Sebastian Hermida by the Golden Gate Bridge

I’m a product engineer with 20+ years of experience working across systems, infrastructure, and product.

I focus on turning ambiguous problems into clear, buildable systems. Most of my impact comes from shaping work before it reaches development: defining scope, making tradeoffs explicit, and reducing uncertainty.

I’ve worked across backend, frontend, and infrastructure, with a strong focus on domains, DNS, and other foundational parts of the web.

I’ve also built visual explainers for systems like DNS, HTTPS, and DNSSEC, used by thousands of people each month, with community translations and interactive elements.

I optimize for clarity and shipping, not complexity.