Kouhei Ueno
Senior Staff Software Engineer at Google
Chiyoda, Japan
Summary
🤩
Rockstar🎓
Top SchoolKouhei Ueno is a Senior Staff Software Engineer with 17 years’ experience specializing in distributed systems, storage and database engines, and 3D graphics rendering, currently driving Chrome’s loading and networking stack at Google. He leads cross-team technical strategy as an "uber" tech lead, has shipped multi-hundred-millisecond page-load improvements, and bootstraps new engineering projects and web platform APIs to make sites faster. A long-time Chromium/Blink contributor, he has practical open-source impact—authoring signed-exchange tooling and improving Ruby MySQL bindings and Web Platform Tests—that bridges browser internals, tooling, and standards. Trained in physics and computer science at Chiba University and the University of Tokyo, he combines deep systems thinking with hands-on engineering and a taste for designing distributed programming languages and storage architectures.
17 years of coding experience
1 year of employment as a software developer
University of Tokyobachelor, Physics, bachelor, Physics at 千葉大学 Chiba University
English, Japanese
Github Skills (18)
es6-modules10
javascript10
cbor10
prepared-statements10
mysql10
utf10
testing10
ruby10
go10
web-standards10
cryptography10
html10
test-automation10
c119
dom9
Programming languages (10)
Github contributions (5)
WICG/webpackage
Jan 2018 - May 2019
Web packaging format
Role in this project:
Back-end Developer
Back-end DeveloperContributions:115 commits, 96 PRs, 49 pushes in 1 year 4 months
Contributions summary:Kouhei primarily contributed to the development of the `wicg/webpackage` repository, which focuses on web packaging format. They implemented a tool, `gen-signedexchange`, for generating signed exchanges. The user's work involved creating a CBOR encoder and integrating it into the `signedexchange` package for handling the serialization of signed exchanges. Furthermore, the user added features such as support for the latest envelope format and signature validation.
packaging
web-platform-tests/wpt
May 2017 - May 2022
Test suites for Web platform specs — including WHATWG, W3C, and others
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:6 reviews, 26 commits, 14 comments in 5 years
Contributions summary:Kouhei primarily focused on creating and modifying web platform tests (WPT) within the repository. Their contributions involved adding new test cases, fixing existing tests, and ensuring that the tests correctly evaluated browser behavior, particularly around ES6 modules and dynamic imports. They addressed issues related to error handling in dynamic imports, nonce propagation, and interactions with Signed Exchanges, which is essential for testing web standards. The work demonstrates a solid understanding of test automation and browser testing methodologies.
microsoft-edgetest-runnerspecssafarifirefox
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