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, 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 What 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. jid3bbd72aafr jit0104afr jpiy26afr