Tokyo · 2026
Former Product Manager at Intuit. I live in Tokyo, where I build my own products with AI and write a newsletter.
I studied CS and Business Administration at UC Berkeley, then spent years as a PM at Intuit across QuickBooks, Credit Karma, TurboTax and Mailchimp. In 2025, I took time off to travel and ended up moving to Tokyo.
These days I'm building products for people learning Japanese, helping local businesses with their websites, and looking for my next team.
When a learner submits their writing, show them the corrected version ‸point to each mistake and let them rewrite it themselves.
Learners need to make the fix themselves.
This became Suiko's main rule: users fix their own mistakes. Read the case study →
I write the spec
What the feature should and shouldn't do.
AI drafts
Claude Code and Codex write most of the code.
I review
I write evals to test the result and change anything that doesn't match the spec.
Personal operating system
A setup for running several projects with AI agents. Each agent has a role and a written mission, and reports back on what it did.
推敲
Daily Japanese writing practice. The AI marks mistakes and explains them, and you rewrite the sentences yourself. On the web and iOS.
風土記
An interactive map of Japan's 47 prefectures. Click a prefecture to learn about it, or quiz yourself.
My small studio in Tokyo: websites, shops and automation for local businesses.
A tool for collecting vocabulary from real Japanese content. I stopped working on it because it didn't feel differentiated enough from existing apps.
From the newsletter
2025