P

Paxos Labs

Embedded on-chain financial products platform

Smart Contract Engineer

Blockchain & Smart Contract EngineeringConfirmed live in the last 24 hours
Full-timeNew York, NY, USANo salary listed

About the Job

Requirements

  • Deep knowledge in lending codebases, including Compound, Aave, Morpho Blue, MakerDAO, Euler, EVC, Liquity, and Pendle.
  • Deep knowledge in vault codebases, including Yearn V3, Metamorpho or Morpho V2, BoringVaults, ERC7540, and Centrifuge.
  • Familiarity with automated market makers or solver networks, including CoW Protocol, UniswapX, 1inch, and Uniswap V3 or V4.
  • Familiarity with request-for-quote systems, including Hashflow, 1inch RFQ, or off-chain exchange systems, including traditional finance.
  • Experience shipping production Solidity smart contract code to mainnet.
  • Experience developing and maintaining smart contract tests, including unit testing, fork testing, fuzzing, and invariant testing with Foundry invariants or Echidna.
  • Experience with smart contract development tools such as Foundry or Hardhat.
  • Familiarity with smart contract development languages and frameworks such as Vyper, Rust, Cairo, or CosmWasm.
  • Experience as an active user, investor, or participant in DeFi protocols.

Responsibilities

  • Research and design novel protocol mechanisms around vaults, lending, and other DeFi primitives.
  • Lead protocol design decision-making while considering tradeoffs across trust assumptions and efficiency.
  • Develop Solidity contracts and produce comprehensive test suites for the protocol.
  • Maintain organizational and security standards for an open-source codebase.

Desired Qualifications

  • Personal experience in capture-the-flag competitions, gas golfing, or hackathons.
  • Personal experience in blockchain architecture beyond Solidity, including rollups.
  • Personal experience as a DeFi user, investor, or participant.
  • Personal experience in blockchain architecture beyond smart contracts, including node operations, rollup design, and zero-knowledge proofs.

About the Company

Paxos Labs

Embedded on-chain financial products platform

Paxos Labs provides enterprise-grade, regulated infrastructure to issue branded stablecoins and embed on-chain financial products for fintechs, banks, and marketplaces. It works through APIs and modular tools that let partners issue asset-backed stablecoins, deploy DeFi yield strategies, and tokenize assets, while Paxos handles custody, licensing, trading, settlement, and compliance. The company distinguishes itself with a regulatory-first approach, holding licenses from NYDFS, MAS, and OCC, and focuses on white-label and embedded solutions rather than consumer-facing crypto services, with PayPal as a key partner powering PYUSD. Its goal is to help platforms bring on-chain financial products to users by offering trusted, regulated infrastructure to issue, manage, and monetize digital assets.

Company size
11-50
Company stage
Early VC
Total funding
$12M
Headquarters
New York City, New York
Founded
2025

Recently Posted Jobs

Explore more opportunities at Paxos Labs

See more jobs