William Chen

William Chen is currently the Vice President of Quantitative Research at Two Sigma, a prominent quantitative investment management firm. He has held this position since January 2023, after previously serving as a Quantitative Researcher at the same company since May 2019.12

Education and Early Career

William Chen graduated from Harvard University, where he earned both a Bachelor of Arts in Statistics and a Master of Science in Applied Mathematics. His academic tenure spanned from 2010 to 2014.12 During his time at Harvard, he also worked as a Teaching Fellow in the Statistics Department from January 2012 to December 2013.1

Before joining Two Sigma, Chen was a Data Science Manager at Quora from July 2017 to April 2019, where he had previously worked as a Data Scientist from July 2014 to April 2019. He began his career with internships, including roles as a Data Science Intern at Quora and a Data Analyst Intern at Etsy.12

Contributions and Interests

William Chen has shared insights on data science through various platforms, including tips for succeeding in data science interviews and building compelling data science portfolios. He is also known for creating resources such as a probability cheatsheet co-written with Professor Joe Blitzstein.2 His personal website features additional resources and insights related to data science.2

Overall, William Chen's background combines strong academic credentials with extensive experience in quantitative research and data science across notable tech companies.