About

David Lee

David Lee birding by Lake Ontario with the Toronto skyline in the distance

I’m a security-first, founder-minded software engineer focused on backend systems, infrastructure, and the parts of software that usually matter most when things go wrong.

Most of my work lives around reliability, performance, architecture, and services that need to scale, code that needs to stay readable, and systems that should keep working under pressure. I work often with Rust and Go, with a bias toward practical engineering over fashionable complexity.

This site is where I write about system design, distributed systems, testing, domain modeling, and the engineering habits that still matter in the AI era. Tools change quickly. Good judgment, sound architecture, and clear thinking do not.

You’ll find upgraded versions of ideas I’ve explored before, rewritten with more depth, diagrams, code, production tradeoffs, and sharper conclusions. Over time, this will also expand into small labs, experiments, and technical explorations.

I also built CrimeWatches AI, a project created to help people stay informed about safety in the places they live. In a chaotic world, awareness matters. The goal was simple: give neighbors and communities clearer access to public crime data so they can make smarter decisions, protect their families, and look out for one another.

Away from screens, I spend time hiking, birding, and occasionally optimizing my way through a game far longer than necessary.

For business opportunities, product collaborations, or consulting work, contact me at [email protected].