Manju Rajashekhar is a technology leader whose career has been shaped by systems that can't go down. He was part of Twitter's early engineering team, where he led caching systems through their growth from 50M to 200M users. The systems his team open-sourced, twemproxy and twemcache, became industry standards for distributed caching. He co-founded Blackbird AI, a search and deep learning company acquired by Etsy, where he spent eight years leading Search, Ads, Recommendations, Personalization Engine, ML Infrastructure, and Experimentation. Manju is now building his second company, focused on AI agent infrastructure for agents that are long-horizon, durable, and reliable.