Pu Xiao
Software Engineer at TikTok
San Jose, California, United States
Summary
🤩
Rockstar🎓
Top SchoolPu Xiao is a software engineer with six years of experience focused on backend, distributed systems, and cloud infrastructure, currently at TikTok after completing a master's in Software Engineering at Carnegie Mellon. At DigitalOcean, Pu designed and shipped a production-grade Delete Cooldown feature spanning Go, Temporal workflows, gRPC/REST APIs, and CI/CD canary validation, honing pragmatic distributed-systems design and cross-team coordination. Earlier roles combined full-stack engineering and ML research—building scalable microservices, Spark image pipelines, real-time WebSocket systems, and a GCN-based ASD diagnostic model—demonstrating both production delivery and research rigor. An active open-source contributor, Pu has improved and modernized code and docs in the prominent three.js library, bridging graphics tech like Three.js, WebGPU, Rust, and WebAssembly with backend expertise. Colleagues describe Pu as someone who favors clarity and resilience in complex systems and thrives in fast-moving, collaborative teams. Outside of engineering, Pu is an amateur chef and avid trail walker, often using long walks to iterate on design ideas.
6 years of coding experience
2 years of employment as a software developer
Bachelor of Engineering - BE Artificial Intelligence, Bachelor of Engineering - BE Artificial Intelligence at Tianjin UniversityMaster's degree Computer Software Engineering, Master's degree Computer Software Engineering at Carnegie Mellon University
Stackoverflow
11reputation
107reached
4answers
1question
Github Skills (15)
webgl10
javascript10
documentation10
3d10
html8
iterable6
npm6
firefox6
eigen6
trigonometry6
google-chrome6
typescript6
webgpu6
coordinate-systems6
graphic6
Programming languages (10)
Github contributions (5)
mrdoob/three.js
Dec 2020 - Nov 2022
JavaScript 3D Library.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:7 reviews, 22 commits, 61 PRs in 1 year 10 months
Contributions summary:Pu primarily contributed to documentation updates and refactoring of the `three.js` library. They updated documentation related to `WebGLRenderTarget`, `Material`, `Color`, `Matrix3`, `Matrix4`, `Spherical`, `Box3`, `Plane`, and `Quaternion`. They also addressed event handling and code modernization by replacing deprecated `keyCode` with `code` and added event handling with `{ passive: false }`. Additionally, they modified and updated various example files, including changes in `index.html`, `webgl_panorama_cube.html`, and several control examples.
virtual-realitysvgwebglcanvasjavascript
puxiao/threejs-tutorial
Nov 2020 - Sep 2022
Three.js 系列教程，学习和探索 Three.js 世界。
Contributions:94 commits, 4 PRs, 113 pushes in 1 year 9 months
reactwebgljavascriptthreejstypescript
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