I'm David, and once-upon a time I wrote some code. Nowadays I write manager code (your judgments are likely all valid).
I like to read and learn about various topics.
For the last ~10 years, I've been managing engineering teams. I've led small and scrappy teams as well as larger teams (~75 ICs, 8 managers). I led teams that built a lot of Square's public developer platform. I care deeply about enabling people to do their best work.