Haoran Li

Career path.

1. Character.AI

   Head of Post-training & Data (Research)

   May 2025 - Present
2. Stealth Startup

   Co-Founder

   Oct 2024 - Jul 2025
3. Meta

   Research TL @ GenAI

   Oct 2017 - Oct 2024
4. Uber

   Software Engineer

   Dec 2015 - Oct 2017
5. Turn

   Software Engineer

   Aug 2014 - Dec 2015
6. Stanford Linear Accelerator

   Teaching Assistant

   Sep 2013 - Jun 2014