Lei He
Principal Scientist MGR at Microsoft
Beijing, China
Summary
🤩
Rockstar🎓
Top School
Top expert inHigh-Performance Computing and Networking Technologies
Lei He is a Principal Scientist and engineering manager based in Beijing with 11+ years leading applied speech technology teams, currently heading speech science at Microsoft China. He brings deep research roots from a PhD in Computer Science at Tsinghua and a decade of R&D leadership at Toshiba, where he built compact, noise-robust embedded speech recognition and speech-to-speech translation systems. Hands-on and research-savvy, he blends algorithmic expertise with production-level engineering, evidenced by contributions to high-performance C++ infrastructure like the widely used apache/brpc RPC framework to improve concurrency and reliability. He excels at turning advanced acoustic modeling and synthesis research into scalable products for constrained environments and diverse Mandarin dialects. Colleagues describe him as a pragmatic innovator who bridges academic rigor and industrial delivery while mentoring multidisciplinary teams.
11 years of coding experience
8 years of employment as a software developer
Doctor of Philosophy (Ph.D.), Computer Science, Doctor of Philosophy (Ph.D.), Computer Science at Tsinghua UniversityBachelor of Engineering - BE, Computer Science, Bachelor of Engineering - BE, Computer Science at 清华
Chinese, English
Github Skills (10)
rpc10
c-language10
concurrent10
cprogramming-language10
circuit-breaker10
grpc10
concurrency10
debug9
debugging9
code-optimization9
Programming languages (5)
Github contributions (5)
apache/brpc
Jun 2018 - Dec 2022
brpc is an Industrial-grade RPC framework using C++ Language, which is often used in high performance system such as Search, Storage, Machine learning, Advertisement, Recommendation etc. "brpc" means "better RPC".
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 reviews, 91 commits, 45 PRs in 4 years 6 months
Contributions summary:Lei primarily focused on enhancing the brpc framework, making changes to the concurrency limiter and circuit breaker. Their work included optimizing the gradient concurrency limiter, fixing code style issues, and fixing bugs in the communication protocol. Furthermore, the user addressed several compilation and run-time issues. These changes suggest a focus on improving the performance and reliability of the RPC framework.
rpcadvertisementindustrialrecommendationgrade
TousakaRin/regular-expression
May 2015 - Jun 2021
Contributions:75 commits, 45 pushes, 1 branch in 6 years 2 months
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