James Leoni is currently a Senior Machine Learning Engineering Manager at Spotify since 2025. Previously, they served as the Head of Machine Learning at Papercup from 2022 to 2025, and held various roles at Amazon Web Services (AWS) from 2021 to 2022, including Manager of AI and Machine Learning Solutions Architecture EMEA. Earlier in their career, James worked as a Junior Data Scientist at Featurespace in 2017 and briefly as a Graduate Teaching Assistant at the University of California, Santa Barbara in 2015-2016. James earned an MASt in Applied Mathematics from the University of Cambridge and a First Class Honours MSci in Natural Sciences from Durham University, specializing in Physics and Mathematics.
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