John Pentakalos is a data scientist currently working at Glean since November 2023, focusing on the development of Glean's AI Assistant. Prior to this role, John served as a Senior Data Scientist in Analytics at Robinhood from October 2021 to October 2023, contributing to the launch of Robinhood's debit card. Earlier experience includes a position as a Data and Applied Scientist II at Microsoft from August 2019 to September 2021, where John specialized in personalizing game recommendations for Xbox, optimizing a multi-armed bandit recommender system. Educational background includes studies at the University of Virginia (2016-2019) and Cornell University (2015-2016), as well as a high school education at Thomas Jefferson High School for Science and Technology, with a focus on computer science.
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