Kostiantyn Halynskyi

Kostiantyn turns an agreed idea into a product people can actually use. He owns the step between a signed scope and a working build: what the product does, in what order, what it looks like, and where it is allowed to be simpler than it was drawn.

He designs and builds in the same pass. Interfaces are prototyped in code rather than handed over as pictures, so a decision is tested in the product itself instead of in a review. That is what keeps the distance between a design decision and a shipped screen measured in hours, and what keeps the quality bar the same on the first release and on the fiftieth iteration.