Ryo Katsuma
Manager at Cookpad
Chiyoda, Japan
Summary
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RockstarRyo Katsuma is a seasoned back-end engineer and manager with 17 years’ experience building and scaling web services, currently leading teams at Cookpad in Chiyoda, Japan. He brings deep Ruby and Ruby on Rails expertise combined with hands-on service development and team-building skills, balancing technical delivery with people leadership. As an engineer at The Mosh Inc, he maintains an active practitioner’s mindset while steering product and platform priorities. Colleagues rely on him to turn ambiguous requirements into maintainable server-side architectures and to grow engineers into reliable contributors. He is notable for sustaining long-term impact at consumer-facing companies where iterative improvements and operational stability matter most.
18 years of coding experience
English
Stackoverflow
11reputation
902reached
0answers
1question
Github Skills (50)
socket10
swift10
ios9
nextjs9
delicious9
macos9
run-script8
ruby7
activerecord7
middleman6
homebrew6
deep-learning6
podcast6
tensorflow6
objective-c6
Programming languages (7)
Github contributions (5)
katsuma/itunes-client
Jun 2013 - Nov 2020
itunes-client provides a high level API (like ActiveRecord style) to control your iTunes.
Contributions:1 release, 102 commits, 14 PRs in 7 years 6 months
activerecord
katsuma/ton.katsuma.tv
Aug 2018 - Mar 2025
Here is a delicious tonkatsu shop list.
Contributions:1 review, 15 PRs, 14 pushes in 6 years 7 months
shopdelicious
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