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%
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.
Tech Environment Core Stack: TypeScript (Node.js-based 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.
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