Jack Hsu
Member Of Technical Staff at OpenAI
San Francisco Bay Area United States
Summary
🤩
Rockstar🎓
Top SchoolJack Hsu is a seasoned software engineer with 12 years of experience building scalable web platforms and design-consistent front-end systems, currently a Member of Technical Staff at OpenAI after a long tenure at Pinterest. He has driven large-scale migrations—moving millions of lines from Flow to TypeScript and adopting GraphQL—and led web unification and performance initiatives that improved Core Web Vitals and developer consistency. At Pinterest he contributed to the company’s React design system (Gestalt), adding accessible and testable UI components, and has hands-on open-source experience modernizing MEAN-stack front-ends and test suites. Previously a Director of Engineering and early web developer, he blends leadership with deep full-stack execution across frontend, backend, and tooling. Based in Fremont, CA, he pairs strong academic foundations (UCLA MS; UC Berkeley BS) with a practical penchant for shipping reliable, developer-friendly infrastructure. A detail that often surprises colleagues: he’s equally comfortable resolving production build issues (Uglify mangle quirks) as designing UX-focused components.
13 years of coding experience
20 years of employment as a software developer
BS, Electrical Engineer and Computer Science, BS, Electrical Engineer and Computer Science at University of California, BerkeleyUniversity of California, Los Angeles
English, Chinese
Github Skills (22)
javascript10
expressjs10
ui-components10
carbon-design-system10
system-design10
react10
angular10
testing9
jes9
mongodb-database9
css9
jtest9
nodejs9
jestjs9
mongodb9
Programming languages (5)
Github contributions (5)
pinterest/gestalt
Jul 2018 - Jan 2023
A set of React UI components that supports Pinterest’s design language
Role in this project:
Front-end Developer
Front-end DeveloperContributions:27 reviews, 30 commits, 87 PRs in 4 years 6 months
Contributions summary:Jack primarily contributed to the development of React UI components for the Pinterest design language, as indicated by the commits focusing on the `Collage` and `SegmentedControl` components. Their work involved creating new components, adding documentation, and implementing testing. They also addressed the modification of existing components by adding the `padding` prop to the `Pog` and `IconButton` components and `accessibilitySelected` and `role` props to the `Link` component.
reactui-componentsjavascriptdesign-system
linnovate/mean
Mar 2014 - Mar 2014
The MEAN stack uses Mongo, Express, Angular(6) and Node for simple and scalable fullstack js applications
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:8 commits in 2 days
Contributions summary:Jack primarily contributed to front-end and testing aspects of the MEAN stack application. Their work included fixing broken links on login and register pages, modifying the UI/UX by updating the "sign in/sign out" and "register" terminology, and ensuring the tests are passing by including the right files based on server/config/assets.json. They also addressed production issues related to the "mangle" option in the Uglify process.
full-stackjsmean-stackmongodbstack
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