With 20 years of experience, I've joined companies before the structure existed and left with something that lasts. I'm a designer who codes, speaks the language of business, and is the link between design, technology and AI.
I've tripled MRR at yampa by restructuring a product and its business model from the ground up. Led the redesign that drove 4M+ downloads at Astrolink. Two decades shipping SaaS products that outlast my time there.
Work
Selected projects
Astrolink
From zero mobile to 4M downloads
Research revealed four critical friction points that reshaped everything — from trust barriers to onboarding failure. What followed turned a desktop-only platform into Brazil's category leader in astrology.
4M+ downloads · R$1M/month · #1 in Brazil
yampa
Two years cancelled. Rebuilt in two months.
A complete redesign cancelled a week before launch due to critical technical debt. The forced pivot became an AI-first workflow that rebuilt the entire frontend in under two months.
R$80k → R$370k MRR · frontend rebuilt in <2 months
Kaizen
Prompt-Driven Design System
Architected and documented an entire design system to be used through AI prompts. Every component, token, and pattern was defined so a model could build the UI from instructions alone.
Full design system delivered via structured prompts
Results
Impact in numbers
About
From the city of the sandwich to the city of the orange battle.
I grew up in Bauru, Brazil — famous for a sandwich. I now live in Ivrea, Italy — famous for throwing oranges at each other every Carnival. With my wife and two kids, in the city where Olivetti invented the personal computer.
I've been designing digital products for 20 years. But before that, I wrote code — and that part never really left. I just stopped for a while. With AI, I picked it back up and now I do both at the same time, which honestly feels like cheating in the best possible way.
After 22 years away from competitive swimming, I went back. My kids compete too — weekends now mean early alarms, pool bags, and a lot of screaming from the bleachers.
Contact
Let's connect.
Enquiries
cahe.mendes@gmail.comGitHub
See my work on GitHub ↗