Hi, I'm Ryo 👋

Systems Engineer (Full-Stack) based in Japan.

Tech Stack

• Languages: Java / Spring Boot, PHP, JavaScript / TypeScript
• Frontend: HTML / CSS / Tailwind CSS
• Database: PostgreSQL / MySQL
• Tools: Git / GitHub, REST API Design
• AI: Claude Code, ChatGPT

What I Do

• Full-stack web development
• Japanese localization & LQA for global SaaS/AI products
• AI output quality review (Japanese)
• Landing page design & development (Jamstack)

Certifications

• Oracle Bronze
• G検定 (JDLA Deep Learning for GENERAL)
• ITパスポート