About the role
Company Description
Paena is building the first on chain earned wage access platform that connects decentralized liquidity to real workers living paycheck to paycheck. We provide instant cash advances with smart contract based repayment and yield subsidized fees that dramatically undercut legacy earned-wage-access incumbents.
You will lead core engineering and product development at the intersection of fintech infrastructure, DeFi protocols, and consumer systems. We use crypto for good. Your work will directly shape how capital flows from on chain markets to off chain users at scale.
Role Description
We are hiring founding full stack/Solidity engineers to join us in San Francisco for this upcoming batch starting in January. This is a rare chance to join at day zero, ship product to real users, and help define how workers around the world access their earnings.
What you will do
• Build the core worker experience for requesting and repaying cash advances using React Native, TypeScript, and modern mobile tooling
• Design, implement, and audit Solidity smart contracts for earned wage access, including ERC 4626 style liquidity vaults, repayment logic, fee routing, and credit limits
• Integrate and build on top of DeFi protocols such as Morpho, Aave v3 with forward looking support for Aave v4
• Architect backend systems in TypeScript or Python using Node.js frameworks, relational databases, and event driven job queues
