Sergei Radutnuy
Senior Machine Learning Engineer at Pinterest
United States
Summary
👤
Senior🎓
Top SchoolSergei Radutnuy is a Senior Machine Learning Engineer with 11 years of experience designing and shipping production ML systems across ads, search, and recommendation domains. He currently drives candidate generation, relevance, ranking, auction, and allocation at Pinterest, after building ranking and topic-modeling capabilities at OpenTable and ads optimization and real-time bidding systems at WalmartLabs. Trained in mathematics with minors in computer science and electrical engineering from UC San Diego, he blends theoretical rigor with practical implementation finesse—comfortable from model formulation to latency-sensitive engineering trade-offs. Known for tackling end-to-end complexity, Sergei repeatedly bridges research-level ideas and production constraints to improve relevance and conversion metrics. Colleagues rely on him for subtle implementation decisions that materially affect system behavior under scale.
11 years of coding experience
2 years of employment as a software developer
University of California, San Diego
English
Github Skills (2)
java5
data-structures5
Programming languages (1)
Github contributions (5)
sergsr/aads
Aug 2014 - Jan 2020
Contributions:111 commits, 6 PRs, 80 pushes in 5 years 6 months
problemsdata-algorithmscompetitive-programmingjavadata-structures
sergsr/dotfiles
Jul 2015 - Sep 2020
Contributions:20 pushes, 2 branches, 3 issues in 5 years 3 months
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