Michael Roizner is a Software Engineer at Meta, specializing in Core Ads Growth since September 2025. Previously, Michael served as a Senior Staff ML Engineer at X from April 2024 to July 2025, where significant advancements were made in the recommendation systems for user engagement. Prior to that, a tenure at Microsoft as Principal Applied Scientist involved optimizing ranking objectives for the Microsoft Start Feed. Michael's extensive experience at Yandex spanned over 14 years, where leadership roles included Technical Lead Manager and Staff Software Engineer, contributing to the development of core recommendation platforms and algorithms across various products. Michael holds a Ph.D. in Mathematics and multiple degrees in Mathematics and Computer Science from Lomonosov Moscow State University and Yandex School of Data Analysis.
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