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GammaSwap
Remote
- Design and maintain secure, efficient, and scalable server-side applications using Node.js. for use by our front end application
- Develop and maintain relational databases (e.g., MySQL, PostgreSQL) to process and store blockchain data for server side node applications
- Develop and maintain subgraphs (e.g. using theGraph or GoldSky) to query and process blockchain event data.
- Collaborate with the team and cross-functional partners on all aspects of product development.
- Identify and advocate for team-wide areas of improvement and best practices.
- Strong expertise in Node.js and secure and scalable server-side application development
- Strong expertise in relational database development (e.g., MySQL, PostgreSQL)
- Strong experience with subgraph development using TheGraph Protocol, GoldSky, or similar
- Strong experience with node blockchain development libraries (e.g. Web3 libraries such as ethers.js, viem.js, etc)
- Basic understanding of Solidity and smart contract functionality in Ethereum and Layer 2 environments. This is not a smart contract development role but you need to understand how smart contracts work to integrate with the server side applications.
- Ability to quickly iterate and ship code using test-driven development patterns
- Understanding of financial markets or DeFi protocols is a strong plus
- Familiarity with cloud platforms (AWS, Azure, Google Cloud, DigitalOcean) and containerization tools like Docker
- Knowledge of blockchain security best practices and vulnerability mitigation
- Experience with version control, such as Git
Apply Now:
Libre Capital
Remote
About the Company
Libre is focused on the design and development of a blockchain-based protocol to eliminate inefficiencies in legal, financial and operational workflows for private markets. Going beyond the simple concept of tokenisation and enabling seamless access to private markets directly on-chain, regardless of the end-user platform and/or public network where the user is based
Libre’s product focus is to tokenise the funds on a blockchain infrastructure and enable future composability of the digital security assets with other institutional on-chain services e.g., collateralised lending and secondary trading.
About the role:
We are looking for an experienced Solidity Developer to join our team, working on cutting-edge projects. You will play a key role in designing, developing, and maintaining blockchain-based solutions that ensure stability, security, and scalability for our real-world asset tokenisation ecosystem. This is an exciting opportunity to work at the forefront of blockchain and financial technology, contributing to the future of tokenised assets.
What you are good at:
- Write and review high assurance code, tests, invariants and other deliverables for our protocol projects using industry best-practices
- Design, implement, and deploy secure and efficient Solidity-based smart contracts for Libre’s protocol
- Emphasis on robust process, continuous learning and ownership including collaborating with external audit firms as needed
- Contribute and evolve our internal methodologies, coding standards, review methods and other standard operating procedures
- Troubleshoot and optimize smart contracts while staying current with blockchain trends and advancements
- Contribute to our cross-chain capabilities by building robust integrations and maintaining multichain compatibility
- Closely collaborate with members across various teams
- Stay updated on the latest developments in blockchain technology, DeFi protocols, and trends in digital asset management
What you bring:
- 3+ years of experience in solidity development, with a proven track record of deployed contracts on mainnet
- Strong knowledge of EVM
- Extensive experience in developing complex smart contracts. Familiar with tooling such as Foundry, Hardhat or Remix
- Understanding of the DeFi landscape, such as lending protocols, AMMs, Perps and stablecoins
- Ability to effectively communicate, collaborate and connect with clients, partners and other third parties
- Excellent problem-solving skills, attention to detail, and the ability to work collaboratively in a team environment
Bonus Qualifications
- Experience with multichain environments and integrating across diverse blockchain ecosystems
- Knowledge and experience with real-world assets (RWAs)
- Public GitHub contributions to high-quality projects in the Ethereum or broader Web3 space
- Experience in developing off-chain applications that integrate with web3 protocols, using libraries such as Web3.js and ethers.js
- Knowledge in Traditional Finance, and the intersection between traditional finance and blockchain, such as Tokenisation
What we offer:
- Competitive salary and benefits package
- Opportunity to work on challenging and impactful projects
- Collaborative and supportive work environment
- Opportunities for professional growth and development
Apply Now:
Libre Capital
UK
About the Company
Libre is focused on the design and development of a blockchain-based protocol to eliminate inefficiencies in legal, financial and operational workflows for private markets. Going beyond the simple concept of tokenisation and enabling seamless access to private markets directly on-chain, regardless of the end-user platform and/or public network where the user is based
Libre’s product focus is to tokenise the funds on a blockchain infrastructure and enable future composability of the digital security assets with other institutional on-chain services e.g., collateralised lending and secondary trading.
About the role:
We are looking for an experienced Solidity Developer to join our team, working on cutting-edge projects. You will play a key role in designing, developing, and maintaining blockchain-based solutions that ensure stability, security, and scalability for our real-world asset tokenisation ecosystem. This is an exciting opportunity to work at the forefront of blockchain and financial technology, contributing to the future of tokenised assets.
What you are good at:
- Writing and reviewing high assurance code, tests, invariants and other deliverables for our protocol projects using industry best-practices
- Designing, implementing, and deploying secure and efficient Solidity-based smart contracts for Libre’s protocol
- Emphasis on robust process, continuous learning and ownership including collaborating with external audit firms as needed
- Contributing and evolving our internal methodologies, coding standards, review methods and other standard operating procedures
- Troubleshooting and optimizing smart contracts while staying current with blockchain trends and advancements
- Contributing to our cross-chain capabilities by building robust integrations and maintaining multichain compatibility
- Closely collaborating with members across various teams
- Staying updated on the latest developments in blockchain technology, DeFi protocols, and trends in digital asset management
What you bring:
- 3+ years of experience in solidity development, with a proven track record of deployed contracts on mainnet
- Strong knowledge of EVM
- Extensive experience in developing complex smart contracts. Familiar with tooling such as Foundry, Hardhat or Remix
- Understanding of the DeFi landscape, such as lending protocols, AMMs, Perps and stablecoins
- Ability to effectively communicate, collaborate and connect with clients, partners and other third parties
- Excellent problem-solving skills, attention to detail, and the ability to work collaboratively in a team environment
Bonus Qualifications
- Experience with multichain environments and integrating across diverse blockchain ecosystems
- Knowledge and experience with real-world assets (RWAs)
- Public GitHub contributions to high-quality projects in the Ethereum or broader Web3 space
- Experience in developing off-chain applications that integrate with web3 protocols, using libraries such as Web3.js and ethers.js
- Knowledge in Traditional Finance, and the intersection between traditional finance and blockchain, such as Tokenisation
What we offer:
- Competitive salary and benefits package
- Opportunity to work on challenging and impactful projects
- Collaborative and supportive work environment
- Opportunities for professional growth and development
Nethermind
EMEA
What are we all about?
We are a team of builders and researchers on a mission to empower enterprises and developers worldwide to access and build on decentralized systems.
Our expertise covers several domains: Ethereum and Starknet protocol engineering, layer-2, AI, cryptography research, protocol research, decentralized finance (DeFi), security auditing, formal verification, real-time monitoring, smart contract development, and dapps and enterprise engineering.
Working to solve some of the most challenging problems in the blockchain space, we frequently collaborate with renowned companies, such as Ethereum Foundation, Starknet Foundation, Gnosis Chain, Flashbots, Forta Protocol, Lido, EigenLayer, Open Zeppelin, RISCZero, Aleph Zero, and many more.
Today, we are a 350+ strong team working remotely across 66+ countries.
Role Overview:
As a Senior Full Stack Engineer, you will be responsible for designing, developing, and maintaining both frontend and backend components. You will work closely with product managers, designers, and other engineers to deliver high-quality, secure, and scalable solutions that meet the needs of our clients. This role requires a deep understanding of both frontend technologies like React and backend systems.
We are looking for candidates located in the EMEA region.
Why You’ll Love This Role
- Impactful Work: Your contributions will directly influence the way stakeholders interact with and perceive the security of blockchain networks through both the dashboard and the Insights API.
- Collaborative Environment: Join a team of passionate professionals who are committed to innovation, quality, and making a tangible impact in the blockchain space.
- Professional Growth: Enjoy opportunities for professional development and career progression in a rapidly evolving industry.
About You
An ideal candidate has 5+ years of Full-Stack Development experience and contributed to blockchain-related projects. We are looking for candidates who have worked on complex projects in a distributed team.
- Problem-Solving Attitude: Creative thinker with a knack for solving intricate technical challenges.
- Communication: Excellent communication skills, with the ability to convey technical concepts to non-technical stakeholders.
- Autonomous: The ability to work independently, make informed decisions, and take initiative without needing constant supervision, ensuring high productivity and effective problem-solving.
- Mentorship and Leadership: Provide technical guidance and mentorship to team members, fostering a culture of continuous learning and improvement.
Responsibilities:
- Collaborate with cross-functional teams, including product managers, designers, and other developers, to deliver high-quality projects on time.
- Writing clean, efficient, and maintainable code: Writing code that is easy to understand and modify is crucial.
- Debugging and testing: Ensuring that the frontend code is error-free and performs optimally through debugging tools and testing methodologies.
- Staying up-to-date with emerging trends and technologies: The web development industry is constantly evolving, and it is essential to stay current with the latest technologies, trends, and best practices.
- Documenting code and maintaining code repositories: To ensure that the development team can easily understand and modify the codebase, it is crucial to document your code and maintain code repositories.
- Participating in code reviews: Code reviews help identify potential issues and ensure that the codebase meets quality standards. You should be prepared to participate in code reviews and provide feedback on other team members’ code.
- Assisting with deployment: You may be involved in the deployment process, which includes configuring web servers, managing version control systems, and resolving any issues that arise during deployment.
- Provide guidance and mentorship to more junior developers, promoting continuous learning and improvement within the team.
Skills:
- Excellent skills in modern Go. Other programming languages and platforms are nice to have (JavaScript/Typescript, Rust, Python or Java)
- Awareness of modern client- and server-side React applications
- Experienced in designing scalable APIs
- Experienced in testing backend and frontend
- Experienced in modern database design and interaction (SQL and/or NoSQL)
- Expertise in architecture principles, design patterns, and the ability to analyze and address trade-offs in business requirements, system performance, reliability, and maintainability
- Experience in working closely with a DevOps team to design and deploy cloud-native infrastructure, to ensure scalability and reliability
Nice to have:
- Blockchain application experience (e.g. DeFi Protocols, Wallets, DEXs, block explorers, blockchain user-facing applications)
- Experience with smart contract development and interaction (e.g., Solidity, Web3.js, ethers.js)
- Small team leadership experience
- Financial Services and Markets understanding
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