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 Back-End Engineer - TypeScript / RustYour 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.
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, RedisInfra & DevOps : AWS, Docker / Kubernetes, Terraform, GitHub Actions, CI / CD, monitoring with Prometheus & GrafanaFrontend : React, TailwindCSSCulture : Clean code, code reviews, test coverage, end-to-end ownership, pragmatic use of new techWhat You Bring
Must-have : Strong experience in backend engineering with TypeScript in production environments.Solid understanding of system architecture, microservices, containerized infrastructure and Web3 products.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.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.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. jid3bbd72aait jit0103ait jpiy26ait