Wenqin Ye
Software Engineer at MongoDB
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolWenqin Ye is a software engineer with 11 years of experience specializing in distributed systems correctness, concurrency, and cross-layer interactions across sharding, replication, and storage. Based in New York, Wenqin currently works on MongoDB’s Sharding team, focusing on debugging and hardening core database components to ensure reliable, consistent behavior at scale. Their contributions to the public mongodb/mongo repository include bug fixes and race-condition mitigations in session catalog management, performance counters, and safeguards around feature compatibility and cluster explain behavior. Prior internship work improved distributed sync startup latency and built analytics tooling for large-scale data and education platforms, reflecting a balance of low-level systems rigor and user-facing metrics. Known for tackling subtle concurrency issues, Wenqin combines academic training from the University of Toronto with practical production experience shipping database-level fixes used by a widely adopted open-source database.
11 years of coding experience
1 year of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at University of Toronto
Chinese, English
Github Skills (12)
databases10
c-language10
cprogramming-language10
mongodb10
back-end-development10
sharding10
relational-databases10
sql-database10
mongodb-database10
database10
error-handling9
performance-tuning8
Programming languages (8)
Github contributions (5)
mongodb/mongo
Oct 2022 - Jan 2023
The MongoDB Database
Role in this project:
Back-end Developer / Database Engineer
Back-end Developer / Database EngineerContributions:6 commits in 3 months
Contributions summary:Wenqin contributed to several bug fixes and implemented improvements related to the MongoDB database. They addressed issues in session catalog management, including race conditions, and added counters for performance metrics. Furthermore, the user modified code related to explain commands, ensuring correct behavior in various scenarios, specifically around cluster operations and FCV transitions. Their work also included preventing downgrading to FCV lower than 7.0 when the catalog shard contains user data.
nosqlc-plus-plusmongodb-databasedatabasemongodb
MaanavD/Shifter
Aug 2017 - Aug 2017
Contributions:18 pushes, 1 branch in 1 day
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