Yongwen Xu
Staff Software Engineer, Tech Lead at Pinterest
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJinwen Xu is a Machine Learning Engineer in San Francisco with 15 years of experience designing and delivering large-scale ML systems that bridge research and production. He has led multi-year, cross-functional programs at Facebook, Airbnb, Twitter and Pinterest—owning end-to-end architecture for privacy-aware ad products, omnichannel optimization, experiment platforms, and fraud detection systems that saved millions. Skilled in deep learning and causal inference, he pairs rigorous economic training (Ph.D. and M.A. from UBC) with pragmatic engineering judgment to turn complex business problems into reliable, auditable ML pipelines. At Pinterest he has contributed backend improvements to Teletraan, enhancing deploy rollback and storage workflows, showing a hands-on aptitude for infrastructure and stability work. Colleagues rely on him to translate product needs into scalable technical designs while navigating legal, sales, and operations constraints.
15 years of coding experience
16 years of employment as a software developer
Bachelor, Computer Science, Bachelor, Computer Science at University of Science and Technology of ChinaMaster, Computer Science, Master, Computer Science at Portland State UniversityPhD, Computer Science, PhD, Computer Science at University of Hawaii at Manoa
French, Chinese, Chinese, English
Stackoverflow
81reputation
3kreached
1answer
1question
Github Skills (16)
file-storage10
amazon-s310
python10
cloud-storage10
django9
rest-api8
json8
api-rest8
restful-api8
api-design8
heroku6
urllib6
curl6
python-ldap6
restlet6
Programming languages (6)
Github contributions (5)
pinterest/teletraan
Mar 2016 - Sep 2022
Teletraan is Pinterest's deploy system.
Role in this project:
Backend Developer
Backend DeveloperContributions:145 reviews, 60 commits, 112 PRs in 6 years 6 months
Contributions summary:Yongwen implemented and maintained features within Pinterest's deploy system, "Teletraan". Their contributions focused on enhancing the rollback functionality for a specific application ("ngapp2"), including adding rollback history, prompting for reasons, and storing the rollback information in S3. They also made changes to the S3 helper class, and templates, indicating involvement in backend logic, data storage, and potentially UI elements related to the deployment system. Furthermore, the user worked on bug fixes, merge commits, and configuration, solidifying their role in improving the system's stability and functionality.
dockerpinterest
yongwen/teletraan
Mar 2016 - Jun 2021
Teletraan is Pinterest's deploy system.
Contributions:113 pushes in 5 years 3 months
dockerpinterest
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