Blockchain Engineer

The role We are hiring a Blockchain Engineer to design and implement smart contracts and chain integrations. You will work closely with backend and product teams to ship secure, production-ready on-chain systems. This is a hands-on role focused on correctness, gas efficiency, and operational safety. What you'll do - Design and implement smart contracts - Integrate on-chain systems with backend and frontend services - Write tests, deployment scripts, and upgrade paths - Review contract security and operational risks - Support indexing, events, and transaction monitoring - Collaborate on token, custody, and market flows What we're looking for Must-have experience and skills for this role. - 3+ years of software engineering experience - Strong Solidity or equivalent smart contract experience - Understanding of EVM fundamentals and common patterns - Experience with Hardhat / Foundry (or similar) - Ability to reason about security and edge cases - Comfort collaborating with backend and product teams Nice to have - Audit experience or formal verification exposure - L2 networks (Polygon, Arbitrum, Optimism) - ethers.js / web3.js integrations - RWA, DeFi, or fintech product experience Tech stack - Solidity - Hardhat / Foundry - Ethereum · L2s - ethers.js - Node.js - PostgreSQL Why join - Work on modern Web3, RWA, and digital products - High ownership and visible product impact - Close collaboration with engineering, product, and design - Fast-paced environment with real production systems - Remote-friendly across global time zones Hiring process - Application review - Technical interview - Final discussion Find more English Speaking Jobs in Switzerland on Arbeitnow