Cthru Music PlayerPersonal Project
A social-first iOS music player designed and built from the ground up with AI-assisted coding.
julio.io
Julio Cesar Gonzalez Product Designer Web & Mobile San Francisco
Work
Google Data Canvas Assistant
An AI assistant that helps BigQuery users build transparent, editable data analyses on a visual canvas.
Google Cloud Agent Builder
A BigQuery tool that helps data experts add business context, test accuracy, and publish reusable data agents.
Amex Search
An app-wide search and servicing experience for the American Express mobile app.
Amex Offers
A one-tap enrollment experience that made Amex Offers faster to browse and add on mobile.
Amex Dark Mode
A semantic color-token system that enabled accessible dark mode across the American Express mobile app.
About
I am a designer who builds.
I spent a decade as a studio assistant to Robert Longo, director of Johnny Mnemonic, obsessing over the technical precision behind monumental charcoal drawings. I’ve since traded charcoal for code, designing AI products, B2B tools, and consumer mobile experiences used by millions at Google, Amazon, and American Express.
Across those very different products, the through line has been using design to help them grow. I care about making complicated things feel simple, making useful things look as valuable as they are, and creating experiences that people actually want to come back to.
Right now I’m shipping my own iOS music discovery app, building everything from the recommendation system and data pipeline to the interaction model and visual design with an AI-assisted design and coding process. I’m especially interested in using AI to move beyond the design patterns of the last 20 years and build products with richer motion, stronger identities, and experiences that feel genuinely new.