+ 200%
Daily appointments, from 15 to 45
4 features
Shipped in under a year
Mobile‑friendly
Patients could join visits from their phones for the first time
3 new features
Chat, earnings and shift details, none existed before
Calendar
The schedule view workers asked for most
Full redesign
Every screen, from schedule to time cards
30%
faster engineering on new features
30+
components designed and coded
21%
increase in Mosaic Hub's adoption
Clipboard Health
Oct 2024 - Present
Lead Product Designer
Product design and direction for new ventures: Maple, Arca, Logcare and Taryn
Lead design across 4 new products with a team of up to 15, from the shared design system to AI copilots like SmartOps.
Mosaic
Apr 2022 - Jul 2024
Senior Product Designer
Resource management SaaS
Created the Tile design system, cutting engineering time by 30%, and co-led the Mosaic Hub redesign that raised adoption by 21%.
ioasys
Dec 2020 - Mar 2022
Lead Product Designer
Allocated to Saúde iD, Grupo Fleury's digital health platform
Led Consultório ID at Grupo Fleury's Saúde iD, tripling daily appointments, and its design system team.
“I can say unequivocally that Gui has a mastery of how to create modern, eye catching web interfaces, and also that Gui is both creative and gritty enough to solve any problem that get in his way, particularly when it came to writing code himself.”
“Gui (Guilherme) is one of the most incredible UI/visual designers I have worked with in my career thus far. With this understanding of how design meets function, Gui can be your go to person when it comes to designing unique, beautiful and functional web/mobile applications.”
“As a Jr. Designer, I looked up to Gui and his abilities all the time! He has a gift of elevating platforms and their visual quality through his designs. He has an high attention to detail as a designer, which shows in his designs and his documentation.”

Hi, I'm Gui
I love to create products that adapt to people, not the other way around. Getting to know users so well that the product almost feels like it's reading your mind. Connecting business needs and unpredictable human behavior is the most fun challenge for me!
A beautiful, well-crafted product is strategy, and usability is non-negotiable. Why do we have to choose between one or the other? And of course, a pinch of delight in every interaction is what turns a product into an experience.
That's what I believe. And now, with the power of AI, I don't just design products that make people say WOW. I build them.
10+
Years
Designing digital products, since 2011
50+
Projects
Across 7 industries, from healthcare to events
1.3k
Commits
Shipped with AI agents, as a designer
15
People
Designers and engineers in the team I lead