Tatsuya Katsuhara
Head Of Identity Unit at Musubia G.K.
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolTatsuya Katsuhara is a digital identity and cybersecurity leader with 16 years of experience spanning government, enterprise, and consulting roles across Japan and global cloud platforms. Currently Head of Identity Unit at the Digital Agency, he combines deep expertise in digital identity, cloud security (AWS), and automotive/IoT/OT security with a track record of running identity programs serving 100M+ consumers and leading incident response for payment and identity fraud. He has held senior roles at AWS and NRI/NRI Secure, founded OpenID Foundation Japan, and runs a digital identity advisory firm, blending technical rigor with business development and pre-sales acumen. Unusually for a cybersecurity executive, he also operates a highly awarded family teppanyaki restaurant, reflecting a hands-on operational mindset and customer-focus beyond tech.
16 years of coding experience
10 years of employment as a software developer
Master, Computer Science, Master, Computer Science at Tokyo University of Science
Github Skills (17)
pdf9
hardware5
nrf528405
fido-u2f5
nist5
translation5
usb4
firmware4
security4
nlp4
authentication4
embedded4
python3
cryptography3
rust3
Programming languages (3)
Github contributions (5)
kthrtty/aws-sso-saml-app-dev
Sep 2021 - Mar 2025
Contributions:15 PRs, 20 pushes, 17 branches in 3 years 7 months
openid-foundation-japan/800-63-3
Jul 2016 - Aug 2019
NOTE: これは SP 800-63-3 Draft 版の翻訳です。Final 版の翻訳は下記のサイトより PDF 版をご覧ください。
Contributions:74 commits, 5 pushes in 3 years 2 months
pdf
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.