![Severin Hacker Photo](/system/files-encrypted/styles/large/encrypt/nasdaq_kms/people/2021/07/14/18-35-58/Severin_Hacker.png?itok=r-REaTEN)
Severin
Hacker
Co-founder, Chief Technology Officer & Board Director
![Severin Hacker Photo](/system/files-encrypted/styles/large/encrypt/nasdaq_kms/people/2021/07/14/18-35-58/Severin_Hacker.png?itok=r-REaTEN)
Severin Hacker, Ph.D. has served as our Chief Technology Officer and a member of our board since co-founding Duolingo with Luis von Ahn in August 2011. Severin holds a B.S. in Computer Science from Eidgenossische Technische Hochschule Zurich, Switzerland, and a Ph.D. in Computer Science from Carnegie Mellon University.