Jiayi Xie
Senior Data Scientist
New York City Metropolitan Area United States
Summary
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Senior🎓
Top SchoolJiayi Xie is a Senior Data Scientist in the NYC area with 11 years of experience turning large, noisy datasets into production ML systems across ad tech and e-commerce. With a PhD in Geophysics, Jiayi blends advanced statistical inversion and signal-processing expertise—experience that once entailed processing terabytes of seismic time series and authoring parallelized C/C++ tools—with pragmatic product-focused modeling for companies like Shopify and Xaxis. His work spans end-to-end ML: prototyping novel multi-KPI budget optimizers, live model selection via multi-armed bandits, CTR models that account for ad return value, and production pacing systems tested with A/B frameworks. Comfortable collaborating with product and engineering teams, he reliably ships scalable solutions that balance exploration and exploitation in real-time settings. Colleagues benefit from his rare combination of deep research rigor and hands-on production engineering.
11 years of coding experience
12 years of employment as a software developer
BS, geophysics, 3.92/4.3, BS, geophysics, 3.92/4.3 at University of Science and Technology of ChinaPhD, Geophysics, 3.9/4.0, PhD, Geophysics, 3.9/4.0 at University of Colorado Boulder
Chinese, English
Github Skills (7)
mongoose-plugin4
atlassian3
mongodb2
operation2
concurrent2
high-performance1
in-memory1
Programming languages (1)
Github contributions (5)
jiayixie/DSproject
Oct 2015 - May 2024
Contributions:27 pushes, 1 branch in 8 years 8 months
jiayixie/jy_prog_janus
Jan 2015 - Oct 2016
Contributions:66 commits, 54 pushes, 1 branch in 1 year 9 months
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