I find the problem behind the request.From insight to outcome, I shape the experience end to end.Complexity is the part I enjoy.
Selected work
01 / 06
Rebuilding a design org around AI
9 of 9 designers adopted the model in 2025, including its strongest initial skeptics.
FEATURE DELIVERY, SAME HUMAN GATES
2-4 WEEKS PER FEATURE
2× faster
Design Manager · meutudo2025 to presentRead →: Rebuilding a design org around AIThe bridge to Pix
There was no screen for typing a Pix key. A designer on my team proposed one. It was the right destination, and it cost more to build right then, so we shipped bank details first.
FORMALIZATION, ENTRY TO SIGNATURE, CURRENT
P90 UNDER 9 MIN
1 min median
Design Manager · credit fintech2025Read →: The bridge to PixThe health data we decided not to store
The client asked to store patients' answers. I said no, and built the comparison they wanted without a single answer leaving the device.
HEALTH DATA ON THE SERVER
AS REQUESTED
0 stored
Designed and built end to end2026Read →: The health data we decided not to storeThe design system machines can read
Engineers, PMs and executives prototyping within the standard designers govern.
WHO PROTOTYPES ON-PATTERN
DESIGNERS ONLY
+11 people
Author of the platform2025 to presentRead →: The design system machines can readA one-person studio, with real money on the line
Execution can be delegated. Judgment cannot. So I built a studio where agents execute and criticize, and money only moves on a human call.
RETURN ON AD SPEND, AUGUST 2026
BREAKEVEN 2.5
3.2 ROAS
Built and operated by me2026Read →: A one-person studio, with real money on the lineAI first, quality first
Four applications built with AI as a pair from day one. Not to go faster, though it did: to hold the bar on interface, patterns and code that is safe to maintain.
CONCEPT TO STORE-READY APP, TWO PEOPLE
THROWAWAY PROTOTYPE
3 months
Co-founder · HUAH2026Read →: AI first, quality first
Open source
MARKETPLACE
hefesto
A marketplace of six Claude Code plugins I build and operate, covering design methodology, product discovery, content and performance marketing. Versioned like software: CI, semantic versioning, deterministic validators and adversarial review agents. My working method, readable and installable by anyone.
github.com/sallzzbr/hefesto-publico
TOOLKIT
figma-plugin-forge
An open-source toolkit that teaches AI assistants to build production-grade Figma plugins, with verified templates and a review workflow.
github.com/sallzzbr/figma-plugin-forge
Teaching and community
COURSE
UX e tecnologia
A free 46-chapter course on the technology designers need in the AI era: agents, spec-driven work, MCP, design systems that scale. In Portuguese, no login, no upsell.
interfacedousuario.com.br
BOOK
Carreira Técnica
Co-author. How to structure technical career tracks in project-based organizations, treating developers, QAs and designers as protagonists rather than support. The result of three years of collaborative work, published in 2025.
Amazon
ESSAY
Continue a nadar: Design na era da IA
An essay on what stays human when execution stops being the bottleneck.
UX Collective Brasil
LIVE
Also
PLUGINS
Four Figma plugins in production
Design system conformity audit, AI-assisted UX review, library sync, and design-to-requirements generation. The last one evolved from a tool registered at Brazil's IP office in 2024, built in 2023, when generative AI was only starting to reach interface work.
About
I design with the systems I build.
I am restless and calm at once. Restless because I go after new knowledge; calm because I like to listen, I am often the quiet one in the room, and I decide on facts and data. I studied and practised law, and left because what always moved me was making things. I went into design to learn the process, then into programming for the same reason. A generalist by conviction.
Read more →In their words
Translated from Portuguese · Originals on LinkedIn ↗I met him as a mid-level designer and, within three years, he became the Design Manager who took over part of my position when I left the company. It was not luck or timing. It was results.
Daniel Furtado · Head of Design & Product
WAS MY DIRECT MANAGER
As a people manager, he is pragmatic, raises the bar and knows how to make hard decisions. [...] He integrates AI, design skill and focus on results.
Dimitri Augusto · Software Architect
BUILT THE VENTURUS CAREER TRACKS WITH ME
One of the most remarkable was the integration between the QA and Design areas, in cross-functional work that brought more agility to people management and helped standardize how the operation worked. [...] Bringing together strategic vision, the ability to execute and collaboration to turn complex challenges into high-impact initiatives is a rare thing.
Victor Scarpa · CTO
LED ENGINEERING NEXT TO MY DESIGN CHAPTER