I'm a full-stack engineer based in Tokyo, drawn to hard problems and the kind of systems that need to hold up in the real world. Python is my first love — versatile, expressive, and always there when I need to get something done fast. Over the years I've picked up JavaScript, TypeScript, Go, Elixir, and more, and I tend to reach for whatever tool actually fits the problem.
I've spent years working across startups, taking products from early ideas to production systems. I'm just as comfortable making architectural calls as I am shipping features. Lately I've been building sky-finance — a financial intelligence platform with hybrid RAG retrieval, multi-provider LLM routing, and an LLM-as-judge evaluation layer.
When I'm not coding, I'm probably exploring Japan, deep into an RPG, or watching prestige TV with unreasonably high standards.