StarkWare is at the forefront of blockchain and deep technology, creating cutting-edge solutions that scale Ethereum and Bitcoin, and unlock the potential of Web3. Our technology combines academic rigor with practical application, enabling the next generation of decentralized innovation. Join a team of the brightest minds pushing the boundaries of cryptographic proof systems and scalable blockchain infrastructure.

*This role requires travel at least twice a year for team off-sites and industry conferences.

Mission: You will play a key role in developing our iOS/Android apps, ensuring a seamless and enjoyable user experience. As part of a dynamic and collaborative team, you’ll contribute to cutting-edge projects that push the boundaries of web3 mobile technology.

Key Responsibilities:

• Develop and maintain iOS/Android applications integrated with the Starknet network, optimizing performance and responsiveness.
• Lead features from research and design to implementation and launch.
• Collaborate with distributed teams across Engineering, Product, and Ecosystem to set clear roadmaps and milestones.
• Engage with the Starknet community to develop and integrate innovative solutions.
• Write clean, maintainable, and well-tested code.
• Stay up to date with industry trends and apply best practices to improve development processes.

• For iOS: Proficiency in Swift, UIKit, and a solid understanding of iOS development best practices. TypeScript and React Native knowledge is a plus
• For Android: Proficiency in Kotlin in native Android development (Kotlin/Java). TypeScript and React Native knowledge is a plus
• A passion for developing phenomenal user experiences. 
• Ability to quickly adapt to new programming languages, tools, and environments.
• Strong ability to write efficient, testable, and maintainable code.
• Fast learner with a proactive, “get things done” mindset.

Nice to Have:

• Experience with blockchain protocols, particularly Ethereum and Starknet.
• Experience with open-source development.
• Experience with SDK Development

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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!

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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:

Team/ Role Paragraph:

Team - The Agent Productivity Tools (APT) team is a vital part of Coinbase’s Enterprise Applications and Architecture org, responsible for building the customer experience platforms that streamlines the customer service and compliance processes with innovative services, tools and applications that improve the efficiency and effectiveness of CX agents. This helps resolve customer issues and compliance KYC processes faster, with greater accuracy, and ultimately this leads to higher customer satisfaction levels and a better overall compliant experience for our customers.

Role - We would like to add a Software Engineer to help transform our platform at Coinbase in supporting Coinbase’s goals of improving security, compliance, and cost. You will be joining an agile and tight-knit team that is focused on delivering value. We are seeking individuals who thrive in a continuous learning and high level of ownership environment.

What you’ll be doing:

• Build new services to meet critical business needs using Golang and React.
• Support team members in design techniques and best practices in coding, testing, release/deploy process, documentation, metrics/logging and scaling.
• Work with engineers, security, designers, product managers and senior leadership to turn product and technical vision into a tangible roadmap every quarter.
• Demonstrate a keen awareness of Coinbase’s platform, development practices, and various technical domains and build upon them to efficiently deliver improvements across multiple teams.
• Communicate across the company to technical and non-technical leaders with ease.
• Work with teams and teammates across multiple time zones.
• Participate in on-call production support rotations.

What we look for in you:

• You have at least 3+ years of experience in developing web services, web apps and shipping features with web services , JavaScript and modern, component-based JS frameworks like React.
• You write high quality, well tested code to meet the needs of your customers.
• You’re familiar with product and design lifecycles, and collaborating closely with designers, engineers, and product managers.

Nice to haves:

• Experience in Cloud, Kubernetes, Terraform, GitHub Actions or similar.
• Python
• Typescript
• SaaS platform experience

Apply Now:

Engineering@Easygo Join a team that thrives on innovation and craftsmanship, building cutting-edge games that entertain millions worldwide. At EasyGo, our team is at the heart of our games, creating immersive, high-performance experiences while integrating seamlessly with top-tier third-party providers. We tackle complex technical challenges with creativity and precision, ensuring every game we build is robust, scalable, and engaging. If you're passionate about pushing the boundaries of frontend development in gaming, collaborating with talented engineers, and delivering world-class entertainment, this is the team for you. If you're passionate about growth, innovation, and working with the best, we'd love to have you on our team!  Key Responsibilities: 

Actively engage in hands-on coding, testing, debugging, and troubleshooting to ensure code quality, scalability, and maintainability.  Write efficient, scalable, and maintainable code, adhering to coding standards and best practices.  Lead technical discussions and propose solutions that drive team performance and contribute to team and company OKRs.  Innovate within the team by pushing for improvements and driving constructive changes to enhance team performance and efficiency.  Analyse complex problems and provide effective solutions, contributing to team goals and initiatives.  Lead and independently complete medium-sized projects or components from start to finish.  Identify opportunities for improvement and take initiative in technical discussions. Share knowledge and best practices with the team, fostering a collaborative and learning-oriented environment.  Mentor junior engineers by providing guidance and constructive feedback to support their growth.  Collaborate with stakeholders, product managers, and engineering teams to effectively communicate technical concepts. 

Minimum Qualifications: 

Bachelor's/Master's degree in Computer Science or equivalent practical experience. 6+ years of hands-on experience in software engineering, with a primary focus on front-end development.  Proficiency in JavaScript, TypeScript, Node  JS & React but open to other tech stack as well Experience with unit testing frameworks and methodologies for frontend development (e.g., Vitest, Jest, Testing Library) to ensure code quality and reliability. Strong understanding of code architecture and design principles.  Excellent problem-solving skills and the ability to thrive in a fast-paced, dynamic environment.  Strong communication skills for effective collaboration with teams and stakeholders. ● Analytical mindset to address complex technical challenges and devise innovative solutions.  Positive attitude and eagerness to learn new technologies to grow as a full-stack engineer.

Some of the perks of joining us: 

EAP access for you and your family  Access to over 9,000 courses across our Learning and Development Platform  Paid volunteer day  Two full-time baristas who will make your daily coffee, tea or fresh juice! Daily catered breakfast  Massage Wednesdays - we get professionals to do this!  Team lunches and happy hour in the office from 4 pm on Fridays  Fun office environment with pool tables, table tennis and all your favourite gaming consoles  Help yourself to drinks fridges and snack shelves 

We believe that the unique contributions of everyone at Easygo are the drivers of our success. To make sure that our products and culture continue to incorporate everyone's perspectives and experiences we never discriminate on the basis of race, religion, national origin, gender identity or expression, sexual orientation, age, marital, veteran, or disability status. We are passionate about providing a workplace that encourages great participation and an equal playing field, where merit and accomplishment are the only criteria for success.

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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 a passionate Senior Frontend Engineer to help take decentralized trading to the next level. You’ll take charge of our CoW DAO products and help shape what’s coming next, making sure the user experience is smooth across trading interfaces, analytics, docs, and more.

We’re after someone who’s a great communicator, loves working with a team, and is eager to learn (especially about blockchain). If you thrive on ownership, like solving problems, and are curious about the world of blockchain, this might just be the role for you.

Tech stack we work with

• Frontend: Typescript, React, styled-components
• Web3: Web3, ethersjs, Hardhat, Solidity, IPFS, TheGraph, ENS
• Testing: Jest, Cypress, React Testing Library
• Analytics: Dune Analytics, Google Analytics

What you’ll be doing

• Develop and improve user-facing applications like CoW Swap on top of the CoW Protocol
• Build and implement new features quickly, with a focus on performance, accessibility, and quality
• Decide when to create reusable abstractions and when to build one-off features, always keeping scalability and maintainability in mind
• Contribute to the product roadmap by proposing new features, sharing design ideas, and helping the team prioritize tasks
• Push the boundaries of decentralized user interfaces. Our products are hosted traditionally but also deployed on decentralized networks like IPFS/ENS, and we work with decentralized infrastructure like The Graph and Ethereum nodes

What we’re looking for

• Experience: 3+ years of professional experience building client-side web apps
• Technical skills: Expertise in front-end technologies (React, TypeScript, CSS, state management libraries like Redux, Recoil, or Jotai)
• Code quality: Ability to review and guide the team on architecture, code quality, and best practices
• Problem-solving: Strong debugging and problem-solving abilities
• Team player: Excellent communication skills and a willingness to collaborate and share knowledge
• Self-driven: You take ownership of your work and are proactive about learning and growing in your career
• Blockchain knowledge: Experience integrating frontend with smart contracts and familiarity with tools like Web3.js, Ethers.js
• Product vision: A solid understanding of the crypto DApp ecosystem, user experience, and market trends

Bonus points if you have:

• DevOps & tooling: Experience with CI/CD pipelines, testing frameworks, and deployment tools; familiarity with cloud services (AWS, GCP, etc.)
• Backend experience: Knowledge of Node.js, databases, and RESTful or GraphQL APIs

What we can offer

• 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 3.000 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.

In the past few years, the foundational technology required for crypto to replace traditional payment rails has finally come online: stablecoins, cost-effective L2 networks, and Coinbase Smart Wallet. This represents a multi-billion dollar opportunity for Coinbase to disrupt the payments industry by leveraging its leading position in onchain development and deep expertise of existing fiat rails.

This role is for the lead engineer of the team for this new Onchain Payments effort, which will include both 0-1 product development and building off of the existing Coinbase Commerce product. It’s best to think of the team as a start-up within Coinbase looking to find product market fit for a radically new approach to payments

What you'll be doing:

• Bring a 0-to-1 product to life to replace the global payment stack with crypto rails
• Lead the fullstack design and development of a secure, high-performance product using TypeScript, Go, and Solidity
• Rapidly prototype user flows to gain market feedback and adjust accordingly, productionizing code as necessary
• Integrate with a variety of existing Coinbase surfaces, including Smart Wallet, Commerce, and Platform APIs
• Design, implement, and drive adoption of a novel open-source web3 payment protocol using Solidity
• Work closely with product managers, designers, and other cross-functional partners to find product market fit
• Leverage, maintain, and improve upon an existing legacy codebase of Coinbase Commerce
• Drive the adoption of engineering best practices, ensuring operational excellence and sound maintenance of legacy code
• Optimize frontend and backend performance, ensuring fast transaction processing, smooth UI interactions, and efficient resource utilization
• Troubleshoot and debug complex fullstack issues, ensuring platform stability, reliability, and security
• Provide technical guidance and support to the entire engineering team and contribute to the overall technical direction of Coinbase

What we look for in you:

• 8+ years of experience in software development with a strong focus on fullstack development; 2+ years of experience in a leadership position of a crypto start-up is a plus
• Mastery of Go, JavaScript, TypeScript, and Solidity; familiarity with Ruby is a plus
• Proven track record of rapidly shipping high-quality fullstack systems
• Deep understanding of Ethereum and EVM-compatible chains and experience with developing smart contracts
• Demonstrated commitment to excellent developer experiences and open source code, especially in relation to crypto and payments
• Strong expertise in frontend development using modern frameworks like React, Next.js, and Angular
• Solid understanding of distributed systems, microservices architecture, and event-driven architectures, including experience with databases (PostgreSQL, MySQL, MongoDB), caching systems (Redis, Memcached), and message queues (Kafka, RabbitMQ)
• Experience with developer operations, including Cloud providers such as AWS and containerization technologies such as Kubernetes
• Deep understanding of web security best practices and experience with implementing secure coding practices for financial systems
• Exceptional problem-solving skills and ability to find elegant solutions to complex challenges in the crypto payment processing domain
• Outstanding communication, leadership, and collaboration skills, with the ability to inspire and mentor teams
• Bachelor's or Master's degree in Computer Science, Software Engineering, or equivalent experience
• 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 #: GDFS06US

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

#LI-Remote

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Across’ purpose: To fulfill crypto’s potential by making blockchains more usable, more accessible and more efficient.

Across’ Vision: Intents are the standard in cross-chain interoperability.

Who is Risk Labs?

Risk Labs is the foundation and core team behind UMA, and some top tier products built with it such as oSnap, Oval, and the Across protocol. The Risk Labs team, operates as one cohesive (amazing!) culture, but focuses on two core protocols, UMA and Across. UMA and Across are decentralized protocols governed by community members across the globe in DAOs, and are supported by Risk Labs Foundation. UMA’s optimistic oracle (OO) can record any verifiable truth or data onto a blockchain. Across is leading the future of interoperability with its frontier intents based architecture.

The Role

We’re looking for a Senior Backend Engineer to join the Across protocol team. You’d be working alongside top tier engineering talent, world class data driven product development, and a team motivated to be hugely impactful for the exciting interoperable future that we’re racing towards. You’re a person who loves optimizing and building at the intersection of technology, finance, and data.

Responsibilities

• Building backend services: Build highly available backend systems, both serverless and persistent. These systems should have a high degree of correctness, efficiency, and anti-fragility.
• Indexing complex onchain data: Design systems that index complex onchain data for ease of use and speedy access. Gas efficient protocols rely on indexing to keep user experiences snappy and pleasant.
• Data engineering: Design and develop large-scale data pipelines to drive our understanding of our users and our protocol’s real-world performance.
• Building bots and smart contracts: Build bots and other services whose primary role is to monitor smart contracts and send transactions. You will be responsible for building infrastructure that is responsible for company and user funds.
• Code review and mentorship: Write code in a highly collaborative open source ecosystem. As much of your day will be spent reviewing and designing code as it will be writing new code. We take pride in writing clean code.

Requirements

• 4+ years full-time experience in Software Engineering at a software, financial services or related technology organization
• 2+years of experience with blockchain-based projects (hackathons or personal projects as well)
• Experience with databases, networking, and data pipelines is strongly preferred
• Outstanding critical thinking skills; low ego, high curiosity and comfort in being wrong
• Deep interest in software; desire to understand the why and the how of everything you work on
• Demonstrated ability to learn new tech and write secure and clean code
• Passion for blockchain technology, cryptonomic protocol design, game theory, and decentralized finance
• Growth mindset; a desire to learn from and mentor those around you
• Strong communication and collaboration skills, especially written

Language experience is not as important as your demonstrated ability to learn quickly but our language stack is simply: Typescript, Solidity, GCP

Compensation and Benefits

• Pay packages include competitive salaries & meaningful token options.
• Salaries for this role range from $100-200k (USD), and your token allocation can grow with your voting rewards while you participate in the growing ecosystem.
• Will pay in stablecoins or fiat
• Philosophies for a culture that show we care: Take vacation when you need it, family care, training and development (just to name a few)
• 100% remote, which means we encourage you to create the work environment that you thrive in.
• We are a globally distributed team and require all employees to have at least 3-4 hours of daily overlap with Eastern Standard Time (EST) to ensure seamless collaboration and communication. This allows us to work effectively across time zones while maintaining a strong team connection.
• At least two team wide offsites a year

Studies have shown that women and people of colour are less likely to apply to jobs unless they meet every single qualification. Risk Labs, the employing entity, is an equal opportunity employer and is dedicated to diverse, inclusive, and authentic workplaces. So, if you’re excited about this role but your past experience doesn’t perfectly align- we encourage you to apply anyways. We value you taking the chance. Risk labs will not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Our values:

1. We value each individual’s right to economic freedom.
2. We value openness, honesty, and directness.
3. We value integrity.
4. We value iterative learning.
5. We value taking smart risks.
6. We value creating an environment where everyone “does their best work”.

Why do we love working at Risk Labs?

We are a group that’s aligned with the ethos of the crypto industry and doing our best to make an impact for the industry and world at large. You’ll succeed with Risk Labs if you’re a self-starter, kind, adaptable, and passionate about making an impact. Risk Labs is a values driven team that strives to create an environment where we can do our best work, and succeed. We’re building products that we believe in, and continuing to strive for innovation and growth. Both personally and professionally we support each other to create a happy, healthy, and inspired team vibe, so we can remain motivated to build things the world needs and loves. We take pride in the fact that we are at once family-friendly as well as nomad-friendly.

UMA’s optimistic oracle is a decentralized truth machine for Web3- yes, that’s a bold and very exciting statement. We’ve built a solid foundation, in terms of the team, the technology, and the products, and the road map ahead is one full of exciting technical challenges, growth, and telling our story to the world. Across is creating an interoperable world where DeFi is seamless with its intents based architecture. We’ve grown from an early bridge, to a market leader, and won’t stop innovating and building. We have big dreams, and a team excited to bring them to life.

Still want to know more?

• Our team blends a mix of highly-sought engineers, and a diverse business team to showcase their high quality tech. Our international and fast-growing team includes a diverse background of experiences and has drawn world class talent. We have a great network of supportive investors from groups like: Placeholder, Blockchain Capital, Bain Capital, Coinbase, Dragonfly… to name a few.
• Teammates take the time off that they need and support each other to be their best selves- we care about your wellness.
• You will not get bored with Risk Labs. We are constantly developing, building, experimenting and evolving. Yes we try to allow people to focus on their specific product areas, but things are always shifting and evolving. There’s no right answer and we’re all just doing our best!

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

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

Working Language: English

About the project

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

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

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

Tasks

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

You will:

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

Requirements

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

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

Benefits

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

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

We are excited to meet you!

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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.

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SideShift.ai, the direct-to-wallet crypto exchange, is hiring a Frontend Engineer with a passion for UI/UX Design.

Since launching in late 2018, SideShift.ai has been growing rapidly. With seven-figure daily volume and key industry partnerships, we’ve achieved a lot, but there’s still plenty more to do.

As a lean team without dedicated designers or product managers, our engineers are true product owners. We’re looking for someone eager to contribute to all aspects of product development—from ideation and UI/UX design to implementation.

Role

• Build intuitive and user-friendly interfaces using modern tools like React, TypeScript, Next.js, Apollo, GraphQL, Storybook, Jest, and Cypress.
• Own projects from concept to live implementation, taking charge of both the technical and user experience aspects.
• Contribute to UI/UX design, ensuring our platform is not just functional but also visually appealing and delightful to use.
• Conduct user research to gather insights and understand user needs, pain points, and preferences. Ship fast and often. Your ideas will quickly make it into live products.

You

• Solid understanding of semantic HTML, CSS, and core JavaScript concepts.
• Experience with React and TypeScript.
• Demonstrated ability in UI/UX design with a solid eye for aesthetics and attention to detail.
• Ability to think from the user’s perspective and advocate for the best possible experience.
• Experience creating design mockups and prototypes using tools like Figma or similar.
• Passion for and knowledge of blockchain technologies.
• Proactive with product ideas and opinions.
• Curiosity and a keen interest in “why?”
• Outstanding written communication skills.
• Self-motivated and self-managing; able to thrive in an asynchronous environment.
• Able to join team meetings in EU/Asia time zones (though we try to avoid meetings as much as possible).

Nice to have

• Experience with Next.js.
• Experience interacting with smart contracts via the frontend.
• Experience with unit testing, end-to-end testing, or visual testing.
• An appreciation for memes.

Perks

• Salary paid in a SideShift.ai-supported crypto of your choice.
• Join a company with traction (seven-figure daily volume) and key industry partnerships.
• Direct impact on the product. Your ideas will lead to real developments.
• Remote-first culture—work wherever you feel most productive.
• Flexible vacation policy.

Please keep your answers short and include the word “satoshi” so we know you read these instructions.

Please note: SideShift.ai will pay fair market rates based on your location and experience.

Engineering@Easygo Join a team that thrives on innovation and craftsmanship, building cutting-edge games that entertain millions worldwide. At EasyGo, our team is at the heart of our games, creating immersive, high-performance experiences while integrating seamlessly with top-tier third-party providers. We tackle complex technical challenges with creativity and precision, ensuring every game we build is robust, scalable, and engaging. If you're passionate about pushing the boundaries of frontend development in gaming, collaborating with talented engineers, and delivering world-class entertainment, this is the team for you. If you're passionate about growth, innovation, and working with the best, we'd love to have you on our team!  Key Responsibilities: 

Actively engage in hands-on coding, testing, debugging, and troubleshooting to ensure code quality, scalability, and maintainability.  Write efficient, scalable, and maintainable code, adhering to coding standards and best practices.  Lead technical discussions and propose solutions that drive team performance and contribute to team and company OKRs.  Innovate within the team by pushing for improvements and driving constructive changes to enhance team performance and efficiency.  Analyse complex problems and provide effective solutions, contributing to team goals and initiatives.  Lead and independently complete medium-sized projects or components from start to finish.  Identify opportunities for improvement and take initiative in technical discussions. Share knowledge and best practices with the team, fostering a collaborative and learning-oriented environment.  Mentor junior engineers by providing guidance and constructive feedback to support their growth.  Collaborate with stakeholders, product managers, and engineering teams to effectively communicate technical concepts. 

Minimum Qualifications: 

Bachelor's/Master's degree in Computer Science or equivalent practical experience. ● 6+ years of hands-on experience in software engineering, with a primary focus on frontend development.  Experience with Svelte + SvelteKit or other server-side rendering frameworks (e.g. React + NextJS, Vue + Nuxt, Quasar, etc)  Proficiency in JavaScript fundamentals, Subscriptions (WebSockets, Pub/Sub), TypeScript, GraphQL, Storybook and related technologies.  Experience with unit testing frameworks and methodologies for frontend development (e.g., Vitest, Jest, Testing Library) to ensure code quality and reliability. ● Strong understanding of code architecture and design principles.  Excellent problem-solving skills and the ability to thrive in a fast-paced, dynamic environment.  Strong communication skills for effective collaboration with teams and stakeholders. ● Analytical mindset to address complex technical challenges and devise innovative solutions.  Positive attitude and eagerness to learn new technologies to grow as a full-stack engineer. 

Some of the perks of joining us: 

EAP access for you and your family  Access to over 9,000 courses across our Learning and Development Platform ● Paid volunteer day  Two full-time barista’s who will make your daily coffee, tea or fresh juice! ● Daily catered breakfast  Massage Wednesdays - we get professionals to do this!  Team lunches and happy hour in the office from 4pm on Fridays  Fun office environment with pool tables, table tennis and all your favourite gaming consoles  Help yourself drinks fridges and snack shelves 

We believe that the unique contributions of everyone at Easygo are the driver of our success. To make sure that our products and culture continue to incorporate everyone's perspectives and experience we never discriminate on the basis of race, religion, national origin, gender identity or expression, sexual orientation, age, or marital, veteran, or disability status. We are passionate about providing a workplace that encourages great participation and an equal playing field, where merit and accomplishment are the only criteria for success.

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Who are we?

We believe Ethereum has the potential to solve some of humanity’s most crucial coordination issues. Since our initial inception as a research group, we have sought to scale both its technology and values.

At present, the most pressing bottleneck to the growth of Ethereum is its performance and scalability. We are building the most elegant solution to this problem. We do this in the open (under an MIT open source license) because we believe in open source innovation and its ability to accelerate growth.

OP Labs contributes to the Optimism protocol, an extension to Ethereum that scales both its technology and values. Optimism enables orders of magnitude of improved performance and scalability to Ethereum while doubling down on its commitment to public goods.

The Optimism Collective leads the blockchain protocol landscape, dedicated to fostering a scalable and sustainable ecosystem. Optimism’s ethos, in sync with Ethereum's vision, tackles pivotal coordination challenges of the digital age. Optimism’s goal is to harmonize private incentives with public good, shaping a resilient future for the Internet. Optimism’s scope spans diverse areas like Gaming, DeFi, NFTs, and Enterprise.

Position Overview:

Are you ready to help shape the future of Ethereum? At OP Labs, we’re at the forefront of scaling Ethereum through the OP Stack, introducing groundbreaking features like interoperability and new multichain paradigms. As part of our Developer Experience (DevX) team, you'll have the unique opportunity to lead this transformation by building and advocating for tools that make Superchain development seamless and accessible.

In this role, you won’t just be working with tools like Foundry, Viem, and Wagmi—you’ll be at the cutting edge of new paradigms, tinkering with the latest technologies, collaborating with top developers in the ecosystem, and guiding them to unlock new possibilities. You’ll be the bridge between the OP Stack and application developers, using your expertise to directly influence the next generation of decentralized applications.

If you're passionate about building in the open, thrive on tinkering with new technologies, have full stack experience and love being an active voice in the developer community, we'd love to hear from you!

What are the role responsibilities?

Your north star is to serve app developers building on the Superchain via several workflows:

• Build and maintain Developer tooling: Actively contribute to the improvement of our developer tools like supersim and super-cli.

• Build and Maintain public API/Services: Build tools like relayers, faucets, and specialized APIs that enable developers to build seamless superchain UX.

• Community engagement: Interact with the developer community to gather feedback and share it internally to help drive product enhancements.

• Internal collaboration: Work closely with engineering, product, and marketing teams across the organization to align on product specs and requirements and ensure our tools target the right use cases and personas.

• Open source contributions: Prefer open source efforts, working in the open to improve the superchain developer experience.

What skills do you bring?

• Strong background in full stack software engineering with experience building full stack application and APIs (experience building developer tools and/or blockchain applications is nice to have, as is some understanding of JSON-RPC and the EVM).

• Our code is largely written in Typescript, Solidity, and Golang. You should be comfortable writing in these languages or confident that you can pick them up quickly.

• History of contribution to open source projects.

• A deep interest in improving tools for developers and making the development process easier, more efficient, and more enjoyable. Empathy for the developer experience and unending curiosity about their needs.

• You should feel comfortable owning the infrastructure part of the application stack (CI/CD, databases, k8s, etc.) when needed, or be willing to learn.

What will you like about us?

• We take care of our employees. Competitive compensation, fully paid medical, dental, and vision, and a 4% 401K match—learn more about our benefits, culture, and all recruiting FAQ here.

• We take pride in the accomplishments of our teammates and support each other in doing the best work of our careers.

• Our team is a diverse group of people from varied backgrounds. We cherish our eclecticism and consider it a great strength.

• We’re fully remote, deeply engaged, highly skilled, and like to have fun.

• We think long-term. Our founders have been scaling Ethereum since 2015.

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.

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

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

Working Language: English

About the project

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

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

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

Tasks

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

You will:

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

Requirements

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

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

Benefits

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

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

We are excited to meet you!

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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.

Are you a seasoned TypeScript backend engineer with a passion for designing and building high-performance, scalable services? Do you thrive in architecting event-driven notification systems and integrating with cutting-edge blockchain technologies? We are on a mission to develop the next-generation notification service—a lightning-fast, highly scalable, and robust system that seamlessly supports multiple distribution channels and advanced blockchain triggers. As a key player in our team, you’ll shape the architecture, ensure seamless message delivery using frameworks like RabbitMQ, and push the boundaries of blockchain-driven automation.

What we need to help with

In this role, you will leverage your expertise in TypeScript, distributed systems, and blockchain integrations to craft an innovative notification infrastructure from the ground up. You’ll be responsible for designing, implementing, and optimizing event-based pipelines, ensuring high availability and scalability. If you have a deep understanding of messaging queues, real-time event processing, and Web3 ecosystems, and you’re excited about solving complex engineering challenges, we’d love to hear from you!

We are seeking a back-end developer with a deep understanding of modern JavaScript/TypeScript languages and an active experience in blockchain development. A developer who is passionate about continuously improving and optimizing our existing codebase and pushing the quality bar higher. A person who is flexible and adaptable to changing needs and priorities.

In summary

• Problem-solving and communication skills
• Proficiency in JavaScript, TypeScript, Node.js
• Experience with blockchain development
• Experience with message-broker software (RabbitMQ or similar)
• Experience with integrating various distribution channels (Telegram, Discord, Slack, …)

• Remote friendly - This is all about discussion. We strive to ensure that the needs of both the business and our employees are met. We usually meet in offices located in Prague, Brno.
• ESOP (Employee Stock Option Plan) - Join our team and enjoy the opportunity to become a part-owner of our company through our Employee Stock Option Plan (ESOP), allowing you to share in our success and potential profits as you work with us.
• Flexible hours - Work whenever it suits your personal schedule. For most positions, we don't have fixed hours.
• 25 days off - Take time off. Enjoy your vacation.
• Learning & Development budget is ready for you - Whether you are looking to enhance your technical skills, develop your leadership capabilities, or explore new areas of the blockchain ecosystem, we are here to support you every step of the way.
• Projects that will introduce you to the world of blockchain - it will not only give you a better understanding of blockchain technology but also equip you with valuable skills for the future.

Are you ready to hop on our fast train to the future? Become a #Tatumer! Contact us with your resume or a link to your LinkedIn profile. We want to introduce ourselves and get to know you better!

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:

Writing, testing, and debugging code for software applications, ensuring functionality and efficiency; Developing and implementing new features based on project requirements and specifications; Participating in code reviews, providing constructive feedback to ensure code quality and adherence to best practices; Maintaining and updating technical documentation for software development and user guides; Working collaboratively with cross-functional teams, including product managers, designers, and other engineers, to deliver projects; Troubleshooting and resolving software issues and bugs in a timely manner; Optimizing software applications for performance and scalability; Developing and executing unit tests and integration tests to ensure software reliability; Assisting junior engineers with technical guidance and support; Staying updated with the latest technologies and best practices in software development; Contributing to project planning, estimation, and tracking to ensure successful delivery; Ensuring high-quality standards are met through rigorous testing and code reviews; Delivering code to production in a timely manner according to business expectations.

Essential professional experience:

Strong understanding of web page loading, rendering, cross-browser compatibility, and SPA/static web pages; Knowledge of HTTP requests, WebSockets, REST APIs, micro frontend concepts, and basic web security (CORS, OWASP, CSP); Deep knowledge of core JavaScript (event loop, closures, hoisting), modern ES features, asynchronous programming, and DOM manipulation; Strong grasp of static typing, complex types, interfaces, and advanced TypeScript concepts; Expertise in semantic HTML, accessibility, CSS preprocessors, responsive design, and complex animations; Strong knowledge of React core concepts, component design, optimization, and state management (Redux, Recoil, Jotail); Proficiency in Webpack(RC pack), task runners, module federation, and bundle optimization; Expertise in Jest, Playwright, React Testing Library, unit testing, and Chrome DevTools; Experience with npm/yarn and dependency management; Ability to analyze code, debug efficiently, and create POCs for complex issues; Upper-Intermediate or higher proficiency in English.   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/.

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About Oasis: Designed for the next generation of blockchain, the Oasis Network is the first privacy-enabled blockchain platform for open finance and a responsible data economy. The Oasis Protocol Foundation supports projects focused on building privacy-preserving applications on top of the Oasis Network. About The Role: As a Software Engineer - Solutions and Integrations, you will play a critical role in ensuring the successful adoption and integration of the Oasis Network and tooling. You will work closely with our product, engineering, business development and developer relations teams to build demo dApps and PoC’s to demonstrate real-world user cases for prospect partnerships. You’ll also be working with external engineering teams to design and implement custom integrations between Oasis and other products such as infrastructure tooling, exchanges and other dApps that want to utilize Oasis Privacy Layer and the Oasis Sapphire (Oasis confidential EVM). What You’ll Be doing:

Collaborate with prospects and current partners to understand their technical requirements and pain points, and architect tailored blockchain-based solutions to address their needs Design, develop, and deploy secure and scalable blockchain integrations, leveraging our protocol's unique features and capabilities Configure and customize our protocol to seamlessly integrate with clients' existing systems and infrastructure Provide technical guidance and support to developers and partners in our ecosystem throughout the implementation and integration processes  Continuously monitor and optimize deployed solutions to ensure optimal performance, security and reliability Share technical expertise by contributing to our technical documentation, conducting online product walkthroughs and demos, and participating in industry events Identify opportunities for product improvements and new use cases based on partner feedback and market trends Be an advocate and evangelist of Oasis products within web3 communities. 

What We’re Looking For:

Bachelor's degree in Computer Science, Engineering, or a related technical field Professional experience in software development, systems integration, or blockchain technology using EVM based architecture Deep understanding of blockchain architecture, consensus mechanisms, and distributed ledger technologies Passion and interest in security best practices within distributed systems and dApp development Proficiency in programming languages such as TypeScript, JavaScript and Solidity and best practices for smart contract development Strong problem-solving and troubleshooting skills, with the ability to think creatively and adapt to evolving requirements Ability to rapidly build and present PoC’s in high-pressure environments. Excellent communication and client-facing skills, with the ability to translate technical concepts into business value Passion for the blockchain ecosystem and a commitment to staying up-to-date with the latest industry trends and best practices.

 We’d Love If You Have:

Passion for Web3 and data privacy Experience contributing to an open source project in Web3 or similar Exposure to working in a startup or high-growth environment Experience in public speaking and hosting workshops.

What Our Interview Process Looks Like:

30 Minute Call with Recruiter Technical Interview - Led by Engineering Manager & Peer Presentation to Panel Final Round

What You’ll Get For Joining:

Work with a welcoming and highly talented team Get paid competitive compensation in USDC Vesting token grants and incentives Attend industry-conferences around your region Remote-first working

Apply Now:

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 Us

Chorus One is at the forefront of Proof-of-Stake networks and decentralized protocols, helping secure billions in assets for tens of thousands of customers and institutions worldwide.

Our mission? To drive freedom and innovation through cutting-edge decentralized technologies.

We’re a global powerhouse of 75+ talented individuals from 25+ countries, united by a shared passion for excellence, radical transparency, and continuous growth. But it’s not just about results—we believe in treating each other with kindness and generosity while tackling some of the industry’s most exciting challenges.

If you’re ready to make an impact in a collaborative, high-energy team redefining the future of blockchain infrastructure, we want to hear from you!

Position Overview

As a Frontend Software Engineer, you will lead the development of our user-facing applications, ensuring an exceptional experience for our customers and stakeholders. You’ll work on high-impact projects like our OPUS Pool Ethereum staking portal and tools that enhance staking for our users. Collaborating closely with product managers, designers, and backend engineers, you’ll play a key role in delivering intuitive, performant, and scalable solutions.Your work will directly shape the way thousands of users interact with our staking services and products.

Our Tech Stack

Our frontend applications are built with TypeScript and React.js (Next.js), leveraging modern tools for fast and efficient development. While your primary focus will be on the frontend, you may occasionally contribute to backend tasks, which utilize Python, Go, Rust, Postgres for databases, and Kubernetes for deployment.

Key Responsibilities:

• Lead Frontend Development: Take ownership of frontend initiatives, proactively driving development efforts, ensuring high-quality standards, and fostering collaboration across teams.
• Contribute to Open-Source SDK: Actively contribute to our open-source staking SDKs, supporting multiple blockchain ecosystems, including Ethereum, Solana, Cosmos, Ton, Near, and others.
• Develop Staking DApps: Build intuitive staking applications by connecting wallets, crafting transactions, and creating seamless user interfaces that abstract away blockchain complexities.
• Support and collaborate: Review and discuss engineering designs, review code, help fellow engineers, and mentor them on a technical level.

Job requirements

What we are looking for:

• 4+ years experience as a Front End engineer.
• Strong Typescript knowledge and experience working with React.js.
• Experience working on the back-end using Python, Rust, Go or other languages.
• Experience working with databases
• Good understanding of security principles.
• Having worked on a user-facing product before, operating and maintaining applications in production.
• Strong communication skills and ownership to drive new features independently.
• You are able to work in the following time zone: Switzerland ± 6 hours.
• Experience working with blockchain technologies, alternatively passion for learning.

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. (USD 100k - 140k) + equity.

💼 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.