Senior Blockchain Developer - DeFi

ðŸ§Senior Blockchain Engineer - De
- Fi / Smart ContractsðŸ“Lausanne, Switzerland (Hybrid)| 🕓80-100%| ðŸ“Permanent contractA fast-growing Swiss technology company is looking for an experienced
- Senior Blockchain Engineerto strengthen its De
- Fi product team. In this role, you'll be at the heart of designing and building innovative decentralized finance solutions, working in a collaborative environment where new ideas are encouraged and quickly turned into reality. 🚀Your

--- MISSIONS ---
Take ownership of thedesign, development, testing and deploymentof smart contracts within a sophisticated De
- Fi ecosystem. Translate business and product

--- REQUIREMENTS ---
intosecure, scalable blockchain architectures. Work hand-in-hand with fellow engineers, product owners and other stakeholders todeliver new blockchain functionalities. Applyrigorous testing methodologies(unit, integration, fuzzing) to ensure robustness and security. Helpevolve the blockchain infrastructure, improve internal tools, and streamline development workflows. Keep a close eye onemerging De
- Fi trends, L2 solutions and smart contract best practices to push innovation forward. 🧰What You BringA deep interest in
- DeFi innovationand blockchain technologies, coupled with strong analytical and problem-solving skills. The ability tothrive in a fast-moving environment, make informed decisions with partial information, and work autonomously while collaborating effectively. Several years of hands-on blockchain development, including:Advanced proficiency in
- Solidityand smart contract security. Solid understanding of
- DeFi primitives, DEXs, and liquidity mechanisms. Strong generalist software engineering background (multiple languages, testing, clean architecture). Experience working inmultidisciplinary engineering teamson complex, scalable codebases. Leadership experience is a plus. Excellent communication skills in English; proficiency in French is a strong asset. 🧪Our Technical Environment
- Blockchain:EVM-compatible chains, Solidity, Foundry/Hardhat toolchains, extensive smart contract test coverage including fuzzing and property-based testing. Frontend:Modern Type
- Script stack with React-based frameworks, tightly integrated with blockchain backends. Backend & Infrastructure:Node. js, REST/GraphQL APIs, Dockerized services, CI/CD pipelines for rapid iteration and secure deployments. Architecture:Modular on-chain/off-chain integration, data indexing, monitoring and analytics dashboards to ensure reliability and performance. Culture:Developer-driven workflows, open discussions on architecture choices, strong emphasis on code quality, security, and peer review. 🌟Why Join
- Collaborate with ahigh-caliber teamof blockchain specialists to build cutting-edge De
- Fi products. Benefit from acompetitive compensation packagealigned with your expertise. Enjoy ahybrid working model, with two remote days per week and flexible hours. Contribute to impactful projects at the forefront of the De
- Fi ecosystem.