David MT — Senior SRE Engineer

Hi, I'm David Mata — Senior SRE based in Costa Rica.

I've spent the last 10+ years working on the kind of infrastructure problems that don't have clean answers: on-call at 2am, cascading failures, migrations that go sideways, and automation that creates more toil than it removes.

This blog is where I write about what I actually learn — not polished tutorials, but honest accounts of how things break, why they break, and how to build systems that fail less often and recover faster.

By day I work on Kubernetes in production, observability and incident response. This blog started with what I learned building this site on the edge — Cloudflare Workers, no framework, no origin server — and is moving toward the production SRE side: incidents, on-call, and how systems actually fail.

If you're looking for step-by-step beginner guides, this probably isn't the place. If you're trying to understand why something works the way it does — stick around.