Smart Contract Engineer
You will help scale Paxos Labs's DeFi protocol infrastructure capabilities by joining an experienced team of developers who have shipped multiple decentralized primitives from lending markets to vaults. You'll not only develop but also research and apply extensive knowledge across DeFi to build mission critical software that brings DeFi to the biggest enterprises in the world. You'll be expected to bring deep interest and expertise in DeFi yield strategies, tokenization, decentralized lending, and under/un-collateralized lending, while leading protocol design decisions and maintaining exemplary organizational and security standards.
Responsibilities
- Research and design novel protocol mechanisms around vaults, lending, and other DeFi primitives
- Lead protocol design decision making considering tradeoffs across trust assumptions and efficiency
- Develop solidity contracts and produce comprehensive test suites for the protocol
- Maintain exemplary organizational and security standards for an open source codebase
Requirements
- Deep knowledge in Lending codebases—Compound, Aave, Morpho Blue, MakerDAO, Euler, EVC, Liquity, Pendle
- Deep knowledge in Vaults codebases—Yearn V3, Metamorpho / Morpho V2, BoringVaults, ERC7540, Centrifuge, etc.
- Familiarity with AMMs or solver networks—CoW Protocol, UniswapX, 1inch, Uniswap V3/V4
- Familiarity with RFQs—Hashflow, 1inch RFQ, or off-chain exchange systems (including TradFi)
- Experience shipping production Solidity smart contract code to mainnet
- Experience developing and maintaining tests for smart contract code i.e. unit testing, fork testing, fuzzing, invariant testing (Foundry invariants or Echidna)
- Experience with smart contract development tools such as Foundry (preferred) or Hardhat
- Familiarity with other smart contract development languages and frameworks such as Vyper, Rust, Cairo, or Cosmwasm
- Experience as an active degen / investor / user in these DeFi protocols