Philip Martin

Originally hired into Square’s SDX (Software–Device Experience) role, I quickly expanded into shaping the company’s product foundations. I began by unifying core experiences across hardware and POS apps, building trust across design, engineering, and product leadership. With that alignment, I drove initiatives like Pay with Cash App, unified point of sale, and AI onboarding — each redefining how sellers start and scale on Square.

I joined at a moment of rapid growth, when the Instacart experience was fragmented and inconsistent. I built Instacart’s first company-wide design system, and established patterns that could flex across web, mobile, and in-store tools. That foundation unlocked growth in buyer discovery and engagement, elevated shopper messaging and logistics, and set the stage for innovations like Instacart’s smart cart.

As a founding designer, I entered a space where digital stethoscopes didn’t exist. I invented and designed the hardware, software, and AI analytics platform that defined the category. Those foundations helped secure FDA clearance, raise $100M in funding, and win recognition from TIME and Fast Company, while giving clinicians a trusted new tool in daily care.

I work with early teams when their ideas are fragile and undefined. By designing hardware concepts, brand systems, and product flows, I provide the structure and taste that turns vision into something investors, partners, and customers can trust.