Keisuke Koyanagi
Programmer at Self-Employed
Zushi, Japan
Summary
👤
Senior🎓
Top SchoolKeisuke Koyanagi is a pragmatic programmer with 11 years of experience building native apps, backend services, and SEO-driven product features while running his own consultancy from Zushi, Japan. He blends hands-on development (iOS/Android, Rails, Python, AWS, WordPress) with product planning and marketing automation, and has managed offshore SDK teams and enterprise system modernization. Keisuke is also a cultural change leader who successfully introduced document-oriented, Kanban-driven workflows and improved governance at organizations resistant to open communication. A contributor to the Japanese CakePHP docs, he brings attention to detail in technical writing as well as code. Unusually for an engineer, he leverages a decade of meditation teaching to foster calmer, more productive teams.
11 years of coding experience
9 years of employment as a software developer
Bachelor of Laws - LLB, Law, Bachelor of Laws - LLB, Law at Kanagawa University
Github Skills (6)
j10
cakephp10
japa10
documentation10
restructuredtext9
rs9
Programming languages (6)
Github contributions (5)
cakephp/docs
Aug 2015 - Aug 2015
CakePHP CookBook
Role in this project:
Technical Writer
Technical WriterContributions:10 commits, 32 PRs, 21 comments in 4 days
Contributions summary:Keisuke primarily contributed to the documentation of the CakePHP framework. Their commits involve translating and correcting syntax errors within the documentation files, specifically focusing on the "ja" (Japanese) language version. The user's work includes translating entire pages, fixing typos, and improving the overall clarity and accuracy of the documentation.
phpcookbookcakephp
koyakei/shintaido
Sep 2021 - Mar 2025
Contributions:32 pushes, 1 branch in 3 years 6 months
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