I'm Mason Catt, a Senior Visual Designer working in design systems and brand, based in Los Angeles. For 12+ years I've been building and scaling the visual systems behind complex products, across platforms and brands, from Amazon advertising to Microsoft's Windows design system.
Twelve years of building things that matter, at companies that care about craft.
Building the visual systems and assets behind Windows: product-accurate marketing compendiums, production-aligned Figma component libraries, expressive icon and illustration systems, and the tooling that lets the team make and theme them. Partnering closely with engineering so what ships matches what was designed.
Directed visual and UX design across global fintech and payments products. Built Pay Studio, the first component library in Amazon Business Payments, and led design for the Amazon Business card member hub. Kept the visual system consistent across international markets and localized experiences.
Led UX strategy, research, and launch of the new Savings product. Onboarded and established the first centralized Figma library and asset repository at the company. Contributed early vision concepts for Debit and Credit initiatives.
Created visual guidelines, UI assets, and custom illustrations for clients including Netflix, Facebook Libra, and Apple Home. Developed iconography and digital artwork supporting brand campaigns.
Designed and launched advertising experiences across mobile, web, audio, and TV. Created conceptual artwork, diagrams, and marketing-ready visual assets. Won the Gold Clio Award for Theatrical Innovation.
…the stack behind the magic
The best product work isn't about individual screens, it's about building foundations that make every screen better. Invest in systems early.
Confusing design is a form of disrespect. Every hierarchy decision, every label, every interaction should make the user's life easier, not harder.
Perfect is the enemy of good, but "good enough" isn't good enough either. Find the sweet spot, then get it in front of real people.
"Knowing what you don't want is a big step towards getting what you do."something that stuck with me
Work, ideas, collaboration, or just good conversation, I'm around.