Zhizhen Qin
Senior Software Engineer at Microsoft
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolZhizhen Qin is a Senior Software Engineer with a decade of experience building large-scale search and backend systems, currently contributing to Bing at Microsoft. He has a strong foundation from Stanford (MS) and Tsinghua (BS) and a track record that spans Google and Microsoft roles since 2012. Zhizhen focuses on performance-sensitive back-end engineering, exemplified by his contributions to LocustDB where he optimized query execution, memory management, and removed dependencies to boost efficiency. Comfortable in Rust and systems-level work, he pairs production experience with open-source curiosity and a knack for subtle correctness improvements (e.g., tightening LIKE semantics and preventing nested aggregations). Based in Seattle, he recruits and mentors while shipping high-impact search features at scale.
10 years of coding experience
5 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Tsinghua UniversityMaster's degree, Computer Science, Master's degree, Computer Science at Stanford University
Github Skills (8)
databases10
query-optimization10
rust10
analytics10
database10
data-structure9
data-structures9
regex8
Programming languages (21)
Github contributions (5)
cswinter/LocustDB
Sep 2018 - Feb 2019
Blazingly fast analytics database that will rapidly devour all of your data.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 commits, 5 PRs, 6 comments in 5 months
Contributions summary:Zhizhen primarily focused on improving the LocustDB query execution engine. Their contributions included fixing typos, updating the Rust toolchain, and removing dependencies. The user implemented features such as ensuring no nested aggregations and making the LIKE operator match the entire expression. Furthermore, they refactored code related to memory management and improved efficiency.
analyticsparallelrustsqlanalytics-database
zhzy0077/mtalk-ips
Apr 2021 - Feb 2022
A list of IPs for mtalk.google.com(aka Google FCM service) that connectable from Mainland China
Contributions:10 commits, 1 PR, 9 pushes in 10 months
chinaipsfcmmainland-china
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