Fullstack Product Engineer

Help scale Paxos Labs's onchain product capabilities by building developer-facing APIs and SDKs, integrating smart contract transactions, iterating across frontend and backend systems, and improving developer experience for EVM-based DeFi infrastructure.

Responsibilities

• Build APIs and SDKs that let developers integrate onchain infrastructure into enterprise platforms.
• Research and integrate smart contract transactions.
• Maintain a secure open source repository and continuously improve developer experience.
• Collaborate with designers using Figma to create prototypes.
• Rapidly iterate across frontend and backend code based on feedback.
• Stay current on core Ethereum upgrades affecting wallet and developer UX.
• Improve onboarding for non-crypto-native developers through the Paxos Labs developer kit.
• Maintain high standards for liveness SLOs and observability.
• Work with the security engineer to protect developers and users from exploits.

Requirements

• Deep knowledge of building EVM dapps.
• Deep knowledge of developer-facing SDK and API development.
• Familiarity with DeFi applications including Uniswap, Aave, Morpho, and Pendle.
• Familiarity with cross-chain UX, account abstraction, and crosschain bridges.
• Familiarity with Solidity and the ability to read and understand smart contracts.
• Familiarity with financial mathematics and communicating quantitative information.
• Experience with Ethereum SDKs such as ethers, viem, wagmi, and RainbowKit.
• Experience with Postgres, SQL, and NoSQL databases.
• Experience designing intuitive SDKs and APIs for internal and external use.
• Experience with React, Redux, Next.js, or similar TypeScript frameworks.
• Experience with CSS frameworks such as Material UI and Tailwind CSS.
• Experience with DevOps and CI/CD tools such as Vercel and Heroku.
• Experience maintaining SaaS SDKs or APIs at scale.
• Experience working directly with clients to provide technical support and engineer solutions.

Benefits

• Continuous learning and professional development.
• Opportunities for personal career advancement.
• Competitive compensation.
• Participation in ownership structures and top-tier benefits.
• Opportunity to work on impactful crypto and financial infrastructure.