Hi! I'm Aritra Chatterjee, a fullstack engineer building wallets and DeFi at the edges of web3 and AI. I care about open protocols, cryptography, privacy systems and DeFi. At HappyChain, I built an embedded wallet SDK for latency-sensitive games (try it below 😄); before that I migrated lending and perpetuals protocols and wrote Rust trading APIs at Titans Finance. I write about it: how they're designed, how they're built, and what I learn from making them. The intricate details live in my works. Off the clock I play: hackathons, talks, open-source detours.