Hanย Jiang
Senior Tech Lead Manager, Machine Learning at Instagram
Menlo Park, California, United States
Summary
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Top SchoolHan Jiang is a senior tech lead manager in machine learning with 13 years of experience building large-scale ML systems for social platforms, now leading content relevance and freshness efforts at Instagram from Menlo Park. He founded and scaled Facebookโs Feed representation research team, delivering 270+ launches across 3 years that improved engagement and revenue for billions of users and grew cross-functional influence to 150+ engineers. Deep expertise spans user and object embedding, multi-task learning, personalization, and ranked searchโrooted in early contributions to Apache Lucene and a Knowledge Graph internship at Google. Han blends research and product rigor with people leadership, designing career ladders and collaboration frameworks that convert junior talent into senior and staff engineers. He holds MS and BS degrees in Computer Science from Peking University with a minor in economics, a background that informs both technical depth and product-minded tradeoffs. An unexpected thread in his career is long-standing open-source search work, which underpins his practical approach to retrieval and ranking problems at scale.
13 years of coding experience
Master of Science (MS) Computer Science, Master of Science (MS) Computer Science at Peking University
Github Skills (8)
lucene10
javas10
backend10
java10
searching10
data-structure9
data-structures9
algorithms9
Programming languages (3)
Github contributions (5)
sleepsort/se
Mar 2013 - May 2013
Contributions:311 commits in 1 month
sleepsort/elearner
Mar 2015 - Jun 2015
Contributions:67 pushes in 2 months
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