Case studies & experiments
Selected product work across fintech, mobility, SaaS, design systems, and health, plus interaction experiments built in code.

Making UI creation scalable through a design system
Led Rakbank's design system from scratch: token layer, 200+ components, adopted across 15+ product teams.

Merchant portal: from fragmented tools to unified workflow
Led the Klarna merchant portal redesign for Shoppable Video.
ExperimentBuilding petermarc.com: design, code, and AI in one repo
A full rebuild of my portfolio and services site: not a template swap, but a typed content layer, token-driven CSS, scroll-linked sections, and a component library shaped around how I actually pitch founder work, built iteratively in Cursor with the same stack I recommend to clients..

One token layer, seven platforms
Led the Sector Alarm design system: one token layer serving 7 platforms simultaneously (iOS, Android, tablet, Apple Watch, Wear OS, web, desktop).
Have a product flow that feels harder to explain than it should?
Send me your product, MVP, deck, or prototype. I'll tell you where I'd start.