RUI●

I build web tools, mobile apps, and the cloud infrastructure behind them. Based in Japan, I work across the whole product — from a first idea to something people can use.

I started with Go and Python on the backend, and have spent the past five years working across full-stack development and AWS. I'm now in my fourth year as an AWS Community Builder, and occasionally write about what I learn.

Outside work, I keep building — SaaS, developer tools, AI experiments. New ideas and seeing them work are the fun part. At home, my seven cats make sure I take breaks from the screen.