Ryan Bae
Senior Machine Learning Engineer at Reddit, Inc.
Seattle, Washington, United States
Summary
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Senior🎓
Top SchoolRyan Bae is a Senior Machine Learning Engineer with nine years of experience building end-to-end ML systems for cloud and on-device use, currently focused on engagement modeling for Reddit’s monetization org. He has deep expertise in content understanding, ads ranking, and NLP/NLU workflows including fine-tuning and evaluating large language models, and has published work on an LLM-based retrieval system presented at CIKM 2025. At Microsoft he bridged product and research by prototyping on-device models for Windows, applying mixed-effects statistics to fairness problems, and creating large-scale pattern-less personal data detection for telemetry. Comfortable across applied statistics, feature engineering, and production pipelines, he uniquely combines aerospace-trained analytical rigor with practical ML delivery across consumer and ad platforms. Based in Seattle, he blends research-grade experimentation with measurable product impact, especially in scenarios where privacy, device constraints, and ranking performance intersect.
9 years of coding experience
11 years of employment as a software developer
Master of Science - MS, Data Science, Master of Science - MS, Data Science at University of WashingtonMaster of Science (MS), Aerospace Engineering, Master of Science (MS), Aerospace Engineering at University of MichiganUniversity of California, Los Angeles
English, KoreanGithub contributions (5)
ryanbae89/ryanbae89.github.io
Sep 2018 - May 2023
Contributions:61 pushes, 1 branch in 4 years 8 months
ryanbae89/DataScienceExercises
Jul 2017 - Oct 2017
Contributions:10 commits, 9 pushes, 1 branch in 2 months
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