Hello. I am a scientist & engineer at Google DeepMind.
I am on the Gemini core team working on RL & post-training.
Recently, I was model co-lead & co-captain of the Gemini Deep Think model that achieved the historic IMO Gold Medal 🥇.
Previously, I co-led early LLM efforts at Google Brain including PaLM-2, UL2 and Flan-2. While I was a researcher for most of my professional life, I also took a short break to be a co-founder of a "unicorn" AI startup in 2023-2024.
As a side quest, in 2025, I help built and co-founded GDM Singapore together with Quoc Le. I currently lead the Singapore Gemini team.
I enjoy badminton & classical piano. 
Training great LLMs entirely from ground up in the wilderness as a startup
Chronicles of training strong LLMs from scratch in the wild