Ashley C. is a senior data scientist with extensive experience in machine learning and data optimization. Currently at StubHub since October 2025, Ashley previously worked at ZipRecruiter from May 2022 to October 2025, where leadership was provided for the Click-to-Apply LightGBM model within the Marketplace Optimization Team, enhancing campaign budget utilization through improved bidding precision. Prior experience includes a role as a senior data scientist at Foursquare from April 2020 to April 2022, focusing on the accuracy and freshness of global location data, and earlier as a data scientist at Factual Inc. from October 2018 to April 2020, where geocoding machine learning models were developed for assigning geographical coordinates to places of interest. Ashley holds a Bachelor’s Degree with a double major in Applied Math and Statistics from UCLA.
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