I'm Sebastian. CTO, builder, and a person who's had the privilege of working with some remarkable companies along the way. A fair bit of luck might have been involved too.

Agentic workflows have changed how I work — I can move faster than ever before, without the overhead that usually comes with it. You get 30 years of product decisions, good and catastrophically bad, without paying for the lessons twice.

I take one client at a time. Right now there's a seat open.

Most of the time "more technology" is not the answer. Technology leads to complexity, complexity leads to risk, and risk is the thing that quietly kills products and budgets.

It's a strange thing to say when that's what I sell. But it's exactly why clients come back. I focus on delivering value, not stacking billable hours.

No two products are created equally. Finding what makes yours distinct and amplifying it relentlessly, that's the work. Everything else is noise.

The most expensive line of code is the one you didn't need to write. The approach "we'll solve it once we get there" is the single biggest culprit in blown budgets and sunk cost. I know, I've been guilty of it.

Prototypes exist to kill assumptions before they kill your product. They surface the unknown, remove bias, and give you real data on what works, what needs work, and what needs to be trashed entirely.

Crystal balls don't exist. A prototype is the next best thing.