Yuanqing Lei
软件工程师 at TikTok
San Jose, California, United States
Summary
🤩
Rockstar🎓
Top SchoolYuanqing Lei is a software engineer and Columbia MS candidate in Computer Science with eight years of engineering experience and a strong record at ByteDance/TikTok, where he progressed from intern to full-time engineer. He builds full-stack web tools and backend systems, notably designing query-log databases and a web app for interface performance testing used in weekly operational reviews. Yuanqing contributes to prominent open-source work on Apache IoTDB as a back-end and database refactorer, including bug fixes and storage/configuration improvements that reflect deep file-system and database configuration knowledge. Based in San Jose, he combines rigorous academic training (Tsinghua BE, Columbia MS 3.97/4.0) with practical production experience in cross-functional, global teams. He’s focused on automation, observability, and making engineering workflows more efficient, and is currently seeking software engineering internship opportunities to keep building tools that simplify everyday problems.
8 years of coding experience
2 years of employment as a software developer
Master of Science - MS, Computer Science, 3.97/4.0, Master of Science - MS, Computer Science, 3.97/4.0 at Columbia UniversityBachelor of Engineering - BE, Bachelor of Engineering - BE at Tsinghua University
Github Skills (10)
javas10
database-management10
databases10
apache-iotdb10
server-configuration10
database-connection10
java10
database10
filesystem9
file-management9
Programming languages (11)
Github contributions (5)
apache/iotdb
Mar 2019 - Jan 2023
Apache IoTDB
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:1 release, 4 reviews, 183 commits in 3 years 9 months
Contributions summary:Yuanqing's commits primarily revolve around code refactoring, which suggests a focus on improving the existing codebase of the Apache IoTDB project. The commits involve significant modifications in the `TsfileDBConfig.java` file, especially concerning path update and data directory adjustment, which implies work related to database configuration and potentially data storage management. The user also fixed a bug in data directories, showcasing a strong understanding of the project's internal structure and file system interactions.
tdenginenosqlapachebig-datadatabase
LeiRui/iotdb
Jun 2021 - Mar 2025
Apache IoTDB
Contributions:346 pushes, 75 branches in 3 years 10 months
apachebig-dataiotdbjavaiot
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