tuning. Strong understanding of mobile CI/CD, release engineering, and OTA systems.


• Platform & systems mindset Track record building internal platforms, shared libraries, or tooling for other engineers. Comfort operating in ambiguity and designing durable, reusable solutions. Strong architecture and communication skills; able to align diverse stakeholders.


• Leadership & mentorship Proven ability to influence without authority, set technical direction, and raise the engineering bar. Experience mentoring senior engineers and shaping technical culture.


• AI‑curious / AI‑pragmatic Experience or strong interest in using AI/LLMs to improve developer productivity and code quality.

Bonus Points

• Experience with crypto / Web3, wallets, fintech, or other security‑sensitive apps.


• Contributions to open‑source in React Native, mobile, performance, or tooling.


• Experience optimizing apps for emerging markets or low‑end devices.


• Background in fully remote, globally distributed teams.

Don’t meet all the requirements? Don’t sweat it. We’re passionate about building a diverse team of humans and as such, if you think you’ve got what it takes for our chaotic-but-fun, remote-friendly, start-up environment—apply anyway, detailing your relevant transferable skills in your cover letter. While we have a pretty good idea of what we need, we’re ready for you to challenge our thinking on who needs to be in this role .

It is a requirement of employment in this position that applicants will be required to submit to background checks including but not limited to employment, education and criminal record checks. Further details will be provided to applicants that successfully meet the criteria for the position as determined by the company in its sole discretion. By submitting an application for employment, you are acknowledging and consenting to this requirement.

The salary range listed for this role applies to US-based candidates only. Compensation for candidates based outside the US (including Canada, EMEA, and LATAM) will be determined based on location, experience, and skills during the interview process, and may differ from the listed US range.

US pay range (not including bonus, equity or other benefits)

$227,000 — $272,000 USD

In the rapidly evolving Web3 space, we believe that everyone is a builder. This expansive paradigm requires a range of backgrounds, talents, skills, and experiences to influence and shape the future. At Consensys, this diversity fuels our ability to shift control and redefine the realm of possibility. We are committed to ensuring that our technology empowers people and communities with economic and political agency through decentralized technologies. We welcome the range of perspectives and differences and celebrate them. We’re excited to see how your unique skills as a builder can contribute to our vision, drive innovation, and help us shape a more inclusive Web3.

Consensys is an equal opportunity employer. All employment decisions are made without regard to race, color, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law. Consensys is aware of fraudulent recruitment practices and we encourage all applicants to review our best practices to protect yourself which can be found ( https://consensys.io/careers/best-practices-to-avoid-recruitment-fraud/) .

Benefits

Competitive benefits

We have a comprehensive and competitive benefits package to make sure we’re looking after you and what matters most.

Equity

We believe in ownership and want everyone to have a stake in our future success, that’s why you’ll receive equity when you join us.

Recognized in the blockchain and Web3 ecosystem

Working at Consensys is a tremendous reference for your career. You’ll join a network of entrepreneurs and technologists that extends across the global crypto ecosystem.

Continuous learning & opportunities

We provide growth and development opportunities through the Consensys Advance Program, including full access to Coursera & comprehensive learning modules and programs.

Unlimited vacation/holidays

We value downtime to recharge and reset, ensuring everyone at ConsenSys has work/life balance. In addition, company-wide we participate in “zero productivity” days to take a break from work, shut down, and sit back and relax.

Flexible working arrangements

With our global workforce we have fine-tuned asynchronous working which means we have a lot of flexibility in the structure of when we work and how we work together.

Remote first

You’ll be joining a team based all over the world. Providing the unique opportunity to work with people from across 6 continents.

Chainlink is the industry-standard oracle platform bringing the capital markets onchain and powering the majority of decentralized finance (DeFi). The Chainlink stack provides the essential data, interoperability, compliance, and privacy standards needed to power advanced blockchain use cases for institutional tokenized assets, lending, payments, stablecoins, and more. Since inventing decentralized oracle networks, Chainlink has enabled tens of trillions in transaction value and now secures the vast majority of DeFi.

Many of the world’s largest financial services institutions have also adopted Chainlink’s standards and infrastructure, including Swift, Euroclear, Mastercard, Fidelity International, UBS, S&P Dow Jones Indices, FTSE Russell, WisdomTree, ANZ, and top protocols such as Aave, Lido, GMX and many others. Chainlink leverages a novel fee model where offchain and onchain revenue from enterprise adoption is converted to LINK tokens and stored in a strategic Chainlink Reserve.

About The Role

As a Senior Solutions Architect, you will play a crucial role in driving the adoption of Chainlink products across the capital markets industry as we continue to expand our presence there.

You will work closely with Sales and Marketing teams to evangelise Chainlink technology across the finance industry and work directly with technical teams at major institutions to gather requirements, scope projects and deliver innovative solutions that address the complex needs of their stakeholders. You will also work directly with internal teams such as Sales, Marketing, Product, Engineering and Legal and make a significant contribution to the ongoing development of the Chainlink capital markets product strategy.

Your Impact

• Drive the successful adoption of Chainlink products in the capital markets industry by establishing strong relationships with key stakeholders, including major financial institutions, and providing technical expertise and guidance throughout the sales and implementation process


• Lead and actively participate in gathering requirements, scoping projects, and designing innovative solutions that leverage Chainlink products to address specific use cases and challenges within the capital markets industry


• Contribute significantly to the development of the Chainlink capital markets product strategy by providing valuable insights, market feedback, and technical expertise, thereby influencing the direction and roadmap of the product suite


• Collaborate closely with internal technical teams, including developers and engineers, to provide feedback and guidance on product enhancements, bug fixes, and new feature development, ensuring that the capital markets requirements are effectively addressed


• Develop and maintain a comprehensive understanding of the capital markets industry, including market trends, challenges, and emerging technologies, to effectively position and promote Chainlink products

Requirements

• Technical pre/postsales technology experience, working with major institutions within capital markets


• Experience with, and strong knowledge of blockchain technology and associated areas (e.g. DeFi, tokenisation / digital assets, digital identity, etc.)


• Hands-on experience with middleware, integration architecture patterns, web services technologies, and APIs


• Experience building and delivering Proofs of Concept (PoCs) and responding to functional and technical elements of proposals independently,


• Respond independently and effectively to RFIs, RFPs, and Due Diligence Questionnaires (DDQs) — covering functional, technical, security, and compliance dimensions


• Build and deliver bespoke Proofs of Concept (PoCs) and prototype integrations that demonstrate viability within the customer’s existing technology stack


• Contribute to and maintain a library of reference architectures, solution accelerators, and technical decision guides for use across the solutions team

Preferred Requirements

• Experience in any of the following: Solidity, Golang, Rust, JS, Java, Python, C/C++


• Experience in networking protocols, private IP environments, cloud infrastructure, and the implementation of SSL/TLS security measures


• Knowledge of capital markets concepts, financial instruments and trading processes, including Corporate actions, PMS, OMS, Exchanges, FMIs, Clearing houses, etc.


• Experience with permissioned blockchain and public blockchains with familiarity with decentralised oracle design, data feed mechanisms, proof-of-reserve systems, or cross-chain messaging protocols


• Prior involvement in Digital Assets design, tokenised collateral programs, or digital securities issuance platforms at a regulated financial institution or central bank


• Experience as a technical author — published white papers, reference architectures, or standards contributions in blockchain, fintech, or capital markets


• Certifications in AWS / Azure / GCP (Solutions Architect level or above), TOGAF, etc.

All roles with Chainlink Labs are global and remote-based. Unless otherwise stated, we ask that you try to overlap some working hours with Eastern Standard Time (EST).

CertiK is the largest blockchain security auditor and provides a comprehensive suite of tools to secure the industry at scale. To date, CertiK has worked with over 4,900 Enterprise clients, secured over $557 billion worth of digital assets, and has detected over 18,000 vulnerabilities in blockchain code. Our clients include leading projects such as OKX, Tether, Ripple, and Pancakeswap. Our investors include top VCs like Tiger Global, Coatue Management, Shunwei Capital and Hillhouse Capital as well as industry leaders like Coinbase Ventures and Binance.

About the Role

We are seeking a Junior Blockchain Security Engineer with a strong security mindset and foundational technical expertise across smart contracts, blockchain nodes, and decentralized infrastructure. In this role, you will support Web3 projects by assisting in code audits, contributing to security tools, and conducting research under guidance. If you are eager to grow your career in blockchain security and passionate about securing decentralized technologies, we’d love to hear from you.

• Audit and review codebases for smart contracts, blockchain protocols, and decentralized applications (dApps) to identify and remediate vulnerabilities.

  
  



• Conduct guided security research, explore new attack vectors, and deliver actionable insights.

  
  



• Contribute to the design, development, and maintenance of internal security tools and frameworks.

  
  



• Support improvements to internal processes, methodologies, and service offerings, ensuring high-quality delivery for clients.

  
  



• Bachelor’s, Master’s, or PhD in Mathematics, Computer Science, or Information Security.

  
  



• At least 1 years of hands-on experience with blockchain technologies, including: Smart contracts (EVM chains, Solana, Move, etc.), Blockchain protocols (nodes, SDKs, Cosmos, etc.)

  
  



• Experience in threat modeling, risk assessment, and security analysis.

  
  



• Proficiency in one or more programming languages: Rust, Go, Solidity, Python, etc.

  
  



• Passion for Cryptocurrency, DeFi, and Blockchain technologies.

  
  



• Solid academic or practical background in Mathematics, Cryptography, or Cybersecurity.

  
  



• Demonstrated experience conducting audits and collaborating with leading Web3 protocols.

  
  



• Recognized achievements such as published CVEs, or strong placements in Attackathons, Bug Bounties, or Audit Contests.

  
  

Compensation

Target annual salary for this role performed in the US is $102,000 - $180,000. The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates.

CertiK accepts applications for this position on an ongoing basis. CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles.

In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire. CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.

CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements. https://www.eeoc.gov/sites/default/files/migrated\_files/employers/poster\_screen\_reader\_optimized.pdf

All CertiK employees are expected to actively support diversity on their teams, and in the Company.

Key Responsibilities

• Build and maintain production services for trading, wallet, user, market data, and admin workflows.


• Work on APIs, database models, background workers, queues, Redis/Kafka integrations, and internal service communication.


• Contribute to trading-related flows such as order creation, position tracking, margin logic, funding data, liquidations, LP/yield features, and user portfolio data.


• Write clean, testable, maintainable code following existing patterns in the codebase.


• Debug production issues, investigate logs, reproduce bugs, and support incident fixes.


• Improve reliability through better validation, error handling, monitoring, and automated tests.


• Collaborate with frontend, product, DevOps, blockchain, and senior backend engineers.


• Participate in code reviews and help improve engineering quality without overcomplicating solutions.

Requirements

• 5 years building backend or distributed systems in production.


• Significant backend development experience in Go, TypeScript/Node.js, or similar languages.


• Backend development experience working specifically on centralized/decentralized exchanges.


• Good understanding of REST APIs, service architecture, SQL databases, Redis, queues, and background jobs.


• Basic understanding of Docker, Git, CI/CD, and production deployment workflows.


• Working knowledge of distributed systems, data consistency, and service-oriented architecture.


• Comfortable working with financial/accounting-style logic where correctness matters.


• Familiarity with Kafka (or similar), Redis, and caching patterns.


• Experience writing unit tests and debugging integration issues.


• Basic understanding of cryptographic principles and key management.


• Ability to read existing code, understand system flows, and make safe incremental changes.

Nice to have

• Experience with crypto, DeFi, exchanges, perpetuals, derivatives, or market-making systems.


• Understanding of concepts like leverage, margin, liquidation, funding rates, mark price, oracle price, order books, and PnL.


• Experience with Go services, NestJS, PostgreSQL, Redpanda, React, or Solidity.


• Familiarity with wallet authentication, blockchain event crawlers, smart contract interactions, or signature-based withdrawal flows.

Success Criteria

A strong senior engineer should be able to independently own well-scoped features, fix bugs safely, write reliable code, and understand how their changes affect trading, balances, user funds, and system stability. They should not need to design the whole platform, but they should be careful, curious, and able to grow into deeper ownership of trading and risk systems.

Offering

• Competitive base salary


• Generous token vesting


• Join a rapidly growing exchange at the forefront of zero knowledge innovation