Timothy Gu
Software Engineer at Stripe
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolTimothy Gu is a software engineer with 13 years of experience, currently at Stripe and formerly affiliated with Stanford, UCLA, Google, and Tesla. He combines deep Node.js runtime and web standards expertise with practical full‑stack skills—evidenced by contributions to high‑profile projects like Node.js, Acorn, jsdom, and the WHATWG/TC39 specs. Timothy’s open‑source work spans low‑level performance and systems work (Haiku, MXE) to web platform conformance and test automation (web-platform-tests, test262), showing both systems intuition and standards rigor. He frequently improves documentation and specifications, helping prevent common implementation mistakes in Web IDL and URL standards. Based in Seattle, he blends thoughtful technical writing with hands‑on code changes, from parser internals to browser API behavior. A subtle thread through his contributions is a focus on correctness and interoperability across the JavaScript ecosystem.
13 years of coding experience
Stanford University
English, Chinese, Spanish, Shanghainese
Stackoverflow
3,777reputation
457kreached
35answers
3questions
ffmpeg
top-5%
v8
top-5%
javascript
top-5%
image
top-5%
Github Skills (98)
parser10
video-encoding10
arraybuffer10
testing10
http10
standard-js10
standardized10
haiku10
low-level-programming10
specification10
encoding10
tern10
fetch-api10
operating-system10
code-optimization10
Programming languages (30)
Github contributions (5)
stevekane/promise-it-wont-hurt
Apr 2015 - Apr 2016
A Workshopper module that teaches you to use promises in javascript
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:85 commits, 30 PRs, 69 pushes in 1 year
Contributions summary:Timothy primarily contributed to the "promise-it-wont-hurt" repository, which is designed to teach JavaScript promises. Their work involved refactoring and converting existing code to ES6 promises, and fixing issues. The user also added additional checks and tests to exercises to ensure the correctness of the solution. Furthermore, they incorporated changes related to coding style and internationalization.
workshopperjavascriptpromisesnodejs
node-fetch/node-fetch
Oct 2016 - Jul 2018
A light-weight module that brings the Fetch API to Node.js
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:5 releases, 8 reviews, 124 commits in 1 year 9 months
Contributions summary:Timothy's contributions primarily focused on modernizing and improving the `node-fetch` library. They refactored the codebase, converting files to ES2015 syntax and implementing an iterable interface for the Headers class. Key changes include supporting Blob objects, array buffers, and various character encodings to ensure wider compatibility and more robust response handling. The user also streamlined request handling, making it more compliant with the Fetch Standard.
apilight-weightlightnode-jshttp-client
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