Qi Xiao is a senior Infrastructure Engineer and SRE with 17 years of experience building reliable systems and developer tooling at scale, most recently at Imbue and previously across multiple SRE and engineering roles at Google. A polyglot engineer comfortable in Go, TypeScript, Java, Python, C++ and more, Qi blends hands-on coding with tech leadership—designing monitoring, incident response, and CI/CD systems used by large teams. He is the author of the Elvish shell, a well-tested, BSD-licensed project with its own language, persistent-data structures, and custom delivery pipeline, and has made notable contributions to widely used shells like fish. Based in London and described on GitHub as a "Genius coding bear," Qi pairs deep systems knowledge with pragmatic UX and process improvements that make tooling more discoverable and reliable.
17 years of coding experience
7 years of employment as a software developer
Master of Science (M.Sc.) Computer Science and Engineering, Master of Science (M.Sc.) Computer Science and Engineering at Eindhoven University of Technology
Bachelor's degree Automation, Bachelor's degree Automation at Tsinghua University
English, Chinese, German, French, Dutch, Japanese, Greek, Latin, norse, old
Powerful scripting language & versatile interactive shell
Role in this project:
Back-end Developer
Contributions:11 releases, 260 reviews, 5840 commits in 9 years 9 months
Contributions summary:Qi's commits focus on implementing and debugging features within the Elvish scripting language and its supporting infrastructure. The user appears to have addressed SIGPIPE handling in pipelines by modifying code in `pkg/eval/compile_effect.go` and `pkg/eval/external_cmd.go`, which involved detecting and suppressing the signal. Further, they have worked on the `file:truncate` functionality, ensuring proper error handling and integer size limits. Finally, the user improved the order command to support all number types and made performance improvements to the temporary store.
Source code of the web interface of https://mirrors.tuna.tsinghua.edu.cn/
Role in this project:
Full-stack Developer
Contributions:48 commits, 3 PRs, 1 push in 3 years 10 months
Contributions summary:Qi primarily worked on the web interface of the mirror site, making changes to the `index.php` file. Their contributions involved adding a maintainer column, incorporating status updates from `ftp3.tsinghua.edu.cn`, and refining the layout and styling. They also made various enhancements including adding new mirrors and modifying the display of the table.
tsinghuaweb-interfacetunamirrorsedu
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