Ryo Adachi
SRE at 個人事業主
Saitama Prefecture, Japan
Summary
👤
Senior🎓
Top SchoolRyo Adachi is an SRE leader with 11 years of experience, currently serving as SRE sub-manager at Findy and running independent SRE/infrastructure consulting projects. He specializes in reliability, observability, performance, incident response, IaC on AWS (ECS/Fargate/Terraform), and building large-scale data and monitoring platforms using tools like Datadog, Elasticsearch, Redis, and GitHub Actions. Ryo has driven cloud migrations, cost- and SLO-driven operations, and security hardening across startups and mid-size companies, and he routinely refactors systems to reduce latency and operational debt. Outside of day-to-day engineering he founded TechBull to coach and grow SRE talent, led development of a membership system, appears on SRE-focused YouTube content, and has contributed to OSS security tooling like Vuls. Based in Saitama, Japan, he combines hands-on infrastructure work with team mentoring and community-building, making him as comfortable in on-call rotations as in guiding engineering culture. His portfolio, blog, and wiki reflect a bias toward practical automation and teach-back—turning incident learnings into repeatable improvements.
11 years of coding experience
学士, 総合情報学部, 学士, 総合情報学部 at 東洋大学
Github Skills (50)
administrator10
scanner10
security-hardening10
vulnerability-management10
vulnerability-scanners10
security-scanner10
freebsd10
vulnerability10
cybersecurity10
wordpress10
linux10
security-automation10
security10
openvas10
vulnerability-assessment10
Programming languages (11)
Github contributions (5)
RVIRUS0817/adachin_bbs
Feb 2017 - Feb 2020
Contributions:2 PRs, 25 pushes, 3 branches in 3 years
RVIRUS0817/ansible_blog.adachin.me
Mar 2017 - Jul 2020
Contributions:3 PRs, 206 pushes, 4 branches in 3 years 4 months
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