· Head of Large Language Model Efforts within AGI, Amazon2025–
· Amazon Scholar, Amazon2021–
· Co-Founder, President and Chief Scientist, Covariant2017–
· Advisor / Researcher, OpenAI2016–
· Research Scientist, OpenAI2016–
· Co-founder, Gradescope2014–2018
· Associate Professor, University of California, Berkeley2014–2017
· Assistant Professor, University of California, Berkeley2008–2017
· Professor, University of California, Berkeley2008–
· PhD in Computer Science, Stanford University2003–2008
· M.S. in Electrical Engineering, KU Leuven1995–2000