Hangfei Lin
Staff Software Engineer at Google
Nanjing City, Jiangsu, United States
Summary
👤
Senior🎓
Top SchoolHangfei Lin is a Staff Software Engineer with nine years of experience building large-scale AI infrastructure and feature/model-serving systems, currently working on Gemini post-training, agents RL, and contributing to Google’s adk-python. Previously at LinkedIn he architected Feathr feature store pipelines, large-model training, and embedding-based retrieval, scaling feature and label preparation for production workloads. He combines hands-on systems engineering with product-minded design, informed by user studies and extensive work in open-source community management and advisory roles since 2015. His background spans data analytics and materials science research, reflecting a rare blend of deep engineering, applied research, and product innovation. Based in Nanjing, he brings cross-cultural experience across U.S. and China engineering environments and a Stanford Ignite certificate in innovation and entrepreneurship. A subtle throughline in his career is turning research-grade ideas into resilient, production-grade infrastructure that serves real ML workloads.
9 years of coding experience
12 years of employment as a software developer
Stanford Ignite Certificate Program in Innovation and Entrepreneurship, Stanford Ignite Certificate Program in Innovation and Entrepreneurship at Stanford University Graduate School of BusinessFuzhou No.1 Middle SchoolBachelor of Science (BS) Materials Science, Bachelor of Science (BS) Materials Science at Nanjing UniversityMaster of Science (MS) Computer and Information Sciences General, Master of Science (MS) Computer and Information Sciences General at University of Pennsylvania
English, Chinese, Japanese
Stackoverflow
107reputation
6kreached
3answers
0questions
Github Skills (21)
gateway10
kong-plugin9
coredns9
ingress9
api-gateway9
cloud-native9
kong9
microservices8
ingress-controller8
golang8
kubernetes7
etcd7
integration-testing6
mockito6
django-models6
Programming languages (3)
Github contributions (5)
waveBridge/PECRP
Sep 2017 - May 2018
Contributions:37 commits, 34 pushes in 8 months
mirror58229/higress
Dec 2024 - Apr 2025
🤖 AI Gateway | AI Native API Gateway
Contributions:21 pushes, 1 branch in 3 months
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