Simeng Yang
Member Of Technical Staff at OpenAI
Ontario, United States
Summary
👤
Senior🎓
Top SchoolSimeng Yang is a machine learning engineer with nine years of experience building recommendation and retrieval systems at scale, currently a Member of Technical Staff at OpenAI following a senior tenure at Meta. At Meta and Threads he shipped GPU-accelerated streaming retrieval models and novel cold-start architectures that materially improved session metrics, content freshness, and long-term user value. He has deep hands-on experience across the ML lifecycle—from ETL and feature engineering to PyTorch model development and production serving—plus a track record of reducing unoriginal content and improving engagement on Instagram Reels. A UWaterloo CS alum, he has interned at Microsoft and Facebook where he optimized distributed ML pipelines and high-throughput prediction infrastructure. Notably, he built an LLM-based RAG onboarding agent to speed ramp-up for new hires, reflecting an interest in developer productivity and tooling as well as core modeling. Based in Ontario, he pairs product-minded experimentation with infrastructure reliability work across large consumer-scale systems.
9 years of coding experience
6 years of employment as a software developer
Ontario Secondary School Diploma, Ontario Secondary School Diploma at Westmount Secondary SchoolBachelor of Computer Science, Bachelor of Computer Science at University of Waterloo
English, Chinese
Stackoverflow
11reputation
2kreached
3answers
0questions
Github Skills (27)
dimensionality-reduction9
projection9
topological-data-analysis9
arduino-library9
approximation9
manifold8
uniform8
visualization7
blink7
arduino7
gaussian6
fizzbuzz6
optimization6
derivative6
opencv6
Programming languages (3)
Github contributions (5)
simeng-yang/Student-Database-Management-System
Jul 2016 - Dec 2019
Contributions:1 release, 54 commits, 53 pushes in 3 years 6 months
simeng-yang/simeng-yang
Aug 2020 - Jul 2023
Contributions:7 pushes, 1 branch in 2 years 11 months
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