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Smart Contract Engineer

In-Person or Remote | NYC Preferred 💼 Contract🗓 2026-01-09 → 2026-07-31

Core

Designing and deploying mission-critical DeFi protocol infrastructure (lending, vaults, tokenization) for large financial enterprises.

Role type

Senior Smart Contract Engineer (DeFi Protocol)

Builds

Production-grade Solidity smart contracts and decentralized lending/vault primitives

Domain

Decentralized Finance (DeFi) / Blockchain Infrastructure

Deliverable

production ML models | product features

Required skills

Solidity, Foundry, Hardhat, Unit Testing, Fork Testing, Fuzzing, Invariant Testing, DeFi Protocol Architecture

Preferred skills

Vyper, Rust, Cairo, Cosmwasm, CTF participation, Gas optimization, Rollup design, Zero-knowledge proofs

Technologies

Solidity, Foundry, Hardhat, Compound, Aave, Morpho Blue, MakerDAO, Euler, Yearn V3, Uniswap V3/V4, CoW Protocol

Responsibilities

Research and design novel protocol mechanisms for lending and vaults; Lead protocol design decision making regarding trust assumptions and efficiency; Develop and maintain Solidity contracts with comprehensive test suites; Maintain security standards for open source codebase

Seniority

Senior, hands-on IC

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