Ryo Kato
Self Employed at フリーランス
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolRyo Kato is a versatile software engineer based in Tokyo with 13 years of professional experience and 5+ years focused on web app development, DevOps, test automation, and machine learning. He has shipped UI-heavy frontends and robust backends at companies ranging from AWS to startups, and recently moved to freelance work after a senior engineering role at Sardine. Ryo’s strengths include building scalable data pipelines and deployment automation using AWS/GCP tooling, improving test reliability at scale, and optimizing developer workflows (e.g., drastically reducing E2E test times and automating staging deployments). He blends research and production experience—having contributed to image-generation microservices and high-traffic consumer features—and is comfortable across TypeScript, React, Node.js, and cloud infrastructure as code. Colleagues value his practical focus on measurable impact, such as cutting flaky tests and accelerating CI/CD, alongside a solid academic background from Kyoto University and USC.
13 years of coding experience
8 years of employment as a software developer
Master of Science - MS, Computer Science, 3.75, Master of Science - MS, Computer Science, 3.75 at University of Southern CaliforniaMaster's degree, Informatics, 3.38, Master's degree, Informatics, 3.38 at Kyoto University
Japanese, English, Chinese
Github Skills (74)
firebase10
auth10
javascript10
angular10
typescript10
nodejs10
cocoapods10
deno9
web-developer9
ai9
database9
realtime9
postgresql9
web-performance9
docker-selenium9
Programming languages (4)
Github contributions (5)
katryo/denkinovel-parser
May 2020 - Jul 2022
Contributions:19 PRs, 42 pushes, 19 branches in 2 years 1 month
katryo/dotfiles
Jul 2019 - Mar 2026
Contributions:9 pushes in 6 years 9 months
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