Severin Hacker
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Severin Hacker is the CTO and cofounder of Duolingo. He co-founded the company in 2011 with Luis von Ahn, who had been his computer science Ph.D. thesis advisor at Carnegie Mellon University. On LinkedIn, Hacker says he has recently shifted into a more hands-on role at Duolingo focused on technical projects across the company while continuing to work with the leadership team on product and technology direction. He is known for cofounding Duolingo and leading its technology work.
Updated 11 September 2026
Public sources: linkedin.com forbes.com
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