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