Description
Senior Back (TypeScript) Engineer
Senior Backend Developer - Web3 Infrastructure (TypeScript & Rust)
Location: Lausanne, Switzerland | Work Setup: Hybrid (2 days remote/week)
Type: Permanent | Start Date: Flexible | Workload: 80-100%
Are you a backend engineer passionate about building performant, scalable systems and eager to explore cutting-edge technologies in the Web3 space? We're looking for a Senior Backend Developer to join a fast-growing DeFi project backed by a highly technical team and a strong crypto-native vision.
ð§ Your Mission
- Architect and implement high-reliability backend services (using TypeScript & Rust) that support core blockchain-enabled products.
- Build APIs, data pipelines, and internal tooling to streamline platform scalability and performance.
- Participate in the full development lifecycle"from system design to testing, deployment, monitoring, and maintenance.
- Collaborate cross-functionally with engineering and product teams to ensure consistent, secure, and robust system behavior.
- Contribute to CI/CD pipelines and DevOps automation.
- Continuously improve code quality, performance benchmarks, and developer experience.
ð ïž Tech Environment
- Core Stack: TypeScript ( microservices), Rust (growing footprint)
- Web3 / Smart Contracts: Solidity (EVM), Hardhat, multi-chain deployments (ETH, BSC, Arbitrum, etc.)
- API / Data: GraphQL, Apollo, NoSQL, Redis
- Infra & DevOps: AWS, Docker/Kubernetes, Terraform, GitHub Actions, CI/CD, monitoring with Prometheus & Grafana
- Frontend: React, TailwindCSS
- Culture: Clean code, code reviews, test coverage, end-to-end ownership, pragmatic use of new tech
â What You Bring
- Must-have: Strong experience in backend engineering with TypeScript in production environments.
- Solid understanding of system architecture, microservices, and containerized infrastructure.
- Interest in Rust and motivation to upskill in a Web3/Rust-native ecosystem.
- Familiarity with modern DevOps tools and CI/CD practices.
- Excellent communication skills in both English and French.
- Proven ability to thrive in fast-paced, iterative environments with a high degree of autonomy.
ð Bonus Points
- Prior exposure to DeFi or blockchain technologies.
- Experience with protocol integrations or backend systems interacting with smart contracts.
- Understanding of high-availability systems and performance optimization.
ð Why Join
- Work on impactful Web3 infrastructure projects with real-world traction.
- Join a lean, collaborative team with deep technical experience and crypto-native culture.
- Enjoy flexible work hours, 2 remote days per week, and an agile work environment.
- Competitive compensation and benefits aligned with your seniority.