I build systems others can operate without me.
Backend/infrastructure engineer by background, now building my own products โ ones that don't collect data they don't need.
Writing & more โ https://tadahara.com
A service that helps people connect after repeatedly encountering each other in everyday life.
Designed to keep precise location and encounter-place data on the user's device.
A personal finance app built around how I actually manage accounts, transactions, currencies, and investments.
Lightweight, mostly client-side web tools for everyday problems.
Live and actively developed โ https://tools.tadahara.com/
I use AI heavily for implementation, while keeping product direction, review, verification, and production responsibility on my side.
I keep decisions and operational knowledge explicit through issues, documentation, and repeatable workflows.
- Implemented consent-based safeguards so user data is not sent to AI features unless explicitly permitted
- Built production infrastructure end-to-end as the sole backend/infrastructure engineer, including keyless service access
- Improved deployment, documentation, and handover so systems were less dependent on individual maintainers