Po-Shen Loh
Po-Shen Loh is an associate professor of mathematics at Carnegie Mellon University and the national coach of the United States' International Math Olympiad team. Under his coaching, the team won the competition in 2015, 2016, 2018, and 2019—their first victories since 1994. He had previously won a silver medal for the US as a participant in 1999. Loh runs a popular course to train students for the William Lowell Putnam Mathematical Competition known as Putnam Seminar and is the founder of the educational website Expii. He also teaches courses on discrete mathematics and extremal combinatorics at Carnegie Mellon. He graduated from the California Institute of Technology with a 4.3 GPA and was a Hertz Fellow at Princeton.
Loh is the lead developer of a contact-tracing app named NOVID that uses ultrasound technology to track COVID-19 infections. The name "NOVID" is a portmanteau of "no" and "COVID."
