Koutaro Chikuba
フリーランス
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolKoutaro Chikuba is a veteran software engineer with 14 years of experience specializing in front-end performance optimization and AI-driven automation, now working as a freelance engineer in Chiyoda, Tokyo. His background includes multi-year stints at Plaid and Quipper and recurring freelance engagements, reflecting both product-focused and client-facing development experience. He contributes to open-source projects like HonKit, where he modernized tests by migrating them to TypeScript and helped stabilize builds—evidence of his attention to long-term maintainability. With a foundation in human information sciences from Waseda University, he blends UX-aware thinking with practical engineering, often surfacing productivity gains that aren’t obvious from the UI alone.
14 years of coding experience
2 years of employment as a software developer
人間科学学士, 人間情報科学, 人間科学学士, 人間情報科学 at 早稲田大学
Stackoverflow
421reputation
15kreached
2answers
3questions
Github Skills (16)
gitbook10
typescript10
typescripts10
typescript-types10
testing10
jestjs9
javascript9
markdown-it8
markdown8
cicd8
storybook7
docbook7
textbook7
dynamic-import6
webpack6
Programming languages (17)
Github contributions (5)
honkit/honkit
Jun 2020 - Jun 2020
:book: HonKit is building beautiful books using Markdown - Fork of GitBook
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:13 commits, 3 PRs, 3 comments in 1 day
Contributions summary:Koutaro primarily focused on refactoring and rewriting tests within the HonKit repository, specifically targeting the `githon` package. These changes involved migrating tests to TypeScript, indicating a shift towards a more modern and type-safe development approach. Furthermore, the user updated several test files across various modules like `summaryArticle`, `parseBook`, and `website.js`, ensuring code quality and maintainability. The user also addressed build issues, suggesting involvement in the project's overall stability.
ebooknoteshonkitjavascriptplugin
mizchi-sandbox/grid-generator
Dec 2017 - Dec 2017
Contributions:51 commits, 28 pushes, 2 branches in 11 days
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