What are you most proud of in your career?

Tiny Thoughts. Not because it's the most technically sophisticated thing I've built, though it might be. Because of what it replaced and what it proved.

There was a $3,000-a-month enterprise platform called Rethink BA that the agency was paying for. Bloated. Overcomplicated. The therapists were overwhelmed by it. Too many features, none of them fast enough for what actually happens in a session with a child. So I built Tiny Thoughts. Rails 8, PostgreSQL, a TypeScript domain kernel for mastery detection. Three program types, five roles, RLS on every clinical table.

Within nine weeks, trial volume went from 10 per week to over 5,000. 537 times growth. Twenty-seven monthly active users. Seventy-three percent MAU. Therapists self-onboarded without a single training document.

But the part I'm proud of isn't the numbers. It's the mastery detection engine. I sat with BCBAs and learned how they decide when a child has mastered a skill. Then I turned that clinical judgment into configurable rules with property-tested edge cases. Not machine learning. Deep domain knowledge encoded into software. And when a mastery event fires, that means a real child just demonstrated consistent ability in something they couldn't do before. 129 of those events have fired so far.

I built software that helps children learn. I didn't set out to work in healthcare. I set out to build something, and healthcare is where the building led me. I followed the work, and the work turned out to matter.