Sai is Director of Data Science at Fidelity Investments, leading applied AI initiatives focused on deploying LLM agents into production with robust evaluation, safety, and governance frameworks. He holds a PhD from Carnegie Mellon University's Language Technologies Institute and is a recipient of the Facebook Fellowship, with published research spanning speech synthesis, natural language processing, and human-computer interaction. Beyond his role at Fidelity, Sai develops open-source AI projects, including Judith, a personal AI agent integrating group chats and smart glasses, and Jataayu, a security framework focused on prompt-injection detection and privacy protection for LLM agents.