Product Engineer — Design + Fullstack
AI Specialist
15+
years building digital products
Product Engineer who owns both sides: I design and ship the complete digital product — from prototype to fullstack React/TypeScript application in production, no handoff, from discovery to metrics. And I use AI beyond autocomplete: spec-driven development, orchestrated agents, version-controlled prompts, and evals ensuring quality before deploy — MVPs shipped in days, not months.
React · Next.js · TypeScript · Design Systems · AI in production
I am a Product Engineer at the intersection of design systems, component architecture, and user-centered product thinking. From UX research and high-fidelity prototypes to fullstack applications in production — React/TypeScript integrated with REST and GraphQL APIs.
15+ years in product design and 3+ years shipping front-end on modern stacks (React, Next.js, Node.js). Degree in Systems Analysis and Development, MBA in Fullstack Development. I thrive on lean teams where one person can own the entire experience — cutting delivery time and handoff noise.
15+
years in product design
40%
less handoff time
28%
increase in feature adoption
2×
faster feature delivery
One professional to design and build your digital experience, no handoff.
I generate layout and copy variations with LLMs, synthesize research data with automated analysis, and accelerate A/B tests with evals.
I automate token generation, component documentation, and accessibility checklists with code agents.
Agent-powered code review, assisted refactoring, test generation, and automated visual regression detection.
Executable specs become code: multi-agent pipelines, version-controlled prompts, and LLM-as-judge evals in CI.
Full project scaffolding with agents, complete flow prototyping in hours, and real-time iteration.
Projects for major companies and institutions — from Brazil to the UK and US.
Landing page for the Kia Telluride LX — layout, UI, and vehicle configuration experience.
Identity and digital presence for the racetrack — visual direction and site experience.
Interface and experience for Wevr’s VR production platform (WVS).
Campaign pieces for the 10th anniversary of The Blu VR series by Wevr.
Visual direction and digital assets for the ArtCaffé café chain in Kenya.
Brand identity and packaging design praised by the founders.
From the first brief to delivery — with feedback and metrics at every stage.
I understand the business, audience, and goals. User research, benchmarking, and defining the product direction.
Interview synthesis and competitive analysis with LLMs
Information architecture, design system, and high-fidelity screens. Rapid iteration with usability testing.
AI-generated layout and copy variations in minutes
I turn design into responsive, performant React/TypeScript code, integrated with APIs — no handoff.
Code agents for scaffolding, testing, and code review
Testing, final adjustments, and monitoring with analytics and A/B testing to validate product impact.
Automated evals and continuous monitoring with agents
Real feedback from founders, CEOs, and product heads from Brazil, the UK, and US.
Really cool! The copy turned out great, by the way. You have a magic touch… keep going!
J. C. Nery
Director of Innovation & Technology · Mitsubishi
…here we are now with you doing visionary prototyping and all kind of other really great stuff. I’ve really enjoyed working with you and the whole team. Keep up the good work!
Michaela Heigl, PhD
Director · Mindtools
Man, this new version is stunning. Congrats — you nailed it!
Fernando Cardoso
CEO HyperGestor · Head of Innovation, Mitsubishi Motors
Well done! For me they capture the meaning of the brand in a playful, non-threatening way that just kind of pulls you in and makes you want to learn. It’s a big improvement on our first efforts.
Jonny
CEO · Odens, UK
You did an amazing job on the website, the ideas, and the refinements. You truly are one of a kind, and I’m really happy you’re on the team. Congrats!
Cadu
Head of Marketing · Tutory
You've really made a difference! It's fantastic to see the work you guys are doing start to make an impact on actual revenue.
Kirsten
Head of Product · Mindtools
Nice one, bro! Wow, I got goosebumps.
Marlom Andrade
CEO & Founder · Tutory
I really love these designs — very beautiful and I think the branding is on point! Everything feels cohesive to gently nudge the user on their learning journey.
Nial
QA Head · Mindtools
The labels look spot on! I am really pleased with the whole package and I think that they will sell like crazy. Thanks to everyone — I really appreciate it.
Simon
Founder · Simple Snuff
Oh my God, oh my God, oh my God. This is insane, Well!
Letícia Sousa
Marketing · Tutory
“Didn’t find what you were looking for? Reach out — I’ll tell you everything about how I can help with your product.”
Within 24h
Yes. I own both sides: UX research and high-fidelity design, plus React/TypeScript implementation in production. This eliminates the handoff and drastically reduces delivery time.
Yes. Based in Brasília, Brazil, and open to fully remote opportunities, including international — fluent English, with experience serving clients in the UK and US.
Discovery → Design → Development → Delivery. With feedback checkpoints at each stage and metrics (analytics, A/B testing) to validate product impact.
React, Next.js, TypeScript, Node.js, Tailwind, and REST/GraphQL integration on the dev side; Figma, design systems, and usability research on the design side.
Far beyond code autocomplete. I work spec-driven: the specification becomes the source of truth, and orchestrated agents in multi-step flows (with MCP) turn it into code. I version and test prompts as code, optimize cost/tokens (caching and model routing), and use LLM-as-judge evals to ensure quality before deploy — integrating AI features directly into the product UI.
No. "Vibe coding" means requesting code and hoping it works. I do Design Engineering: I design the experience and implement it with production discipline — version-controlled and tested prompts, evals with CI gates before deploy, cost and token control, design system as the single source of truth, accessibility and performance. AI is a tool under engineering, not a crutch: I understand, review, and take responsibility for what goes to production.
Articles on Medium, code on GitHub — thinking and shipping side by side.
My transition after 15+ years in UX/UI design to front-end — and why closing the gap between design and code became my focus.
A practical hands-off documentation method: user stories, acceptance criteria, and Given-When-Then scenarios to eliminate handoff noise with dev.
Open to remote opportunities and projects. I respond within 24h.
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