Rujun Han
Senior Research Scientist at Google
I work on LLM Agents and post-training at Google. My recent work on Deep Research is now available on Gemini Enterprise and Gemini DR Max with millions of users. Previously, I spent two years at AWS AI Labs leading research in RAG, LLM evaluations, and alignment while building enterprise AI assistant services Kendra and Amazon Q.
My recent research spans two complementary directions. On the vertical side, I build agents that solve challenging enterprise use cases in finance, engineering design, supply chain, and more. On the horizontal side, I invent general agent capabilities that enable agents to curate skills and learn from their own experience via recursive self-improvement.
Timeline
Senior Research Scientist
Working on LLM Agents, post-training, and distillation. Led work on Deep Research, now serving millions of users on Gemini.
Applied Scientist
Led research on open-domain search and QA. Built enterprise AI assistant services including Kendra and Amazon Q.
Senior Associate, Data Scientist
Built the bank's first ML model and big data pipeline for commercial lending risk assessment.
Senior Research Analyst
Applied statistical models (hidden factor models, time-series analysis) to predict economic and financial indicators. Contributed to Nowcast, UIG, and Monetary Policy research.
Ph.D. in Computer Science
M.Sc. in Data Science
B.A. in Economics and Mathematics
Selected Publications
See all publications on Google Scholar.