Paxos Labs builds enterprise infrastructure that powers the next generation of trusted on-chain financial products. We work with the largest financial enterprises in the world to create transparent and verifiable on-chain 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. Role Overview We are hiring a Fullstack Product Engineer to help scale Paxos Labs’s on-chain product capabilities. The team builds DeFi infrastructure that simplifies access to on-chain financial rails for users and enterprise partners. You will help design and build products that abstract complexity and enable real-world financial usage Responsibilities • SDK/API development — build APIs and SDKs to allow developers to integrate Paxos Labs on-chain infrastructure into enterprise platforms. • Research and integrate smart contract transactions. • Maintain a secure open-source repository and iterate on developer experience. • Fullstack development — collaborate with designers on prototypes and iterate across frontend and backend. • EVM development — stay updated on Ethereum core upgrades affecting wallet and developer UX. • Ensure reliability by upholding high standards in liveness SLOs and observability. • Work closely with security engineers to safeguard developers and users from exploits. Technical Experience • Deep knowledge building EVM dapps. • Deep experience with developer-facing SDK/API development. • Familiarity with popular web3 apps such as Uniswap, Aave, Morpho, Pendle, etc., to understand UX across DeFi. • Familiarity with cross-chain UX concepts (Account Abstraction, bridges, etc.). • Familiarity with Solidity and ability to read and understand contract functionality. • Familiarity with financial math and ability to communicate quantitative information to users Tools & Frameworks • Ethereum SDKs — ethers, viem, wagmi, rainbowkit. • Databases — Postgres, SQL, NoSQL. • SDK/API design — building intuitive, scalable APIs. • Frontend frameworks — React, Redux, Next.js, or similar TypeScript frameworks. • CSS frameworks — Material UI, Tailwind CSS. • DevOps and CI/CD tools — Vercel, Heroku, etc. • Experience maintaining SaaS SDK/APIs at scale. • Experience working directly with clients to provide technical support and deliver engineered solutions.