Engineer, builder, student of the details.

I'm Young, a Staff iOS engineer based in Palo Alto. My work has moved through consumer video, fintech, and aviation, but the thread is consistent: make a difficult system understandable and make the product feel dependable.

I care about architecture because it changes how a team works. I care about polish because it changes how a user trusts the product. The best mobile work needs both.

Outside of my day job I design and build Usages, an independent iPhone app that puts AI coding quotas, reset windows, tokens, and cost in one private dashboard. It is where I get to own every decision, from the pixel grid to the App Store release.

I also write to make the lessons reusable, especially the mistakes, tradeoffs, and edge cases that disappear from a tidy final diff.