• Improve observability, reliability and availability by defining and measuring key metrics
• Build automation and improve systems to eliminate toil and operations work.
• Collaborate with our core infrastructure team to performance tune and optimize our cloud deployments. (Think Docker, Terraform, Kubernetes, EC2, etc.)
• Collaborate with Coinbase product teams to reduce service disruptions and automate incident response
• Proactively find and analyze reliability problems across our business units and stack, then design and implement software to create step-function improvements.
• Educate, mentor and hold accountable the engineering team to improve the reliability of our systems and make reliability a core value of the Coinbase engineering culture.

• You have at least 5+ years of software engineering experience
• Experience working with Object Oriented languages like Golang, Java, and or C#
• Strong skills around observability, debugging and performance tuning
• Strong communication skills and ability to explain technical concepts clearly and simply
• Strong interpersonal skills working with engineers from junior to principal levels
• Demonstrated critical thinking under pressure

• Experience designing and building reliable systems capable of handling high throughput and low latency
• Experience with observability and monitoring systems such as Kibana, Datadog, etc.
• Experience working in a highly regulated environment
• Exposure to both NoSQL and SQL database technologies such as DynamoDB, MongoDB, PostgreSQL, AWS Aurora.
• Familiarity with working in rapid growth environments
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GPIN05US

#LI-Remote

Apply Now:

Wallet in Telegram is your gateway to the world of digital currencies, specially tailored for individuals in emerging markets. We understand the complexities and intimidation often associated with existing crypto solutions, which is why we've designed the Wallet to be the ultimate user-friendly platform for managing finances. No need to open a traditional bank account or wrestle with convoluted crypto exchanges and wallets.

Leveraging the power of advanced blockchain technology, Wallet delivers a seamless onboarding experience into the crypto ecosystem. It enables users to effortlessly store, send, and receive digital currencies, all via the familiar interface of Telegram. Managing your finances becomes as simple as sending a message.

At Wallet, we're committed to using technology to disrupt traditional banking systems, providing our customers with more flexible and inclusive financial services. Whether you're a crypto novice or seeking to simplify your digital finance experience, Wallet is crafted with your needs in mind.

We are looking for a Software Engineer (Crypto Anti-Fraud Platform) to join our team and help secure high-load systems against fraudulent activities. Your main responsibility will be to create scalable, fault-tolerant, and intelligent systems to detect and prevent abuse, ensuring platform integrity and user safety.

Responsibilities:

• Design and implement antifraud logic and services in a highload environment.
• Develop scalable and fault-tolerant detection systems using behavioral signals and heuristics.
• Optimize performance of real-time fraud detection pipelines.
• Collaborate with product, data, and platform teams to prevent exploitation vectors.
• Integrate with monitoring and alerting systems for early threat detection and response.
• Contribute to the design and development of safety-critical platform features.

Requirements:

• 5+ years of experience as a Software Engineer, preferably in fintech or security-focused environments.
• Strong understanding of distributed systems and anomaly detection principles.
• Proficiency in one or more programming languages (Go, Java, C++) and willingness to use Python or Kotlin for detection logic.
• Solid knowledge of databases (SQL, NoSQL), efficient querying, and handling of high-volume event data.
• Experience with logging, monitoring, and distributed tracing in security-sensitive contexts.

Nice to Have:

• Experience building or integrating anti-fraud, abuse detection, or risk scoring systems.
• Familiarity with machine learning techniques for behavioral analysis and anomaly detection.
• Experience with containerized environments and orchestration tools (Kubernetes, Docker).
• Understanding of crypto wallets, smart contracts, and blockchain-based attack vectors.

Why it is a fantastic opportunity:

• Our business is growing at an exponential scale.
• Work in a well-funded startup environment with unique growth opportunities and a chance to join a rapidly growing company with a unique product.
• Be based remotely.
• Participation in the performance review and bonus programme.
• Compensation for medical expenses.
• Provision of necessary equipment.
• Annual vacation of 20 working days plus 11 paid days off.
• 14 days of paid sick leave to support your health and recovery when needed.
• Access to internal English courses for continuous learning and improvement in language skills.

Apply Now:

Coinbase is seeking a software engineer to join our team to build new features that improve existing products like Coinbase.com, Prime, Wallet, etc. You will solve unique, large scale, highly complex technical problems. You will help build the next generation of systems to make cryptocurrency accessible to everyone across the globe (www, iOS, Android), operating real-time applications with high frequency, low latency updates, keeping the platform safe from fraud, enabling delightful experiences, and managing the most secure, dockerized infrastructure running in the cloud.

What you’ll be doing (ie. job duties):

• Work with engineers, designers, product managers and leadership to turn our product and technical vision into a tangible roadmap every quarter
• Write high quality, well tested code to meet the needs of your customers

What we look for in you (ie. job requirements):

• Available to begin employment immediately.
• 1+ years experience in software engineering/development.
• You write high quality, well tested code to meet the needs of your customers.
• You're excited about hard problems and getting things done.
• You are self-motivated and committed to personal growth.
• You approach problems with positive energy.
• Degree or certificate in Computer Science, Software Engineering, Computer Engineering, Electrical Engineering, Mathematics or equivalent work experience.

Nice to haves:

• You’ve worked on either backend or frontend teams using Golang, MongoDB, AWS, Docker, Postgres, Ruby, Rails or React Native.
• You're passionate about blockchain, crypto, and building an open financial system that brings the world together.

ID: G2727

Apply Now:

DMarket, recently acquired by Mythical Games, makes the secure purchase and trade of virtual items possible through our blockchain-enabled marketplace. Mythical Games is a Venture-backed game technology company powering the next generation of players, games, and studios.  Our goal is to launch exceptional video games that leverage distributed ledger tech while also providing a platform that will allow other game developers to do the same. At Mythical Games, we are proud of our ‘People First’ culture. We believe that it takes great people and culture to make great products.  By treating each other with empathy and respect, we can live fulfilling lives outside of our jobs while also creating exceptional work.We are looking for a talented Frontend Developer with marketplace building experience to develop the DMarket. With us, you will have the unique ability to join a friendly team of tech professionals who have been writing efficient and scalable Angular code for years. This is the chance to develop a complex and interesting global product using the latest Angular version. Responsibilities:

Write performant and scalable code Lead technical research Do performance optimizations Complete the most complex Frontend tasks Develop Angular architecture Plan and decompose task completion Mentor middle/junior Frontend developers

Requirements and skills:

5-6 years of overall experience in web 4-5 years of developing Angular applications Experience with high-loaded Angular SSR, SSG applications, deep JS/TS knowledge Experience with GCP, K8S, Buckets Experience with Node.js Experience with SEO Experience with Analytics Google GTM or Snowplow Experience with NX Experience as an HTML/CSS developer Experience as a backend developer is a plus Experience as a team/tech lead is a plus Interest in Blockchain technologies and gaming is a plus Technical skills: Data Structures, Algorithms, OOP, SOLID, GRASP, CSS/SCSS/HTML/Tailwind, REST, RXJS, Signals, WS, state management libraries(SignalStore,Tanctask Query), SEO principles, CI/CD tools, Jest, Grafana, Docker, NGINX, Redis, PWA

Nice to Have:

Interest in the gaming industry

Location: Ukraine; Remote Work Hiring process: ✅Intro call with a Recruiter → ✅Technical Interview → ✅Final Interview → ✅Reference Check → ✅Offer We offer:

Team of like-minded professionals who understand your game passion; Work in an international product company - Mythical Games is the resident of Diia City; Competitive financial reward; Health care starting on your first working day; 22 paid vacation days, paid sick leaves and other personal days in accordance with the company's internal policies; Flexible working hours; Referral bonuses; Financial support and PTO in case of special occasions governed by the internal policies of the company. Our team values diversity and believes that it strengthens our games, products, and communities.  We strongly encourage POC, folks with disabilities, those belonging to the LGBTQIA+ communities, and people across all gender to apply.  If you need assistance with accommodations due to a disability, please reach out to email. We’ll be with you as soon as possible; our goal is to ensure an accessible and equitable interview process.

Apply Now:

STON.fi is a decentralized exchange (DEX) built on TON Blockchain smart contracts, enhanced with advantages such as low fees, low slippage, super user-friendly interface and direct integration with the TON wallet.

STON.fi:

• implements one of the main features of cryptocurrencies — it facilitates financial transactions without any involvement of banks, brokers or any other traditional intermediaries;
• utilizes the TON blockchain and is a natural part of TON DeFi’s growing suite of tools that make a huge range of financial services available directly from the TON cryptocurrency wallet.

We are looking for a new frontend team member who will be immersed in the process of working with TON Blockchain and its unique features; will help the present team in bringing new complicated business scenarios to life and upgrading the current application. That is a very interesting role because you will deal with new standards of the blockchain that emerge every month while developing the app that is already live and has a very big userbase - so naturally there are a lot of challenges for engineers to jump into.

What you’ll do:

• Immerse in the context of business requirements and operation of the application scenarios; communicate in an open community of users and partner developers.
• Produce typescript code that is easy to read, testable, supported, and framework independent.
• Be responsible for a critical functionality that influences people a lot.
• Build interfaces with mobile first approach and accurately following the design requirements.
• Write unit test using vitest, e2e and integration tests using cypress.
• Optimize application performance: deal with profiling, analysis and reduction of problem spots, refactoring.

Requirements:

• Strong knowledge of javascript (ES6+), typescript.
• Ability to make adaptive interfaces using css/sass.
• Expertise with the react framework and its ecosystem.
• Location that is close to CET timezone, as that's where most of the team is and most of the work is getting done.

Bonus Skills:

• Experience with frameworks other than React.
• Expertise with themization and localization implementation.
• Experience in developing and supporting CI/CD workflows with gitlab and docker as well as maintaining versioned application releases.

Our stack:

• Frontend:
  • react@18 (react@19 migration in plans).
  • react-router (currently - library mode. framework mode or @tanstack/router migration in plans).
  • @tanstack/react-query.
  • @tonconnect/ui.
  • @radix-ui.
  • tailwindcss.

• Toolchain:
  • pnpm.
  • tsup / vite (depends on package scale).
  • vitest.
  • biome (formatter only).
  • eslint.

If you feel that’s a role for you - fill in the application and let’s meet!

Apply Now:

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

The Consumer Product Group engineers strive to make the Coinbase retail app the easiest-to-use and fastest experience for accessing the crypto. In 2023, our goal is to be the #1 self custody wallet measured by MTU’s and download share. Wallet is the future of web3 and of Coinbase. Suite of products include: Coinbase app, advance trade, dapps, and staking.

What you'll be doing:

• Decompose our monolithic Rails app into microservices
• Articulate a long term vision for maintaining and scaling our backend systems.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers

What we look for in you:

• You have at least 2+ years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have gone through a rapid growth in your company (from startup to mid-size).
• You’ve build growth experiments or A/B tests.
• You have experience with Blockchains (such as Bitcoin, Ethereum etc..)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Golang, Ruby, Docker, Sinatra, Rails, Postgres, MongoDB or Redshift.
• You’ve built financial, high reliability or security systems.
• You have Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCBE04US

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

#LI-Remote

Apply Now:

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

The Platform Product Group’s mission is to build a trusted, scalable, and compliant platform to maximize velocity, efficiency and quality. They build the foundations that can be used by multiple products and teams at Coinbase so that users can have a consistent and high-quality experience. There are many teams that make up the Platform Product Group. We are currently hiring backend engineers to join our pods within our Identity, FinHub and Payments teams.

What you'll be doing:

• Build new services to meet critical product and business needs using Golang.
• Design scalable systems to solve novel problems with modern cloud technology and industry best practices.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

What we look for in you:

• You have at least 2+ years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have gone through a rapid growth in your company (from startup to mid-size).
• You have experience with Blockchains (such as Bitcoin, Ethereum etc.)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Golang, Ruby, Docker, Sinatra, Rails, Postgres, MongoDB or Redshift.
• You’ve built financial, high reliability or security systems.
• You have Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GPBE04US

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

#LI-Remote

Apply Now:

This role is for one of the Weekday's clients

Location: Remote (India)

JobType: full-time

What You’ll Do

• Take ownership of the quality, reliability, and availability of code being shipped.
• Oversee day-to-day operations and maintain comprehensive documentation of production features.
• Develop product features from scratch, adhering to technical standards set by the Technology Lead.
• Write clean, maintainable, and scalable code that complies with development policies.
• Participate in on-call incident response on a rotational basis, including after-hours and weekends.
• Collaborate with the Technology Head to define product architecture and document technical decisions.
• Contribute to product meetings, providing insights on architecture, design, and feature development.
• Bridge the gap between documentation and development by providing weekly feedback to the Research & Analysis team.
• Mentor and manage junior developers and interns.

What Makes You a Good Fit

• Strong expertise in blockchain technologies, including decentralized computing, DLTs, and decentralized applications.
• Proficient in JavaScript, TypeScript, and frameworks such as React, Angular, and Node.js.
• Experience with client-server architecture and development using client-side JavaScript frameworks (React Native, React.js).
• In-depth knowledge of Bitcoin, Ethereum (EVM), and other blockchain networks.
• Hands-on experience working with RESTful APIs.
• Solid understanding of data structures, algorithms, and design patterns.
• Experience coding in Solidity for smart contract development.
• Familiarity with blockchain development frameworks such as Truffle & Hardhat.
• Proficiency in NoSQL databases (MongoDB) and experience with GraphQL queries is a plus.
• Strong debugging and issue-resolution skills for frontend and backend solutions.
• Understanding of containerization tools like Docker and Kubernetes, and CI/CD pipelines.
• Experience working with cloud platforms like AWS, GCP, and keeping up with the latest trends in blockchain development.
• Knowledge of monolithic and microservices architectures.
• Proficient with Git for version control.
• Familiarity with testing frameworks such as Jest, Mocha, Chai, Karma, or Enzyme is a plus.
• Experience in writing reusable libraries.
• Contributions to open-source blockchain projects will be an added advantage.

Apply Now:

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

What you’ll be doing (ie. job duties):

• Work with engineers, designers, product managers and leadership to turn our product and technical vision into a tangible roadmap every quarter
• Write high quality, well tested code to meet the needs of your customers

What we look for in you (ie. job requirements):

• Available to begin employment immediately
• 1+ years experience in software engineering/development
• You write high quality, well tested code to meet the needs of your customers
• You're excited about hard problems and getting things done
• You are self-motivated and committed to personal growth
• You approach problems with positive energy
• Degree or certificate in Computer Science, Software Engineering, Computer Engineering, Electrical Engineering, Mathematics or equivalent work experience

Nice to haves:

• You’ve worked on either backend or frontend teams using Golang, MongoDB, AWS, Docker, Postgres, Ruby, Rails or React Native
• You're passionate about blockchain, crypto, and building an open financial system that brings the world together

ID: G2443

Apply Now:

About Paxos  Today’s financial infrastructure is archaic, expensive, inefficient and risky — supporting a system that leaves out more people than it lets in. So we’re rebuilding it. We’re on a mission to open the world’s financial system to everyone by enabling the instant movement of any asset, any time, in a trustworthy way. For over a decade, we’ve built blockchain infrastructure that tokenizes, custodies, trades and settles assets for the world’s leading financial institutions, like PayPal, Venmo, Mastercard and Interactive Brokers.  About the team The Brokerage team at Paxos enables partners to offer seamless crypto trading and custody through a fully regulated, scalable platform. We power some of the largest fintechs and enterprises, allowing them to integrate crypto services without the complexity of building and managing their own infrastructure. About the role  As a Staff Software Engineer on the Brokerage Engineering team at Paxos, you will play a pivotal role in designing, building, and maintaining high-performance, scalable, and secure crypto brokerage solutions. You will work on mission-critical systems that power billions of dollars in trading volume, ensuring top-tier broker-dealers have access to the most reliable and efficient trading infrastructure. In this role, you will bring deep technical expertise to architect and optimize complex distributed systems, make key technical decisions, and solve challenging engineering problems. You will collaborate closely with cross-functional teams, including Product, Growth, and other Engineering teams, to deliver innovative solutions that drive Paxos' market leadership in crypto brokerage. If you thrive in a fast-paced, high-impact environment and are passionate about building world-class financial infrastructure, we’d love to hear from you. What you’ll do 

Own the full software development lifecycle: Design, develop, test, and deploy high-performance, scalable brokerage solutions, ensuring reliability and efficiency for mission-critical financial systems. Tackle complex technical challenges: Break down ambiguous and intricate requirements into actionable technical tasks, making data-driven decisions to optimize performance, security, and scalability. Balance trade-offs effectively: Navigate key engineering trade-offs, ensuring the right balance between MVP vs. enterprise-grade, time-to-market vs. long-term scalability, and other critical factors. Collaborate across teams: Work closely with Product, Growth, and other Engineering teams to align technical solutions with business objectives and customer needs. Contribute to the future of brokerage at Paxos: Play a key role in shaping the next generation of crypto brokerage solutions, ensuring they meet the highest industry standards for performance, security, and availability.

About you

7+ years of software development experience, with proficiency in at least one of the following languages: Golang (preferred), Kotlin, Java, Python. Strong computer science fundamentals, including data structures, algorithms, and distributed system design. Familiarity with cloud-native infrastructure and tools, such as Kubernetes, Docker, Kafka, and AWS services. Ability to write high-quality, maintainable, and well-documented code. Strong problem-solving skills and a keen ability to troubleshoot complex technical issues. Effective collaboration and communication skills, with the ability to work closely with cross-functional teams. Experience building Compliance solutions (KYC, KYB, KYT) or onboarding or identity platforms is a huge plus.  A passion for learning and applying new technologies to solve real-world problems.

Important Notice for Paxos Applicants We’ve become aware of fraudulent accounts posting as Paxos recruiters on LinkedIn and other platforms. These scammers attempt to deceive applicants into paying for job opportunities or providing personal financial information.  To verify a legitimate Paxos recruiter: 

We only use @paxos.com email addresses We never ask for payment or financial details to apply, interview, or work here For technical roles, we do not perform a coding interview without prior screening by our engineering team 

Thanks for your interest in Paxos!  Pay and benefits

Apply Now:

The Institutional product group enables the foundations of Coinbase's institutional business supporting thousands of large financial institutions. We enable institutions to custody their digital assets and participate in the crypto economy in a secure and safe way. We take pride in building a scalable & secure crypto platform supporting hundreds of assets and enabling crypto participation with staking, governance and web3 gateways. The team has interesting work on building cutting-edge crypto technologies, scalable infrastructure and UI surfaces across web, mobile and browser extensions in a fast-paced industry with an opportunity to build several new initiatives

The Institutional Staking Engineering team is responsible for building and maintaining the systems required to safely manage billions of dollars of staked digital assets across multiple blockchain networks. Staking is an integral part of the Custody experience because it allows customers to earn a yield on their digital assets. The Institutional Staking Engineering team also plays an important role in helping to secure underlying blockchain networks by unlocking billions of dollars worth of assets for staking that would otherwise remain unstaked on the sideline. These additional funds contribute to security of networks by increasing the costs of 51% attacks and increasing the diversity and decentralization of validators.

What you'll be doing:

• Articulate a long term vision for maintaining and scaling our backend systems.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers

What we look for in you:

• You have at least 2+ years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have gone through a rapid growth in your company (from startup to mid-size).
• You’ve build growth experiments or A/B tests.
• You have experience with Blockchains (such as Bitcoin, Ethereum etc..)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Golang, Ruby, Docker, Sinatra, Rails, Postgres, MongoDB or Redshift.
• You’ve built financial, high reliability or security systems.
• You have Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GIBE04US

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

#LI-Remote

Apply Now:

As stewards of the Polkadot and Substrate ecosystem, Parity is laying the foundation for a better web which respects the freedom and data of individuals and empowers developers to create better services through decentralised technology. The internet is too important to billions of people for it to be at the mercy of a few powerful companies. 

With a remote-first, global team, Parity is building open-source technologies for developers and organisations to implement and build upon. Our Web3 tech stack includes Polkadot, Substrate, and Kusama.

We believe in a decentralised web that respects the freedom and data of individuals and empowers developers to create better services. Our vision is to create a world based on truthful, rather than trustful, interactions. Our mission is to make Polkadot the most active and innovative community in blockchain.

People in our collective are:

• Highly motivated to contribute to Parity’s mission and be part of something bigger

• Excited to work on projects that are groundbreaking and complex

• Autonomous workers that self-initiate, but also collaborate well with others

• Taking maximum accountability and having minimum ego at work

• Comfortable with chaos and adapting to the ever-changing Web3 space

• Continuously educating themselves about Parity and the wider ecosystem

About the team:

At Parity Technologies, we’re redefining the way the world interacts with Polkadot.. Our greenfield Mobile App team’s mission? To build the most seamless, secure, and cutting-edge digital wallet experience for both web and native platforms. If you’re a developer who thrives on innovation, enjoys pushing boundaries, and wants to shape the future of decentralized finance, read on:

About the position:

Picture this: You’re leading the charge in crafting a next-gen digital wallet—one that’s intuitive, secure, and lightning-fast. This isn’t just another app; it’s the gateway for users to interact with Polkadot and the decentralised world beyond.

• Architect & Build – You’ll design and develop a fluid, high-performance mobile and web wallet that empowers users to manage crypto assets effortlessly.

• Bridge Web2 and Web3 – Your work will ensure a seamless transition between traditional fintech experiences and decentralised technologies.

• Innovate & Optimise – Tackle challenges like gas fee optimisations, cross-chain transactions, and zero-trust security models.

• Create Beautiful UX – Work alongside designers to build smooth, intuitive interfaces that make crypto adoption easy for everyone.

• Stay Cutting-Edge – Implement the latest blockchain SDKs, cryptographic security measures, and real-time transaction tracking.

• Collaborate Globally – Work with engineers, product managers, and the wider blockchain community to push the limits of what’s possible.

About you:

You’ll be working with

• Frontend: React Native, TypeScript, React (for web wallet)

• Mobile: Swift (iOS), Kotlin (Android)

• Backend: Node.js, GraphQL, Firebase, Go (occasionally)

• Security: End-to-end encryption, Secure Enclave, biometric authentication

• DevOps: Docker, Kubernetes, CI/CD pipelines

Who You Are

• A mobile/web developer with a passion for Web3, DeFi, or crypto applications.

• Comfortable building for both native (iOS/Android) and web platforms

• Excited to solve complex problems in scalability, UX, and decentralised technologies.

Nice To Have

• Familiar with wallet security, cryptography, and blockchain interactions.

• Blockchain: Substrate, Polkadot.js, Ethereum Web3.js, Rust (for deeper blockchain integrations)

About working for us:

• Competitive remuneration packages based on iterative market research, including tokens (where legally possible)

• “Future of work” environment that’s remote-first and self-initiating with flexible hours

• Team mates that are genuinely excited about their impact and projects

• Access to the brightest minds in this space to learn about Web3 and develop your skills and knowledge while on the job

• Becoming part of the wider ecosystem (career and networking opportunities)

• Team and company-wide retreats

• Work laptop

Those joining our collective as an employee in Germany, Portugal, Switzerland and the U.K. also enjoy benefits such as health care, parental leave, PTO (28 days per year), local team events, yearly L&D budget, and language classes.

Parity is an Equal Opportunity Employer. We welcome diversity in our global team and care about everyone in our collective feeling included and welcome.

View our Applicant Notice to see how we use your data. 

Is this position not quite your match? Browse our other open roles.

Apply Now:

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

The Consumer Product Group engineers strive to make the Coinbase retail app the easiest-to-use and fastest experience for accessing the crypto. In 2024, our goal is to be the #1 self custody wallet measured by MTU’s and download share. Wallet is the future of web3 and of Coinbase. Suite of products include: Coinbase app, advance trade, dapps, and staking.

What you'll be doing:

• Build new services to meet critical product and business needs using Golang.
• Design scalable systems to solve novel problems with modern cloud technology and industry best practices.
• Articulate a long term vision for maintaining and scaling our backend systems and the teams running them.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

What we look for in you:

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

Nice to haves:

• You have gone through a rapid growth in your company (from startup to mid-size).
• Experience with growth experiments or A/B testing frameworks.
• You have experience with Blockchain technology (such as Bitcoin, Ethereum etc..)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Golang, Ruby, Docker, Rails, Postgres, MongoDB or DynamoDB.
• You’ve built financial, high reliability or security systems.
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCBE05US

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

#LI-Remote

Apply Now:

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

The Institutional product group enables the foundations of Coinbase's institutional business supporting thousands of large financial institutions. We enable institutions to custody their digital assets and participate in the crypto economy in a secure and safe way. We take pride in building a scalable & secure crypto platform supporting hundreds of assets and enabling crypto participation with staking, governance and web3 gateways. The team has interesting work on building cutting-edge crypto technologies, scalable infrastructure and UI surfaces across web, mobile and browser extensions in a fast-paced industry with an opportunity to build several new initiatives

What you'll be doing:

• Decompose our monolithic Rails app into microservices
• Articulate a long term vision for maintaining and scaling our backend systems.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers

What we look for in you:

• You have at least 2+ years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have gone through a rapid growth in your company (from startup to mid-size).
• You’ve build growth experiments or A/B tests.
• You have experience with Blockchains (such as Bitcoin, Ethereum etc..)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Golang, Ruby, Docker, Sinatra, Rails, Postgres, MongoDB or Redshift.
• You’ve built financial, high reliability or security systems.
• You have Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GIBE04US

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

#LI-Remote

Apply Now:

Coinbase is seeking Senior Backend Engineers to join our teams within the Platform Product Group. The Platform Product Group’s mission is to build a trusted, scalable, and compliant platform to maximize velocity, efficiency and quality. They build the foundations that can be used by multiple products and teams at Coinbase so that users can have a consistent and high-quality experience. We are currently hiring for senior level contributors for our Finhubteams.

What you'll be doing:

• Build new services to meet critical product and business needs using Golang.
• Design scalable systems to solve novel problems with modern cloud technology and industry best practices.
• Articulate a long term vision for maintaining and scaling our backend systems and the teams running them.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

What we look for in you:

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

Nice to haves:

• You have gone through a rapid growth in your company (from startup to mid-size).
• Experience with growth experiments or A/B testing frameworks.
• You have experience with Blockchain technology (such as Bitcoin, Ethereum etc..)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Golang, Ruby, Docker, Rails, Postgres, MongoDB or DynamoDB.
• You’ve built financial, high reliability or security systems.
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GPBE05US

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

#LI-Remote

Apply Now:

The Institutional team enables the foundations of Coinbase's institutional business supporting thousands of large financial institutions. We enable institutions to custody their digital assets and participate in the crypto economy in a secure and safe way. We take pride in building a scalable & secure crypto platform supporting hundreds of assets and enabling crypto participation with staking, governance and web3 gateways. The team has interesting work on building cutting-edge crypto technologies, scalable infrastructure and UI surfaces across web, mobile and browser extensions in a fast-paced industry with an opportunity to build several new initiatives.

The Markets team within the Institutional Product Group is dedicated to creating top-tier Exchange platforms, offering unparalleled low latency and high performance in the crypto trading space. As a Staff Software Engineer on the Markets team, you’ll be instrumental in developing and sustaining the core technology that drives our platforms. Collaborating with a talented group of engineers and product managers, you’ll deliver institutional-grade systems that empower high-value customers to trade with unmatched speed and efficiency. This role presents the opportunity to tackle complex, unique challenges, bridging the demands of large-scale applications with the precision required for low-latency trading systems. You'll be at the forefront of designing, building, and executing solutions for some of the most impactful and challenging problems in the industry.

What you’ll be doing (ie. job duties):

• Architect and implement core trading platform components responsible for connectivity, market data, trade execution, clearing and settlement using Java, Golang and similar technologies
• Design scalable, low latency, garbage free systems to solve novel problems with modern cloud technology and industry best practices.
• Articulate a long term vision for maintaining and scaling our core trading systems and the teams running them.
• Work with engineers, product managers, designers, and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.
• Mentor team members and help uplift the technical bar across the team

What we look for in you:

• 8+ years of experience in backend software engineering using Java, Golang or similar languages
• You’ve designed, built, scaled and maintained high volume and low latency production services
• You’ve experience in architecting and developing solutions to ambiguous problems with significant impact
• Passion for building an open financial system that brings the world together

Nice to haves:

• You have built order management, risk or matching engines that have high volume and low latency characteristics
• Demonstrated experience working with complex distributed systems at scale
• You are familiar with developing event driven architectures, GC free coding approaches, performance tuning of OS and networking stacks
• Knowledge of AWS infrastructure and tools, as well as containerization technologies like Docker and orchestration platforms like Kubernetes
• You have gone through a rapid growth in your company (from startup to mid-size).
• You have experience with Blockchain technology (such as Bitcoin, Ethereum etc..)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Java, Golang, Docker, Postgres, Container Orchestration systems and AWS based technologies.
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GIBE06US

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

#LI-Remote

Apply Now:

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

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

What you'll be doing:

• Architect and develop distributed systems
• Provide technical structure to teams and work closely with management and stakeholders to define strategic roadmaps
• Manage individual projects priorities, deadlines and deliverables with your technical expertise
• Mentor and train other team members on design techniques and coding standards
• Design and implement foundational infrastructure components used by every engineering team in production (e.g. notifications service, deferred deep-linking, SEO services, etc…)
• Write high quality, well tested code to meet the needs of your customers

What we look for in you:

• You have at least 8+ years of experience in software engineering.
• You’ve experienced architecting and developing solutions to ambiguous problems with significant impact
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have experience launching new products from 0 to 1
• Experience with growth experiments or A/B testing frameworks.
• You have experience with Blockchain technology (such as Bitcoin, Ethereum etc..)
• You’ve worked with Golang, Ruby, Docker, Rails, Postgres, MongoDB or DynamoDB.
• You’ve built fintech, highly reliable and/or secure systems.
• Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCBE06US

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

#LI-Remote

Apply Now:

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

The Platform Product Group’s mission is to build a trusted, scalable, and compliant platform to maximize velocity, efficiency and quality. They build the foundations that can be used by multiple products and teams at Coinbase so that users can have a consistent and high-quality experience. There are many teams that make up the Platform Product Group. We are currently hiring backend engineers to join our pods within our Identity, FinHub and Payments teams.

What you'll be doing:

• Build new services to meet critical product and business needs using Golang.
• Design scalable systems to solve novel problems with modern cloud technology and industry best practices.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers.

What we look for in you:

• You have at least 2+ years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have gone through a rapid growth in your company (from startup to mid-size).
• You have experience with Blockchains (such as Bitcoin, Ethereum etc.)
• You have experience decomposing a large monolith into microservices.
• You’ve worked with Golang, Ruby, Docker, Sinatra, Rails, Postgres, MongoDB or Redshift.
• You’ve built financial, high reliability or security systems.
• You have Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GPBE04US

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

#LI-Remote

Apply Now:

GR8 Tech is a global product company that provides innovative, scalable platforms and business solutions for the iGaming industry. We have а great experience: GR8 Tech platform successfully handles millions of active players and offers best practices to develop and grow in the gambling industry. We are here to provide great gaming tech to satisfy even greater ambition! We develop complete tech coverage for gambling businesses worldwide, including iGaming platform solutions, consulting, integration, and long-lasting operation services. We are driven by our ambition to make a great product with great people! Together we move the world of iGaming forward — join!About your key responsibilities and impact:

Designing, developing, and maintaining .NET applications, ensuring high-quality software solutions; Working independently or in a team, adhering to coding standards and best practices; Mentoring junior developers and participating in technical discussions; Improving software development processes and ensuring system resilience; Eliciting, analyzing, and documenting software requirements from stakeholders; Implementing observability and monitoring through logging and instrumentation.

Essential professional experience: System Analysis and Design:

Understanding microservice and monolith architectures, their advantages, and drawbacks; Ability to design event-driven systems and resilient architectures; Familiarity with architectural patterns, resilience strategies, and designing for failure; Strong analytical skills in gathering and documenting software requirements; Understanding of functional and non-functional requirements; Knowledge of connection pooling, rate-limiter, circuit breaker, and bulkhead patterns.

Database Management:

Understanding relational and non-relational databases (key-value and object-oriented); Proficiency in writing SQL queries and designing relational database models; Knowledge of normalization/de-normalization strategies and primary/foreign key relationships; Familiarity with database security best practices (access controls, encryption, SQL injection prevention).

Hard Skills:

C# Programming: Strong knowledge of object-oriented design, LINQ, asynchronous programming, dependency injection, and .NET framework libraries; Web API Development: Proficiency in ASP.NET Core for architecting scalable RESTful services, performance optimization, and cloud integrations; Database Expertise: Advanced SQL optimization, schema design, performance tuning, indexing strategies, and PostgreSQL; Message Brokers: Experience with Kafka, including architecture, producer/consumer APIs, and stream processing in microservices; Debugging & Optimization: Advanced skills in profiling, identifying, and resolving performance bottlenecks; Unit Testing & TDD: Experience with xUnit and test-driven development to ensure code quality; Microservices Architecture: Proficiency in ASP.NET Core, Docker, Kubernetes, and applying patterns like service discovery, circuit breakers, event sourcing, and CQRS; Observability & Monitoring: Implementing logging, instrumentation, and monitoring tools like Serilog for system health and troubleshooting.   What we offer: Benefits Cafeteria:

Sports compensation; Medical coverage; Psychological support; Home-office coverage.

Work-life:

Remote work, Coworking compensation; Childcare budget; Maternity leave; Paternity leave; Additional 2 days for family events.

Our GR8 Culture:

Open feedback and transparent direct communications; Growth and development: better every day; High tolerance to experiment and mistakes; Supportive friendly environment.

    Data Protection Information regarding the processing of your personal data in connection with the recruitment and selection process can be found in the Candidate Privacy Notice at https://gr8.tech/candidate-privacy-notice/.

Apply Now:

About CoW DAO

CoW DAO is on a mission to protect Ethereum users from the dangers of DeFi. It does this by supporting the development of CoW Protocol, CoW Swap, MEV Blocker, and CoW AMM, and by funding values-aligned projects through the CoW Grants Program.

CoW Protocol is the second-largest DEX aggregator by monthly volume and the first-largest intents-based exchange. MEV Blocker is currently involved in ~4% of all Ethereum transactions, making it the category leader. CoW AMM is the only live AMM that protects LPs from LVR (loss-versus rebalancing).

As a member of CoW DAO’s core team, you will have the opportunity to shape these essential products, and contribute to the Ethereum ecosystem more broadly.

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 need a DevOps Engineer who’s hungry for impact, loves building things from scratch, and enjoys keeping critical infrastructure running like a well-oiled machine. You’ll be working with a team that values autonomy, ownership, and a growth mindset—if that sounds like you, keep reading! 🚀

What You’ll Do

• Keep things running smoothly – You’ll build, maintain, and optimize our Kubernetes workloads while ensuring scalable, resilient cloud infrastructure using Infrastructure-as-Code
• Build cool stuff – Automate deployments, reduce tech debt, and optimize AWS costs to improve infrastructure efficiency
• Shape the future of DevOps at CoW – Drive CI/CD workflow standards, contribute to platform architecture & security, and enhance on-call and postmortem processes to foster a strong DevOps culture
• Strengthen our blockchain infrastructure – Deploy and manage Ethereum nodes & validators, establish SLAs, and ensure high availability across our network
• Teach and share – We love knowledge sharing! Be ready to collaborate, mentor, and even lead a small presentation for the team
• Automate and optimize – Modify and extend Pulumi configurations for AWS, fine-tune deployments, and continuously improve alerting solutions
• Enhance observability & security – Improve logging architecture, security measures, and database health to ensure reliable infrastructure performance
• Our DevOps Stack: AWS, Kubernetes, Pulumi, Flux, Ansible, OpenSearch, Nginx, Prometheus, Grafana, Docker and Linux
• Blockchain Nodes: Erigon, Reth, Nitro

Who You Are

• Kubernetes Mastery – You’ve deployed and maintained production-grade K8s clusters before
• Cloud & DevOps Expertise – Strong experience with AWS, CI/CD, Docker, and Linux
• Blockchain Expertise? Experience running Ethereum nodes (or other blockchain infra) is needed
• On-Call Ready – You’re comfortable handling incidents and making sure things don’t break (or fixing them fast if they do!)
• Monitoring Pro – You know your way around Prometheus, Grafana, and Elasticsearch
• Database Knowledge – We use Postgres, but any database experience is a plus
• Coding Background – You’ve written production-level code in Python, Go, Rust, or similar for at least 1-2 years
• Team Player & Communicator – We’re a remote team, so documentation, knowledge sharing, and collaboration are key

What We Can Offer You

• Impact & Ownership – Your work will directly shape the future of DeFi.
• Flexibility – Remote-friendly with the option to join our Lisbon hub
• Token Plan – Be part of our mission and shape the future of CoW DAO
• Team Gatherings – Regular meetups & off-sites retreats to connect IRL.
• Well-being Learning Budget – We support your growth, mental health, active life style
• Hardware Budget – Get the setup you need to Moo 🐮

Ready to Join the Herd?

Hit that apply button and let’s chat! 🚀

Culture

Life within the CoW Protocol 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 Protocol, 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.

Blockchain.com is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for software engineers from a variety of technical backgrounds with a proven track record in building scalable, reliable and performant systems. You will play a critical role in building financial and crypto-native products, services and APIs. As a Senior Full-Stack Developer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices. WHAT YOU WILL DO:

Design, develop, and maintain scalable backend services and APIs. Build dynamic, user-friendly frontends using modern frameworks like React. Work closely with design and product teams to ensure seamless integration of user-facing and server-side features. Collaborate on system architecture and design decisions, emphasizing security, performance, and scalability. Implement automated testing across the stack to ensure high-quality deliverables. Optimize applications for performance and scalability in both backend and frontend layers. Write clean, reusable, and efficient code while adhering to best practices.

WHAT YOU WILL NEED:

Strong backend expertise in Kotlin or Java Solid understanding of databases (PostgreSQL, MySQL) Understanding of system design principles and scalable architectures Proficiency in frontend technologies like React Experience with event-driven architectures (e.g., Kafka, RabbitMQ). Strong problem-solving skills and ability to debug complex systems.

NICE TO HAVE:

Experience with cloud platforms like GCP, AWS or Azure Knowledge of blockchain technologies or financial systems. Skills in performance optimization on both client and server sides. Familiarity with Docker and CI/CD tools.

COMPENSATION & PERKS

Competitive full-time salary based on experience and meaningful equity in an industry-leading company The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an exciting, emerging industry. Performance-based bonuses Apple equipment provided by the company Hybrid role from our office in Palermo, Buenos Aires.

Blockchain is committed to diversity and inclusion in the workplace and is proud to be an equal opportunity employer. We prohibit discrimination and harassment of any kind based on race, religion, color, national origin, gender, gender expression, sex, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, and apprenticeship. Blockchain makes hiring decisions based solely on qualifications, merit, and business needs at the time. You may contact our Data Protection Officer by email at email. Your personal data will be processed for the purposes of managing Controller’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results thereto, and as is otherwise needed in the recruitment and hiring processes. Such processing is legally permissible under Art. 6(1)(f) of Regulation (EU) 2016/679 (General Data Protection Regulation) as necessary for the purposes of the legitimate interests pursued by the Controller, which are the solicitation, evaluation, and selection of applicants for employment. Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by Controller to help manage its recruitment and hiring process on Controller’s behalf.  Accordingly, if you are located outside of the United States, your personal data will be transferred to the United States once you submit it through this site. Because the European Union Commission has determined that United States data privacy laws do not ensure an adequate level of protection for personal data collected from EU data subjects, the transfer will be subject to appropriate additional safeguards under the standard contractual clauses.  Your personal data will be retained by Controller as long as Controller determines it is necessary to evaluate your application for employment.  Under the GDPR, you have the right to request access to your personal data, to request that your personal data be rectified or erased, and to request that processing of your personal data be restricted. You also have the right to data portability. In addition, you may lodge a complaint with an EU supervisory authority.  

Apply Now:

Blockchain.com is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time We are looking for Software Engineers from a variety of technical backgrounds with a proven track record in building scalable, reliable and performant systems. You will play a critical role in building financial and crypto-native products, services and APIs. As a Senior Back-End Engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices. WHAT YOU WILL DO:

Design, develop, and maintain scalable backend services using Kotlin & Java Build and optimize APIs for seamless integration with front-end and third-party systems. Work with relational and NoSQL databases to manage and process large-scale data efficiently. Implement and maintain CI/CD pipelines for smooth deployment and testing processes. Collaborate with cross-functional teams to deliver secure, high-quality, and user-centric solutions. Conduct code reviews and mentor junior developers to foster a culture of continuous improvement. Work closely with design and product teams to ensure seamless integration of user-facing and server-side features.

WHAT YOU WILL NEED:

Proficiency in Java or Kotlin Strong knowledge of microservices architecture, API design, and database systems (PostgreSQL, MySQL) Understanding of system design principles and scalable architectures Familiarity with Docker and CI/CD tools. Experience with event-driven architectures (e.g., Kafka, RabbitMQ). Strong problem-solving skills, attention to detail, and a commitment to code quality.

NICE TO HAVE:

Experience with cloud platforms like GCP, AWS or Azure Knowledge of blockchain technologies or financial systems. Proficiency in frontend technologies like React

COMPENSATION & PERKS

Competitive full-time salary based on experience and meaningful equity in an industry-leading company Awesome office location in the heart of Paris - working 3 days in the office is mandatory Work from Anywhere policy The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an exciting, emerging industry Unlimited vacation policy; work hard and take time when you need it Performance-based bonuses paid in cash Apple equipment provided by the company

Blockchain is committed to diversity and inclusion in the workplace and is proud to be an equal opportunity employer. We prohibit discrimination and harassment of any kind based on race, religion, color, national origin, gender, gender expression, sex, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, and apprenticeship. Blockchain makes hiring decisions based solely on qualifications, merit, and business needs at the time. You may contact our Data Protection Officer by email at email. Your personal data will be processed for the purposes of managing Controller’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results thereto, and as is otherwise needed in the recruitment and hiring processes. Such processing is legally permissible under Art. 6(1)(f) of Regulation (EU) 2016/679 (General Data Protection Regulation) as necessary for the purposes of the legitimate interests pursued by the Controller, which are the solicitation, evaluation, and selection of applicants for employment. Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by Controller to help manage its recruitment and hiring process on Controller’s behalf.  Accordingly, if you are located outside of the United States, your personal data will be transferred to the United States once you submit it through this site. Because the European Union Commission has determined that United States data privacy laws do not ensure an adequate level of protection for personal data collected from EU data subjects, the transfer will be subject to appropriate additional safeguards under the standard contractual clauses.  Your personal data will be retained by Controller as long as Controller determines it is necessary to evaluate your application for employment.  Under the GDPR, you have the right to request access to your personal data, to request that your personal data be rectified or erased, and to request that processing of your personal data be restricted. You also have the right to data portability. In addition, you may lodge a complaint with an EU supervisory authority.

Apply Now:

Blockchain.com is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for Kotlin and Solidity Developers with experience on blockchain protocols and EVM networks. As a Back-End Engineer on the DeFi team, you will be working on a wide array of projects, from scaling our non-custodial wallet’s network support to writing smart contracts.  Additionally, you will be responsible for integrating with 3rd party vendors that provide data for crypto tokens, DApps and DAOs, as well as efforts to further centralize logic that currently exists on our wallet clients, into backend services. As a Senior Back-End Engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices. WHAT YOU WILL DO

Build solid, reliable software to handle multiple networks and support our ever growing family of products and user base Be a part of a dedicated engineering team committed to applying the highest standards and shipping secure and performant systems Work in the core of Blockchain.com’s solution, interacting directly with multiple blockchains Work extensively with open source technologies (Docker, Kafka, MySQL) Ensure security is at the forefront of everything you do Work within interdisciplinary teams to continually deliver the highest quality products to our users Optimize existing systems for scalability, extensibility and performance whilst building out reusable, modular code for use across Blockchain.com's products

WHAT YOU WILL NEED

The foremost quality for this position or any position at Blockchain.com is integrity Solid experience in Typescript, Solidity  Experience working with Blockchain technologies (EVM or non-EVM chains, and defi protocols) You are highly motivated, self-driven, and passionate about cryptocurrencies You know how blockchain systems work, and preferably, you worked closely with at least one You find your way around a novel problem you haven't faced before You possess an innate curiosity, you know multiple programming languages, you are a strong advocate for the best engineering practices and thrive on learning new technologies You take a pragmatic approach to developing clean solutions to complex problems You pride yourself on consistent high levels of test coverage, strong technical documentation and effective monitoring You take full responsibility for all the projects you work on

COMPENSATION & PERKS

Competitive full-time salary based on experience and meaningful equity in an industry-leading company Awesome office location in the heart of Paris - working 4 days in the office is mandatory  Work from Anywhere policy  The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an exciting, emerging industry Unlimited vacation policy; work hard and take time when you need it Performance-based bonuses paid in cash Apple equipment provided by the company

Blockchain is committed to diversity and inclusion in the workplace and is proud to be an equal opportunity employer. We prohibit discrimination and harassment of any kind based on race, religion, color, national origin, gender, gender expression, sex, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, and apprenticeship. Blockchain makes hiring decisions based solely on qualifications, merit, and business needs at the time. You may contact our Data Protection Officer by email at email. Your personal data will be processed for the purposes of managing Controller’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results thereto, and as is otherwise needed in the recruitment and hiring processes. Such processing is legally permissible under Art. 6(1)(f) of Regulation (EU) 2016/679 (General Data Protection Regulation) as necessary for the purposes of the legitimate interests pursued by the Controller, which are the solicitation, evaluation, and selection of applicants for employment. Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by Controller to help manage its recruitment and hiring process on Controller’s behalf.  Accordingly, if you are located outside of the United States, your personal data will be transferred to the United States once you submit it through this site. Because the European Union Commission has determined that United States data privacy laws do not ensure an adequate level of protection for personal data collected from EU data subjects, the transfer will be subject to appropriate additional safeguards under the standard contractual clauses.  Your personal data will be retained by Controller as long as Controller determines it is necessary to evaluate your application for employment.  Under the GDPR, you have the right to request access to your personal data, to request that your personal data be rectified or erased, and to request that processing of your personal data be restricted. You also have the right to data portability. In addition, you may lodge a complaint with an EU supervisory authority.

Apply Now:

About Us: Founded more than 15 years ago and headquartered in Chicago, the DV Group of financial services firms has grown to more than 350 people operating throughout North America and in Europe. Since spinning out of a large brokerage firm in 2016, DV Trading has rapidly scaled as an independent proprietary trading firm utilizing its own capital, trading strategies, and risk management methodologies to provide liquidity to worldwide financial markets and hedging opportunities to commodity producers and users. Now, DV group affiliates include two broker dealers, a cryptocurrency market making firm, and a bourgeoning investment adviser.DV Energy is a rapidly growing division that specializes in trading crude oil, refined products, natural gas, and related energy markets across US, Europe, and Asia. Our proprietary risk management and trading methodologies along with a strong ability to adapt to changing conditions has allowed DV Energy to grow into one of the largest financial participants within the global energy complex.   Overview: DV Trading, LLC is a proprietary trading firm with over 200 employees trading equites, fixed income, FX and commodity products. DV Energy is a rapidly growing division that specializes in trading crude oil, refined products, natural gas, and other commodities across US, European, and Asian markets. Our combined risk management, world class technology, and human capital have enabled us to become one of the largest liquidity providers within the global energy complex. We are looking for an experienced software developer to work with a small team responsible for development and daily operations of an event-based risk management, market data and pricing platform using modern and performant technologies. This effort is part of a greenfield project and the suitable candidate will be involved in the development of the overall trading system.   Responsibilities:

Work alongside other software engineers, traders, and quants to develop and expand our risk management and trading platform Create scalable services for financial derivatives pricing and market data Efficient storage and access scheme for data and reference data across all frequencies, including microstructure data Building high-performance components for simulation and live trading

  Requirements:

Bachelor’s degree or higher in CS, Engineering or other technical discipline 2+ years professional experience developing infrastructure for quantitative trading Demonstrated ability to program in a scientific computing environment, preferably in Python/NumPy/Pandas and Java/C++ Experience working with distributed systems and large data sets Strong knowledge of algorithms, design patterns, OOP, threading, multiprocessing, etc. Experience with SQL, NoSQL, or tick databases Experience working in a Unix environment and git Familiarity with Kafka, Docker, AirFlow, Luigi Strong communication skills in verbal and written English. Domain knowledge in futures & swaps is a plus

  Benefits 

Highly competitive compensation and bonus structure Meritocratic environment with ample opportunity for growth Blue Cross Blue Shield Medical PPO Health Savings Account, MetLife Dental, MetLife Vision Coverage Flex Spending Account Employer paid life insurance Optional Long-term Disability, and AD&D Insurance Pre-Tax Parking and Transit Casual work environment

DV is not accepting unsolicited resumes from search firms. Only search firms with valid, written agreements with DV should submit resumes in response to DV’s posted positions. All resumes submitted by search firms to DV via e-mail, the Internet, personal delivery, facsimile, or any other method without a valid written agreement shall be deemed the sole property of DV, and no fee will be paid in the event the candidate is hired by DV. DV is proud to be an equal opportunity employer and committed to creating an inclusive environment for all employees.

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

The Consumer Product Group engineers strive to make the Coinbase retail app the easiest-to-use and fastest experience for accessing the crypto. Wallet is the future of web3 and of Coinbase. Suite of products include: Coinbase app, advance trade, dapps, and staking.

Join Coinbase's Country Expansion team to influence the future of cryptocurrency adoption in Canada. Collaborate with the Country Director, Product Managers, and cross-functional teams to customize the Coinbase app, tailoring it to the Canadian market and strategically shaping Coinbase's presence through innovative features and a customer-first approach.

What you'll be doing:

• Decompose our monolithic Rails app into microservices
• Articulate a long term vision for maintaining and scaling our backend systems.
• Work with engineers, designers, product managers and senior leadership to turn our product and technical vision into a tangible roadmap every quarter.
• Write high quality, well tested code to meet the needs of your customers

What we look for in you:

• You have at least 2+ years of experience in software engineering
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You have 3+ years of experience with Golang and MongoDB
• You have knowledge of Protobuff, GRPC, GraphQL, Docker, Ruby on Rails
• You’ve worked on engineering teams in the finance space
• You have knowledge with React or React-Native
• You like to speak in public, and like to perform technical workshops
• You are passionate about blockchain technology and a power user of crypto exchange applications or dapps

Job #: GCBE04CA

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

#LI-Remote

Apply Now:

Senior Software Engineer, Backend - New Product Vertical

We are looking for a software engineer within the Consumer Product Group. In this role, you will be a founding engineer of a new team, designing and launching a new product offering on Coinbase.

What you'll be doing:

• End to end ownership of engineering for the new Coinbase for Business product
• Backend systems design and architecture for new product offering
• Writing code and building prototypes as needed for the MVP and future vision concepts for Coinbase for Business including international payments, payroll, invoices etc.
• Collaboration across Coinbase teams to launch supporting features - onboarding, multi-user, payment rails, tax, settings, commerce integrations etc.
• Write high-quality, well-tested code to meet customer needs.

What we look for in you:

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

Nice to haves:

• You've worked on engineering teams in the fintech space building financial and payments systems.
• You have gone through a rapid growth in your company (from startup to mid-size).
• You’ve worked with Golang, Ruby, Docker, Sinatra, Rails, Postgres, MongoDB or Redshift.
• You have Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

Job #: GCBE05US

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

#LI-Remote

Apply Now:

Software Engineer, Backend - New Product Vertical

We are looking for a software engineer within the Consumer Product Group. In this role, you will be a founding engineer on a new team, designing and launching a new product offering on Coinbase.

What you'll be doing:

• Backend systems design and architecture for the new Coinbase for Business product
• Writing code and building prototypes as needed for the MVP and future vision concepts for Coinbase for Business including international payments, payroll, invoices etc.
• Collaboration across Coinbase teams to launch supporting features - onboarding, multi-user, payment rails, tax, settings, commerce integrations etc.
• Write high-quality, well-tested code to meet customer needs.

What we look for in you:

• You have at least 2+ years of experience in software engineering.
• You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
• You write high quality, well tested code to meet the needs of your customers.
• You’re passionate about building an open financial system that brings the world together.

Nice to haves:

• You've worked on engineering teams in the fintech space building financial and payments systems.
• You have gone through a rapid growth in your company (from startup to mid-size).
• You’ve worked with Golang, Ruby, Docker, Sinatra, Rails, Postgres, MongoDB or Redshift.
• You have Crypto-forward experience, including familiarity with onchain activity such as interacting with Ethereum addresses, using ENS, and engaging with dApps or blockchain-based services.

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

#LI-Remote

Apply Now:

Apply Now:

Apply Now:

About CoW DAO

CoW DAO is on a mission to protect Ethereum users from the dangers of DeFi. It does this by supporting the development of CoW Protocol, CoW Swap, MEV Blocker, and CoW AMM, and by funding values-aligned projects through the CoW Grants Program.

CoW Protocol is the second-largest DEX aggregator by monthly volume and the first-largest intents-based exchange. MEV Blocker is currently involved in ~4% of all Ethereum transactions, making it the category leader. CoW AMM is the only live AMM that protects LPs from LVR (loss-versus rebalancing).

As a member of CoW DAO’s core team, you will have the opportunity to shape these essential products, and contribute to the Ethereum ecosystem more broadly.

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’re looking for an experienced Backend Team Lead who will manage and guide our engineering team while also being highly technical. This person will help resolve problems, offer mentorship, and ensure the team delivers clean, maintainable code while avoiding over-complication. You’ll work closely with our Tech Lead, collaborating on both high-level technical decisions and hands-on execution to drive the team’s success.

This position is a mix of technical expertise and people management—ensuring that the team has everything they need to succeed, both technically and personally.

What you will do

• Lead, support, and mentor the backend team: Guide team members in developing their technical skills, improving performance, and overcoming challenges while providing mentorship, feedback, and opportunities for career growth
• Encourage clean and simple solutions: Foster a development culture that prioritizes simplicity, efficiency, and streamlined workflows to enhance productivity and maintainability
• Code reviews and technical guidance: Perform code reviews, provide constructive feedback, and ensure that the team’s code adheres to best practices and high-quality standards
• Work closely with the Tech Lead: Collaborate closely with the Tech Lead to support the team in implementing solutions, overcoming obstacles, and ensuring smooth development processes
• Problem-solving: Identify roadblocks or inefficiencies in the team’s processes and help resolve them in a way that aligns with CoW’s long-term goals
• Collaborate with cross-functional teams: Work closely with product, research, and other engineering teams to ensure smooth delivery of features and high-quality results

Our Tech Stack

• Backend Code: Rust, Tokio, Cargo, Git (https://github.com/cowprotocol/services)
• Infrastructure: Pulumi, AWS, Docker, Kubernetes, Grafana, Prometheus, Elasticsearch, Flux
• Other codebases: Typescript, Python, Solidity

Who you are

• Technical expertise: You have experience in backend development (languages such as Rust, Go, Python, etc.) and building distributed systems. While Web3 experience is a plus, it’s not a requirement.
• People-oriented leader: You have experience leading teams, providing mentorship, and fostering a growth-oriented environment. You know how to motivate people, resolve conflicts, and build trust within a team
• Tech-Savvy Leader: You can step in and help with complex technical challenges, but your main focus is on the people and processes
• Simplifying Solutions: You care about and understand the importance of keeping things simple and ensuring that the team follows best development practices
• You work well with others: You have a collaborative mindset and can work with both technical and non-technical team members and ensure everyone is aligned with the team’s goals
• Code quality: You are experienced in code reviews and are passionate about helping team members improve through constructive feedback
• Remote team leadership experience: As a remote-first company, we need a Team Lead with a strong track record of managing fully remote teams, fostering collaboration, and maintaining high engagement and productivity across different time zones
• Excited about web3: While you don’t need prior web3 experience, you’re eager to explore the space, especially with EVM chains, and learn more about DeFi and blockchain technologies

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 Protocol 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 Protocol, 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.

HyperDash, a leading trading analytics platform on Hyperliquid, is building onchain fund-of-funds infrastructure, allowing users to create personalized portfolios of traders and manage their combined risk effectively. We have already launched the beta version of our product and are currently in the process of rapid scaling.

We’re seeking a backend engineer to develop robust trading execution and risk management systems, design well-structured APIs in collaboration with our frontend team, and implement scalable data storage solutions. You’ll be instrumental in helping us serve more of our target market while maintaining our exceptional performance standards.

Interest in markets and trading is essential, as all team members contribute to product feature design. Your technical expertise combined with trading insights will directly impact our platform’s evolution and our users’ success.

Responsibilities:

• Design and implement order execution systems that can handle complex trading strategies across multiple accounts
• Create scalable data pipelines for trader performance analytics and strategy correlation metrics
• Implement monitoring and alerting systems for operational reliability

Technical requirements:

• Experience building reliable, high-throughput real-time systems
• Experience managing a distributed system on AWS
• Understanding of financial market structure concepts (order types, execution, etc.)
• Experience with database design and optimization

Culture and team fit:

• Interest in trading, financial markets and crypto is essential
• Product thinking is critical - we iterate constantly based on user feedback
• We’re a lean team that plans to say that way - being flexible with the role is key
• Interests like chess, poker, or competitive gaming would fit well

Our tech stack:

• Python
• ZeroMQ Microservice architecture with pub/sub messaging pattern
• Docker

It is an early-stage opportunity with significant upside as we are seeing real traction already. Besides that, it is also a chance to build something on the frontier that hasn’t been built before.

Compensation for this role is going to be 5-7k USD / mo depending on your experience and seniority, as well as an equity package after 2-3 month trial period.

Contact: email

About Us

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

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

Position Overview:

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

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

Our internal tooling:

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

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

Key Responsibilities

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

Job requirements

What we are looking for:

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

What We Offer:

🌱 Growth & Learning

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

🤝 Collaborative Culture

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

✈️ Retreats in Iconic Destinations

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

🏡 Work From Anywhere

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

🗣️ Radical Transparency

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

💸 Compensation & Equity

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

💼 Employment

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

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

• Culture at Chorus One

About the Team:

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

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

What you will do:

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

You might thrive in this role if you:

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

Why join us?

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

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

Apply now or reach out for more details.