The short version, for fast readers.
01—Who I am
Principal-level product designer, 14 years. Currently Lead Designer at Atlassian. Before that, Zoom and Microsoft — eight years at Microsoft alone.
I lead with craft: visual design, interaction, design systems, and motion — and the taste to tell when something is actually good, not just shipped. I also build. TypeScript, React, Swift. Building is how I make sure the design intent survives all the way to production. The portfolio you're reading is mine — designed and built in Cursor, end to end.
02—Why this might be a fast yes
Visual craft is where it starts — type, color, hierarchy, the motion that makes it feel alive, the details people feel but can't name. At Atlassian I'm crafting the visual language for new AI-native ways of working, so AI reads as part of the product rather than a layer over it. I shaped the look and feel across Teams Mobile at Microsoft, and authored Prism at Zoom — the visual system every mobile surface inherited. You're looking at more of it: a pixel-faithful Cursor IDE, designed and built end to end.
I think in systems, too. Prism, the design system I led at Zoom, became the shared language for the entire mobile design org: 300 designers, 95% component adoption in six months. Tokens, motion, and native foundations before pixels — systems craft, not a sticker sheet.
Craft that ships, and moves the numbers. At Microsoft I rebuilt Compose on Teams Mobile, a surface 96M people open daily. I sweated the interaction timing, motion, and hierarchy until it felt effortless — and it drove a 22% lift in messaging. Design you can measure.
I treat AI as design material. Not a feature I bolt on — a material I shape with taste and judgment. I built Foundry, a resource for designing in code across every major AI platform, and shipped my own MCP servers and skills, including one that carries context across models. The portfolio you're reading is the proof, and Codexd is another: a native iOS app, concept to TestFlight in 72 hours, zero Figma.
I've been in the room where it mattered. At Microsoft I owned Teams design's position in company-wide Copilot strategy — design's voice for an entire product area in the company's biggest bet. Enterprise governance, cross-org rollouts, design-system politics. None of it surprises me.
03—The three files to read first
If you only open three, open these. In order.
recruiter-canvas.md — AI-native product design at enterprise scale. The clearest picture of how I treat AI as a design material, not a feature.
zoom-design-system.md — Systems and visual craft. Prism, the design system used by Zoom's entire mobile design org: 300 designers, 95% adoption.
adaptive-compose.md — Shipped craft with a measured outcome. The Teams Mobile interaction work behind the 22% lift.
04—The numbers
05—Or skip all this and ask
The agent on the right answers in my voice, grounded in my actual work. Try "why should I interview Sean?" or "is he a fit for [your company]?" It's honest, including about where I'm not the right call.
06—Receipts
I treat AI as design material and build what I design — so here's the live evidence, not a claim. The work is logged in the open: github.com/seanx24x — 700 contributions across 9 repos since March on this portfolio build.
My Cursor profile is public at cursor.com/@seanx24x — AI-coding activity, agent runs, the daily heatmap. Cursor since 2023; VS Code for years before that. The portfolio you're reading is a replica of that IDE; the profile is the real thing.
07—How to reach me
Direct is fastest: . I read everything.
// thanks for reading to the end