Story
My name is José Carlos Martínez and I'm a Product Designer and Design Systems Specialist.
I studied graphic design but was drawn to UI on the web from the moment I had access to the internet. My first intention was to learn 3D modeling, but I fell in love with websites and specialized in this passionate field.
During my career I've designed UI for many products, including SaaS, video games, e-commerce products, mobile apps, etc.
Today, my areas of expertise combine AI tools with design system solutions, governance and technical knowledge to prototype, document and build when it helps. I build scalable visual languages and user-centered experiences that help teams ship consistent, high-quality digital products.
In my free time I enjoy reading, painting miniatures and playing Dungeons & Dragons with friends.
Experience
Products I have worked on
Business models
- B2CConsumer-facing products and apps
- B2BEnterprise platforms and SaaS
Industries
- FinanceBanking, fintech, and regulated products
- E-commerceRetail and online shopping experiences
- Video gamesGame UI for mobile and desktop
- AgenciesMulti-client work across sectors
Product surfaces
- Mobile appsiOS and Android app interfaces
- WebDesktop and mobile web interfaces
- BackofficeInternal tools, dashboards, and admin panels
AI in my day-to-day work
AI-driven design and design systems
I integrate AI into my design workflow as a collaborative tool that accelerates processes and deliveries.
Whether exploring design systems solutions or using AI-assisted tools to ship faster, I focus on clearer information architecture, more consistent UI, and better handoffs between design and development.
This portfolio
Built as a product, not just a showcase
This site is another product in my portfolio. I designed and built it end-to-end.
- Astro
- CSS Design Tokens
- Git & GitHub
- Cursor AI
Case studies are authored in Markdown and rendered through Astro Content Collections. Styling uses a token-based SCSS architecture (primitives → semantics) with light and dark themes—mirroring the same systematic approach I apply to design systems at work.
Let's talk
Open to remote roles and collaborations in product design and design systems.