Ryo Hayashi
Webエンジニア at Freelance
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolRyo Hayashi is a Tokyo-based web engineer and serial technology leader with 13 years of experience building and operating web applications and services. He has held multiple CTO roles and founded a full-service web agency, bringing end-to-end capabilities from product design to deployment and maintenance. His background includes leading teams that integrate online services with physical stores and bespoke business systems, reflecting a strength in practical, operations-linked software. Since 2024 he has been working as a freelance web engineer, applying executive-level technical strategy in hands-on delivery. Colleagues know him for pairing entrepreneurial instincts with long-term technical stewardship across startups and midsize companies. His public GitHub presence signals ongoing engagement with developer tooling and open collaboration.
13 years of coding experience
9 years of employment as a software developer
電子化, 電子化 at 川崎市立川崎総合科学高等学校定時制
Japanese, Chinese
Github Skills (33)
api7
google-tag-manager6
hateoas6
rest6
measurement-protocol6
hypermedia5
guice5
measurement4
aspect-oriented-programming4
aop4
mvc4
php4
rest-api4
wordpress-plugin3
google-analytics3
Programming languages (2)
Github contributions (5)
ryo88c/BEAR.Authority
Jan 2019 - Nov 2020
Contributions:10 releases, 22 commits, 1 PR in 1 year 10 months
ryo88c/BEAR.Resource
Feb 2016 - Aug 2017
Contributions:1 push, 2 branches in 1 year 6 months
as-a-serviceapihypermediarest
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