We are on a mission to redefine capital markets infrastructure through cutting-edge on-chain derivatives and protocol architecture. We're seeking a highly experienced Senior Solidity Engineer (or VP of Engineering, depending on seniority fit) to join our remote-first team. This is a pivotal leadership role within our smart contract engineering group, working alongside the Chief Protocol Officer, Engineering Manager, and cross-functional product leaders to build next-generation EVM-based DeFi infrastructure.
The team comes from established protocols, hedge funds, and market makers, and is backed by Polychain, Van Eck, Binance, Selini, Hashed, and others.
Key Responsibilities
Serve as one of the primary owners of Solidity development within a high-performing team of 6 smart contract engineers.
Architect, develop, and optimize secure, gas-efficient smart contracts powering Concrete's DeFi protocol.
Contribute to protocol design, audits, and security reviews with deep technical ownership.
Collaborate with product and project managers to align technical deliverables with roadmap priorities.
Drive the evolution of Concrete's on-chain architecture, with potential to scale across multiple chains.
Stay ahead of developments in the Ethereum ecosystem and contribute to open-source efforts as relevant.
3–4+ years of professional experience writing secure Solidity smart contracts & Familiarity with Solidity optimisation, gas cost analysis, and safe architectural practices.
Proven engineering background within an EVM-based DeFi protocol.
Strong understanding of smart contract testing, deployment frameworks, and upgradeability patterns.
Experience with cross-chain architectures, L2s, and bridging protocols is a nice to have.
Prior leadership experience or desire to grow into a VP-level technical leadership role.
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