Hardil Singh

Meet Hardil

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Lead full-stack engineer, 8+ years in TypeScript and Node.js, plus React, Next.js and React Native. I build systems that move money, like a crypto payment gateway, MPC custody and a client's trading ledger. I also built Posthaste, my own email service (1M-message load test, none lost), and Sana, an AI agent with human approval. Open to backend APIs, payments, AI features and full builds.