Lee Xiong is a seasoned professional in the field of machine learning and software engineering, currently serving as a Machine Learning Researcher and Engineer at Meta since February 2025, focusing on foundational and ranking AI for monetization. Previously, Lee held the position of Principal Software Engineering Manager at Microsoft from February 2016 to December 2022, where significant contributions included the invention of an advanced embedding training technique published at ICLR 2021, enhancing retrieval algorithms in natural language processing. Before that, Lee was the Executive Officer and Vice Director of Research at Rakuten from December 2022 to February 2025, managing a global team dedicated to AI development in search and recommendation systems. Lee Xiong began a career in research as a DAAD RISE Scholar at the University of Oldenburg in 2012, specializing in multichannel room acoustic signal de-reverberation techniques. Lee earned a Bachelor of Science degree in Computer Engineering from Rice University, graduating with a GPA of 3.94 in 2014.
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