I'm a full-stack software developer based in Vancouver, Canada 🇨🇦

Before becoming a developer, I worked in an environment where people spent a lot of time on manual and administrative tasks. That experience inspired me to build software that makes people's work easier and helps them focus on what really matters.

With experience in SaaS, I care about understanding customer needs, taking ownership beyond implementation, and continuously improving both products and how we build them.

My approach to software development has been influenced by Extreme Programming (XP) and Scrum (an Agile framework), especially close collaboration, fast feedback, and automated testing.

Recently, I've mainly been using Claude Code and Codex to write code while reviewing the AI-generated code myself. It sometimes feels like pair programming.

• Tech: React · TypeScript · Ruby on Rails (API) · PostgreSQL
• Repository: https://github.com/masuyama13/scheduling-polls

A web app for comparing times across multiple cities and time zones, built to make scheduling across time zones easier.

I created CrossTimely based on my own experience working and communicating with people across different time zones.

Languages & Frameworks
Ruby · Ruby on Rails · TypeScript · JavaScript · React · Vue.js · HTML · CSS

Tools & Technologies
MySQL · PostgreSQL · Docker · GitHub Actions · REST APIs · AWS · Claude Code · Codex

• 📍 Based in Vancouver, BC
• 🎓 Recently graduated from a Computer and Information Systems program in Canada
• 💻 5+ years of experience across software development and customer reliability engineering
• 🤝 I value ownership, collaboration, fast feedback, and working out loud
• 🧪 I care about automated testing and continuously improving development practices