Lei Duan is a Senior Software Engineer with eight years of experience building large-scale internet products at Google, based in Mountain View. He holds a Master’s in Computer Application Technology and a Bachelor’s in Computer Science from Peking University, reflecting a strong academic foundation paired with deep engineering practice. At Google since 2015, Lei has progressed from software engineer to senior engineer, contributing to production systems that serve millions of users. He combines systems-level thinking with practical delivery, often bridging research-level ideas from his graduate training into production features. Colleagues describe him as a pragmatic problem solver who values readability and reliability in code, and who thrives in cross-functional teams. While not an outspoken open-source presence, his steady, long-term impact at a major platform underscores an ability to navigate complex distributed systems and scale services effectively.
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