Hiroo Takaku
Senior Product Manager at LINEヤフー株式会社
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolHiroo Takaku is a Senior Product Manager based in Chiyoda, Japan, with 13 years of experience bridging hands-on software engineering and product leadership. He has led end-to-end product development for over seven years while drawing on more than a decade of full-stack engineering work across Android, JavaScript, Java, and web frontends. At LINEヤフー, he combines technical depth with product strategy to ship robust authentication and user-facing services, including back-end improvements to the widely used LINE Login starter to strengthen error handling and web login flows. His academic background in international relations gives him a broader perspective on user needs and cross-cultural product fit. Driven by a mission to "push the human race forward," he excels at turning complex technical requirements into clean, user-centered releases. Colleagues describe him as a pragmatic builder who still codes when it matters, ensuring product decisions stay grounded in implementation realities.
13 years of coding experience
Bachelor's degree International Relations, Bachelor's degree International Relations at Daito Bunka University
Github Skills (8)
javas10
error-handling10
web-development10
web-application10
webapp10
spring10
java10
url-encoding9
Programming languages (5)
Github contributions (5)
line/line-login-starter
May 2016 - Dec 2017
LINE Login starter application
Role in this project:
Back-end Developer
Back-end DeveloperContributions:19 commits, 18 PRs, 14 pushes in 1 year 7 months
Contributions summary:Hiroo primarily focused on improving the LINE Login starter application by implementing error handling mechanisms and improving URL encoding. They added error pages and logic to handle session and login errors. Furthermore, the user updated the code to support LINE web login version 2, including changes in API interactions and redirect URLs. They made various adjustments, including a property name change, to facilitate the application's authentication flow.
line-loginlogin-pagespringlogin-systemjava
cosmic-cowboy/program_with_appcelerator_titanium
Oct 2014 - Nov 2014
Contributions:83 commits, 2 pushes in 29 days
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