Tianyin Xu
Watchman
California, United States
Summary
👤
Senior🎓
Top SchoolTianyin Xu is an experienced software engineer with 13 years focused on back-end systems, distributed platforms, and DevOps, currently based in California and serving as a Watchman at the University of Illinois. He has contributed to high-profile open-source projects like Squid (improving stability and fixing integer overflow and cache issues) and Alluxio (streamlining build/deploy and CI integrations), showing a strong emphasis on code quality and maintainability. His background spans research and industry roles at Microsoft Research, Facebook, and NetApp, blending hands-on debugging with infrastructure and CI/CD improvements. Holding advanced studies in computer science from UC San Diego and Nanjing University, he pairs academic rigor with practical production experience. Notably, he describes himself whimsically as a "Watchman in the cornfield," hinting at a thoughtful, observant approach to engineering and systems reliability.
13 years of coding experience
University of California, San DiegoMaster of Engineering Distributed Systems and Computer Networks, Master of Engineering Distributed Systems and Computer Networks at Nanjing University
English, Chinese
Github Skills (21)
debugging10
debug10
c-language10
configuration-management10
http10
proxy10
proxy-server10
alluxio10
java10
cicd10
javas10
parsing10
proxies10
error-handling10
text-parsing10
Programming languages (11)
Github contributions (5)
Alluxio/alluxio
Jun 2015 - Dec 2015
Alluxio, data orchestration for analytics and machine learning in the cloud
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:53 commits, 15 PRs, 65 comments in 6 months
Contributions summary:Tianyin's contributions primarily involve modifications to the build and deployment process, as seen by changes to Ruby scripts for Javadoc generation, and test configurations. They have also made code changes to enhance the comments of the underlying Tachyon system, and also refactored the implementation to the current codebase. These changes indicate a focus on improving the software's maintainability, documentation, and overall build process. The inclusion of adding the "-" parameter to trigger Jenkins demonstrates a key involvement in the CI/CD pipeline.
data-analysisvirtual-distributed-filesystemanalyticsorchestrationdata-science
squid-cache/squid
Dec 2012 - Mar 2013
Squid Web Proxy Cache
Role in this project:Back-end Developer
Back-end DeveloperContributions:16 commits in 2 months
Contributions summary:Tianyin primarily focused on bug fixes and improvements related to the Squid Web Proxy Cache. Their contributions involved addressing issues such as variable assignments, debugging cache directory issues, and fixing 32-bit overflow errors. They also improved configuration parsing validation by updating functions, adding protections against integer overflow, and providing deprecation and error messages for invalid options. This indicates a focus on code quality and stability within the project's core functionality.
proxycache-proxyweb-proxycacheicap
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