Jason Miller
Principal Engineer at Shopify
Hamilton, Ontario, Canada
Summary
🤩
Rockstar🎓
Top SchoolJason Miller is a Principal Engineer with 16 years of experience, currently driving technical strategy across Shopify’s Admin and App Platform. He is the creator of Preact and a prolific JavaScript maintainer whose lightweight libraries power countless web experiences—he’s ranked #4 worldwide by project popularity. Jason blends deep front-end expertise in performance analysis, frameworks and tooling with hands-on improvements to major projects like Next.js, Chrome Labs tools and numerous tiny, high-impact libraries (microbundle, unistore, greenlet). Known for pragmatic, size- and speed-first engineering, he also brings systems thinking from prior developer-relations work at Google that focused on quantifying runtime performance for the open web. Based in Hamilton, Ontario, he pairs open-source leadership with production-grade architecture and build tooling fluency.
16 years of coding experience
13 years of employment as a software developer
-- Computer Engineering, -- Computer Engineering at University of Waterloo
English
Stackoverflow
2,314reputation
41kreached
43answers
0questions
javascript
top-5%
Github Skills (102)
parserator10
url-routing10
parser10
ui-components10
testing10
pwapp10
eventsource10
clipboard10
lessc10
web-development10
jsx10
fetch-api10
markdown10
javascript10
event-handling10
Programming languages (20)
Github contributions (5)
GoogleChromeLabs/prerender-loader
May 2018 - May 2021
📰 Painless universal pre-rendering for Webpack.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:4 releases, 1 review, 27 commits in 3 years
Contributions summary:Jason primarily focused on enhancing the functionality and reliability of the prerender-loader. Their contributions include improvements to the pre-rendering process, adding mock APIs to improve stability, and fixing issues related to different entry types. They also addressed an issue related to requiring Node builtins within the prerendered context, expanding the loader's compatibility. Additionally, the user introduced regex for more flexible matching and testing fixes.
webpack-pluginreactprerenderpre-renderingwebpack3
GoogleChromeLabs/size-plugin
Aug 2018 - Aug 2021
Track compressed Webpack asset sizes over time.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:12 releases, 1 review, 47 commits in 3 years
Contributions summary:Jason primarily contributed to the `size-plugin` repository, focusing on enhancements and bug fixes related to the core functionality of tracking Webpack asset sizes. They addressed issues around promise handling, implemented features for chunkhash support, and improved the output display. The user also refactored code for better compatibility with different Webpack versions and introduced options for compression and output customization.
webpack-pluginwebpack-loaderasset-webpackassetwebpack
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