Ryo Tomidokoro
Principal Software Engineer at OHAKO inc
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolRyo Tomidokoro is a Principal Software Engineer based in Tokyo with 12 years of experience building backend systems and leading engineering teams. Currently at OHAKO inc, he focuses on cloud-native backend development using AWS, GCP, Docker, MySQL, PHP, and Ruby, bringing practical operational knowledge to architecture and delivery. Previously he managed a 70-engineer organization at istyle, combining hands-on engineering and recruiting with people leadership. His background includes project management and early-career backend work, and an unusual academic foundation in civil and environmental engineering with a master's focused on sewage treatment that reflects a systems-oriented problem-solving mindset. Ryo balances deep technical craft with team-scale impact, especially in production-heavy, service-oriented environments.
12 years of coding experience
6 years of employment as a software developer
Master, Civil Engineering & Environmental Science, Master, Civil Engineering & Environmental Science at Loyola Marymount University
Japanese, English
Github Skills (24)
owl9
php8
famicom8
plantuml7
class-diagram7
nes6
collaboration6
structurizr6
translation6
uml5
mermaid5
diagram4
circleci4
sequence-diagram4
nes-emulator4
Programming languages (7)
Github contributions (5)
hanhan1978/behat-sample1
Jun 2015 - Jul 2022
Contributions:3 pushes, 1 branch in 7 years 1 month
hanhan1978/junks
May 2015 - Jun 2020
junks
Contributions:4 PRs, 48 pushes, 4 branches in 5 years 1 month
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