Rujun Han
Research Scientist at Google
Sunnyvale, California, United States
Summary
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SeniorRujun Han is a research scientist at Google with 9 years of experience spanning NLP, ML, and data science. He previously built and evaluated enterprise AI at AWS, serving as an Applied Scientist and leading research in RAG QA, LLM evaluation, and controllable generation for Kendra and Amazon Q. He holds a PhD in Computer Science from USC, with an MS in CS from USC and an MS in Data Science from NYU, adding a strong academic foundation to production-ready research. Earlier in his career, he applied data science in finance at the Federal Reserve Bank of New York and Commonwealth Bank. Based in Sunnyvale, CA, he blends rigorous academic training with hands-on engineering to translate complex research into scalable systems. He thrives at the intersection of research and product, driving innovations in NLP and AI services.
10 years of coding experience
Github Skills (22)
ray5
knn-classification5
temporal-data5
pytorch-lightning5
pytorch4
prediction-model4
mixture-of-experts4
deep-learning4
prediction4
pipeline3
nlp3
feature-engineering2
machine-learning2
codebase2
distributed-training2
Programming languages (1)
Github contributions (5)
eventqa-qualification/eventqa-qualification.github.io
Jul 2020 - Nov 2021
Contributions:208 pushes in 1 year 4 months
rujunhan/rujunhan.github.io
Sep 2021 - Mar 2025
Contributions:75 pushes in 3 years 6 months
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