Ryosuke Sato
ソフトウェアエンジニア at TIER IV
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolRyosuke Sato is a pragmatic software engineer and SRE with 12 years' experience building backend and cloud infrastructure in Tokyo, currently developing authentication and authorization systems for Web.Auto at TIER IV. He has led small cross-functional teams at mixi, designing Elixir-based backends, implementing IaC with CloudFormation, and navigating PCI DSS compliance and audits. Comfortable across Ruby, Go, and Elixir, he applies Domain-Driven Design and SLO-driven engineering to both serverful and serverless microservices. An experienced on-call operator and speaker at industry events, he brings a developer-first SRE perspective and a practical blend of hands-on coding, recruitment, and team leadership. Unexpectedly, he pairs rigorous production focus with a convivial "hop dude" persona—someone who can explain reliability metrics over a beer.
12 years of coding experience
7 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at University of Tsukuba
Github Skills (91)
slack-bot10
python10
bash10
terraform10
command-line-tool10
serverless10
oh-my-zsh10
lambda10
shell10
spice10
cli10
graph10
rails10
macos10
zsh10
Programming languages (11)
Github contributions (5)
ryosan-470/factordb-python
Mar 2017 - Jun 2020
FactorDB client library with Python
Contributions:2 releases, 34 commits, 13 PRs in 3 years 3 months
client-libraryfactordbpythondatabasecli
ryosan-470/exercism
Mar 2019 - Mar 2021
exercism
Contributions:4 PRs, 79 pushes, 7 branches in 2 years
rustexercism
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