Eiji Kitamura
Developer Advocate
Chiyoda, Japan
Summary
🤩
RockstarEiji Kitamura is a Developer Advocate based in Chiyoda, Japan with 14 years of experience building and promoting web platform features. At Google since 2010, he blends front-end polish and back-end rigor—contributing to high-profile projects like web.dev, html5rocks, and the WebAuthn ecosystem where he implemented server-side WebAuthn and device public key support. He consistently focuses on practical web standards, accessibility, and developer experience, from dialog polyfills and flexbox tutorials to payment and cross-origin isolation guidance. Comfortable across the stack, Eiji pairs production-grade Node.js and TypeScript work with content and UX improvements that help other developers adopt modern web APIs. An often-overlooked strength is his knack for simplifying complex spec details into usable examples and deployable demos that accelerate adoption.
14 years of coding experience
Chinese, Japanese
Stackoverflow
2,164reputation
316kreached
68answers
3questions
javascript
top-5%
polymer
top-5%
Github Skills (43)
javascript10
expressjs10
webauthn10
css10
user-authentication10
typescript10
authentication10
webpages10
dialog10
web-content10
security10
flexbox10
polyfills10
typescript-types10
html10
Programming languages (16)
Github contributions (5)
google/webauthndemo
Apr 2018 - Jan 2023
An example Node.js Relying Party implementation of the WebAuthn specification
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:12 reviews, 80 commits, 20 PRs in 4 years 10 months
Contributions summary:Eiji contributed significantly to the Node.js based WebAuthn demo, modifying both backend and frontend code. Their work included implementing various WebAuthn features and modifying UI components. They also worked on the project's configuration and deployment mechanisms, including improvements in error messaging and handling of environment variables. This user appears to be responsible for core functionality and overall project maintenance.
partywebauthnnode-jssecuritywebauthn-library
html5rocks/www.html5rocks.com
Oct 2012 - Mar 2014
....a top-notch resource for web developers
Role in this project:Front-end Developer
Front-end DeveloperContributions:55 commits, 2 PRs in 1 year 5 months
Contributions summary:Eiji primarily contributed to the front-end development of the html5rocks site, making updates to the "flexbox tutorial." The code changes involved modifying HTML and CSS to fix issues related to the flexbox tutorial and improve its visual presentation. These adjustments were focused on improving the user interface and ensuring the tutorial's accuracy and functionality. The user also worked on adding features such as Twitter Cards, OGP, and internationalization meta tags.
html5notchchrome
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