Kohei Hiraga
Software Engineer at Node.js
Tokyo, Japan
Summary
🤩
Rockstar🎓
Top SchoolKohei Hiraga is a software engineer based in Tokyo with eight years of experience building browser and web platform features for high-traffic products. He has shipped SDKs, UI components, and web apps for a MINI App platform with millions of daily users and served as Senior Software Engineer at LY Corporation and Software Engineer at LINE. As a Node.js Core Collaborator, Kohei focuses on the repl, debugger, and inspector modules—improving debugger reliability, adding tests, and hardening inspector error handling within one of the most widely used JavaScript runtimes. He now applies that low-level runtime and browser expertise to browser development at Nintendo Systems, bridging deep backend debugging knowledge with front-end platform work. Kohei holds a bachelor’s degree in computer science from Tokyo Institute of Technology and is notable for combining production-scale product delivery with sustained, high-impact open-source maintenance.
8 years of coding experience
5 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Tokyo Institute of Technology
Github Skills (7)
debugging10
debug10
nodejs10
javascript10
runtimes10
inspector10
testing9
Programming languages (8)
Github contributions (5)
nodejs/node
Mar 2022 - Nov 2022
Node.js JavaScript runtime ✨🐢🚀✨
Role in this project:
Back-end Developer
Back-end DeveloperContributions:123 reviews, 108 commits, 54 PRs in 8 months
Contributions summary:Kohei primarily contributed to fixing bugs and improving the Node.js runtime debugger. Their work involved correcting typos in debugger-related files, fixing an issue with inconsistent inspector output, and enhancing code coverage for inspector connection errors. Additionally, they added tests for debugger features and improved the handling of errors within the debugger, demonstrating a focus on improving the debugging experience within the Node.js environment. The commits involved changes across multiple core files within the Node.js project, highlighting a deep involvement with the internal debugger.
windowsnode-jsjavascriptlinuxruntime
line/liff-mock
Apr 2022 - Nov 2022
LIFF Mock is a LIFF Plugin that make testing your LIFF app easy.
Contributions:3 releases, 6 reviews, 19 commits in 7 months
liff-sdktestingmockingliffmock
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