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William Liam Fedus
Person profile

William Liam Fedus

Switch Transformer co-author, now co-founder of Periodic Labs

Backed
RadixArk
Education
University of Montreal, University of California, San Diego, University of Cambridge +1 more

Investments 1

Companies backed, as recorded by Dealroom. Highest company valuations first.

Companies founded

Work history

Past roles by Dealroom records.

OpenAI
VP · 2022 – 2025
→
Alphabet | Google
Research Scientist · 2016 – 2022
→
University of California, San Diego
Physics PhD Student · 2013 – 2014
Fidelity Contrafund
Equity Research Associate · 2008 – 2013

Education

University of Montreal
PhD · Computer Science · 2017 – present
University of California, San Diego
Msc · Physics · 2013 – 2016
University of Cambridge
Bachelor · Physics · 2008 – 2009
Massachusetts Institute of Technology
Bachelor · Physics · 2006 – 2010

Talks 1

Interviews and talks Dealroom has written up, with the key moments.

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