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Posted Mar 31, 2026

Senior Smart Contract Engineer

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Read before applying - We are accepting candidates in the following time zones: EU, North America, and LATAM -  When you apply, include examples of your work (GitHub, audits, blog posts, etc.) About the Role We're seeking a Smart Contract Engineer to join our team in developing next-generation DeFi infrastructure. You'll be working on the design and implementation of innovative lending protocols and decentralized exchanges (DEXes). You'll collaborate on architecture, write production-grade Solidity code, run rigorous testing and fuzzing campaigns, and be involved in internal security audits. We're looking for someone who is self-driven, proactive, and ready to take ownership of the features they build from ideation to deployment. What You'll Do - Design and implement core smart contracts for lending and DEX protocols - Write high-quality, gas-efficient, and secure Solidity code - Own end-to-end delivery of features and protocol upgrades - Maintain a production protocol with $500M+ TVL and ensure smooth deployments - Launch and configure new lending markets on-chain - Write comprehensive test suites using Foundry - Design and run fuzz testing campaigns using Echidna - Participate in internal audits and contribute to the security posture of the protocol - Collaborate closely on protocol architecture and product design - Work with Certora on formal verification tasks Requirements - 3+ years of experience developing smart contracts in Solidity - Strong proficiency with Foundry (including scripting, tests, forks) - Experience with Echidna or other fuzz testing frameworks - Solid understanding of smart contract security and common attack vectors - Self-motivated and able to work autonomously and drive features forward - Strong communication and problem-solving skills Nice to Have - Experience with formal verification tools such as Certora Prover - Past contributions to lending protocols or decentralized exchanges - Familiarity with Ethereum L2s or alternative EVM chains - Open-source contributions or audit reports you can share What We Offer - Work on cutting-edge DeFi infrastructure with a tight-knit, experienced team. - Flexible hours and remote-first culture. - High impact and ownership from day one. - Competitive compensation in stablecoin in addition to a generous token allocation If you're excited about building secure, efficient, and elegant smart contracts and want to help shape the future of DeFi, we'd love to hear from you.