Software engineer from Taiwan, based in Japan.

I have 4+ years of experience building backend systems, web applications, internal tools, and developer workflows. I like working across Node.js, Go, Java, React, Docker, and AI-assisted product development.

• Backend services, developer tooling, and pragmatic product delivery
• AI agent workflows and prompt infrastructure
• Multilingual products for teams operating across Taiwan and Japan

• Building internal systems and public-facing web services at Tyoho Group
• Developing JapanJob, a job matching platform for Chinese-speaking job seekers in Japan
• Exploring how AI agents can speed up planning, implementation, and documentation work

• Tyoho Group: end-to-end product development across Java, Go, React, React Native, PostgreSQL, Redis, Docker, and GitHub Actions
• HP Inc. / vCosmos: full-stack development in a Scrum team working on cloud-based testing infrastructure
• K-JUMP Health: backend and real-time data processing for a health data platform

Reusable agent rules, templates, and workflow structure for AI-assisted software delivery.

LAN file sharing service built with Go, Nginx, and Docker, designed for simple uploads and downloads with low memory usage.

A Discord bot with music playback, Reddit commands, and Docker-based deployment.

Version-controlled resume and CV repository for Japanese and international job applications.

Node.js TypeScript Go Java Spring Boot React React Native PostgreSQL Redis Docker AWS Azure Linux

• Chinese (Traditional): Native
• English: Conversational
• Japanese: Conversational, JLPT N2

• GitHub: @screenleon
• Email: screen.leon@gmail.com
• Resume: screenleon/resume