Paxos Labs
Smart Contract Engineer
In-Person or Remote | NYC Preferred
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hirly's read of this role
- Seniority
- Mid level
- Country
- US
- Work mode
- On-site / unstated
- First seen by hirly
- 28 Sept 2026
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the posting
Who we are
Paxos Labs builds enterprise infrastructure that powers the next generation of trusted onchain financial products. We work with the largest financial enterprises in the world to build transparent and verifiable onchain infrastructure that works for end users and everyday financial use cases. If you believe in bringing DeFi and digital assets to the mainstream, consider building your career at Paxos Labs.
We're hiring a Smart Contract Engineer to help scale Paxos Labs's DeFi protocol infrastructure capabilities.
Who we’re looking for
The smart contract team at Paxos Labs consists of experienced developers who have shipped multiple decentralized primitives from lending markets to vaults. We are looking for a motivated developer that can not only develop, but aptly research and deploy extensive knowledge across DeFi to create mission critical software to bring DeFi to the biggest enterprises in the world.
Most importantly, we are looking for developers with interests in the following:
DeFi Yield Strategies
Tokenization
Decentralized Lending
Under/un-collateralized Lending
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.
Qualifications
Knowledge
Deep knowledge refers to having direct contributions or having integration experiences through related projects and knowing lower level details.
Familiarity refers to not having had direct contributions to the space but following topics at a high level with interest.
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
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.
Other nice-to-haves
Personal experience in CTFs, gas golfing, hackathons.
Personal experience in blockchain architecture beyond solidity i.e. Rollups,
Personal experience as a degen/investor/user in DeFi protocols.
Personal experience in blockchain architecture beyond smart contracts i.e. node operations, rollup design, zero-knowledge proofs.
Why join us?
Joining Paxos Labs means becoming part of a pioneering team at the forefront of financial innovation for the mass market. You will have the opportunity to:
Build the Future: Play a critical role in transforming traditional enterprises with innovative crypto solutions.
Do Impactful Work: Contribute to projects that have a tangible impact on the global financial landscape.
Enable Personal Growth: Benefit from continuous learning and professional development in a rapidly evolving industry with an emphasis on personal career advancement.
Receive Competitive Compensation: Receive a competitive salary and participate in directly in ownership structures that provide top-of-the-line benefits.
Join A Dynamic Team: Thrive in a fast-paced, agile setting where your ideas are valued and your contributions are recognized.
Location
We are a heavily in-person team working in New York City. We prize effective in-person coordination that allows us to move fast. We also consider remote work on a case by case basis.
Once we receive your application, we'll be in touch if we are interested.
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