Hi, my name is
Cloud Infrastructure Engineer with 12 years of experience in cloud architecture, platform engineering, and infrastructure automation. Bilingual in English and Japanese (JLPT N2). Built and managed all AWS cloud infrastructure independently at GMO GlobalSign Japan for 3+ years — 10 production services end-to-end, covering architecture, cost optimization, disaster recovery, security, and production operations.
Beyond infrastructure, I build internal platforms and developer tooling that enable engineering teams to ship faster — self-service environments, automated cost controls, and deployment orchestration. Now growing the infrastructure team and establishing scalable practices.
Built and managed all cloud infrastructure independently for 3+ years — 10 services (Ruby/Go/Java, PostgreSQL) across staging, pre-production, and production. Now growing the team.
Led test automation and CI/CD pipeline engineering, progressively building infrastructure automation capabilities.
Automated testing for large-scale e-commerce web services, with exposure to containerized and cloud-native monitoring environments.
Systems-level performance engineering — profiling, tuning, and optimizing infrastructure, databases, and application servers.
CKA
CKAD
Terraform Associate
Docker Certified
DevOps Basics
Ansible
BCP-DR
Bitbucket Pipelines
AWS SAA-C03
JLPT N2
JLPT N3
JLPT N4
Claude Code in Action