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.
ðŸ"§ 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.
ðŸ› ï¸ 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
âœ... 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.
🌠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.
Avenue du Théâtre 7 1005 Lausanne