Jessica Pagán Sánchez

Building the foundations.

Design Engineer

Creative Technologist

Most of what makes a product feel coherent lives below the surface — in the token that survives a brand refresh, the component that holds under edge cases, the documentation that answers the question before someone asks it. That's what I build at Microsoft.

Work

SharePoint Design System

Tech Lead — Microsoft

2023–Present

Most design system work doesn't start from scratch. This one started from a component library tangled with business logic, a migration no team wanted to own alone, and the question of how to build something that could absorb the next breaking change — and the one after that. SPDS became the answer: a Fluent-aligned, product-specific system that gave SharePoint's feature teams a shared foundation to build on.

Design Systems Fluent React Storybook
Not from scratch. From here.

Community

Showing up is how community gets built. The conversations, the people, the ideas that only happen when you're in the room.

For design systems, Config is mine. Three years in now. Config 2026 left me with a lot — most of it I wrote about.

If you're building something interesting, putting something together, or just want to talk — find me.

attended

Config 2026

San Francisco, CA

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Let's connect

About

Design systems are the work nobody sees. The component that just works. The token that holds through a brand refresh. The documentation that answers the question before someone files a ticket. For the last four years, that has been the work — building the infrastructure at Microsoft that product teams build on, not the products themselves.

Coming to this through computer science means understanding both sides of the handoff: how designers encode decisions, and what it costs when those decisions don't survive the translation to code. That gap is where the work lives. Making the system legible — to engineers, to designers, and increasingly to AI — is the problem that keeps coming back.

Experience

  • Microsoft

    Senior UX Engineer · Design Systems Tech Lead

    2017 — Present

  • McLaughlin Research Corporation

    Software Engineer

    2019 — 2021

Education

UPR Río Piedras

B.S. Computer Science