Portrait of Johannes Gehrke

Johannes Gehrke

Technical Fellow


Johannes Gehrke is a Technical Fellow at Microsoft, working on AI modeling and infrastructure for the Microsoft Copilots, and he is the head of machine learning for the Intelligent Communications and Conversations Cloud (IC3), which powers Microsoft Teams.  From 2020 to 2023, he was the Lab Director of Microsoft Research Redmond, and from 2013 to 2020, he held various roles in Microsoft product groups. Johannes designed and built the Office Graph (now the Microsoft Graph), Microsoft Delve, the Teams messaging service, and deep learning-based features in Teams such as noise suppression.

Johannes’ research interests are in the areas of database systems, distributed systems, and machine learning. He has received a National Science Foundation Career Award, an Arthur P. Sloan Fellowship, a Humboldt Research Award, the 2011 IEEE Computer Society Technical Achievement Award, the 2021 ACM SIGKDD Innovation Award, and he is an ACM Fellow and an IEEE Fellow.

Johannes co-authored the undergraduate textbook Database Management Systems (McGrawHill (2002), currently in its third edition), used at universities all over the world. He is a member of the ACM SIGKDD Executive Committee. From 1999 to 2015, Johannes was a professor in the Department of Computer Science at Cornell University where he graduated 25 PhD students, and from 2005 to 2008, he was Chief Scientist at FAST Search and Transfer.