Collage @ Etsy

Collage is Etsy's design system. As a senior engineer on the team, I build and maintain the cross-platform component library, the utility-CSS layer, and the codemods that let hundreds of engineers adopt changes safely across a two-sided marketplace.

The work is equal parts component craft and migration tooling: shipping accessible, themeable primitives, then writing the automated transforms that roll them out consistently across an enormous codebase without breaking production.