Hi, I'm Jon.

I'm a senior/staff product engineer, educator, and author of two Node.js books. I build AI-powered products and the platforms behind them, from the first architecture to staged rollouts that reach millions of users, across web, mobile, VR and messaging.

I've spent most of my career as a tech lead: setting technical direction, running work across teams and with design, product and legal, and mentoring the engineers who ship it. More and more of that work means directing AI coding agents: setting the scope, the standards and the checks that let many parallel workstreams land in days and stay correct.

I care about making complex ideas easier to understand, whether that happens through code, teaching, or writing. I also consult on engineering, product, and custom application development. See my portfolio for the full picture.

Elsewhere: podcast (JavaScript), Twitch: Node & web apps, Twitch: APIs.