hardilsingh

Lead full-stack engineer with 8+ years in TypeScript and Node.js, most of it on systems that move money. I co-founded and built Bitopayments (bitopayments.com), a stablecoin payment gateway that's live on four chains, and designed an MPC custody platform (mpc.bitopayments.com) with threshold signing in Go for EVM chains, Bitcoin, Solana and Stellar.

At Antier Solutions I built TOMI Wallet in React Native for Ethereum, Polygon and BNB Chain (50,000+ downloads) and worked on DeFi, DEX, DAO and staking apps. I also run Posthaste, my own transactional email service, and built an AI agent on the Claude API that runs real actions inside an HR SaaS.

Looking for a senior or lead remote role on a web3 or fintech team, full-time or contract. Based in India (in France until mid-November 2026) and available right away.