About
Tim Roughgarden is Head of Research at a16z crypto and a professor in the Computer Science Department at Columbia University. Before Columbia, he taught computer science at Stanford for 15 years, after earning a PhD at Cornell and completing a postdoc at UC Berkeley. His work spans the intersection of computer science and economics, including the design, analysis, and limitations of algorithms.
Tim Roughgarden @tim_roughgarden
I finally got to ask Ron Rivest something I'd been wondering my whole career: which came first, RSA signatures or RSA encryption? The latest episode of @a16zcrypto's First Principles was co-hosted with the one and only @danboneh. Don't miss the wild back-and-forth we had on the https://t.co/uPjcbZ94wG

Jul 31, 2026 Β· β₯ 59 Β· β 9
Tim Roughgarden @tim_roughgarden
New First Principles episode, co-hosted with the inimitable @skominers, featuring the legendary economist Paul Milgrom. Hard to pick a favorite bit. 24:20 for the loveliest explanation of the role of mathematics in economics that I've ever heard? 25:20 for tales of the famous https://t.co/mx4JN3UEYZ

Jul 28, 2026 Β· β₯ 65 Β· β 7
Tim Roughgarden @tim_roughgarden
I'll be joining MTS today at 10:30am PT to discuss some mixture of computation, AI + math, game theory, blockchains, etc. https://t.co/ArXe74pk83
Jul 17, 2026 Β· β₯ 35 Β· β 2
Invests in
Crypto & Web3
Experience
- Institute for Advanced StudyProfessorcurrent2026 β presentPrinceton, NJ
- Columbia UniversityDirector, Columbia-Ethereum Research Center for Blockchain Protocol Designcurrent2025 β presentNew York, NY
- Columbia UniversityProfessor of Computer Science (currently on leave)current2019 β presentNew York City Metropolitan Area
- Andreessen HorowitzHead Of Researchcurrent2022 β present
- Andreessen HorowitzResearch Partner2021
- Parallel Lines Consulting, LLCFounder and Presidentcurrent2018 β presentGreater New York City Area
- Soundlikeyourself Publishing, LLCFounder and Presidentcurrent2017 β presentNew York, New York, United States
- Stanford UniversityProfessor2004 β 2018
- The London School of Economics and Political Science (LSE)Visiting Professor2017 β 2018London, United Kingdom
Education
- Cornell UniversityDoctor of Philosophy (PhD), Computer Science1998 β 2002
- Stanford UniversityMS, Computer Science1997 β 1998
- Stanford UniversityBachelor of Science (BS), Applied Mathematics1993 β 1997
Skills & more
+1 more
PythonFrom Tim's professional profile.









