Open to remote roles

WellingtonMota

Portfolio — Ed. 2026
Design Engineer
AI Specialist

Design Engineer

AI Specialist

15+

years building digital products

I design digital products and build them in React and TypeScript. What gets approved in the prototype is what ships.

React · Next.js · TypeScript · Design Systems · AI in production

SocialGitHub LinkedIn Behance

See the work Talk to me

ClientsBrands I have done work for.

MindtoolsMitsubishiServiceNowKineoTutoryHyperGestorTakoButterfly IOAction247CareCloudMonumentaBRBCAIXABanco do BrasilKIA MotorsSolomonAutódromo VelocittaAnimalleGrupo SOMAWevrResilience DynamicSolutiSankhyaCogmo TecnologiaYour Digital MediaChris CorsiniNomooBrintelBelo MonteAltevitaGraphiteRXMindtoolsMitsubishiServiceNowKineoTutoryHyperGestorTakoButterfly IOAction247CareCloudMonumentaBRBCAIXABanco do BrasilKIA MotorsSolomonAutódromo VelocittaAnimalleGrupo SOMAWevrResilience DynamicSolutiSankhyaCogmo TecnologiaYour Digital MediaChris CorsiniNomooBrintelBelo MonteAltevitaGraphiteRX

02About me

I design the product and write the front end.

I have 15+ years in product design and 3+ shipping front end in React, Next.js and TypeScript. I do the UX research, the interface and the code that goes to production, integrated with REST and GraphQL APIs.

I hold a degree in Systems Analysis and Development and an MBA in Full Stack Development. I work best on small teams, where one person can own a feature from research to deploy.

Talk to me

15+

years in product design

40%

less handoff time

28%

more feature adoption

4×

faster feature delivery

40%, 28% and 4× come from Jira data, comparing each project before and after I joined.

03What I do

Design, front end and AI.

The same person on the design and on the code.

Product Design & UX

→UX audits of live products
→User research & usability testing
→Wireframes, flows & IA
→High-fidelity prototypes

Figma · Research

Design Systems

→Tokens & foundations
→Component libraries
→Living documentation

Used by 3 teams

Front-end Engineering

→React · Next.js · TypeScript
→REST / GraphQL integration
→Performance & accessibility

Production

AI Engineering

→Spec-driven development
→Agent orchestration (MCP)
→Evals & CI quality gates
→RAG in the product UI

Specs · Agents · LLM

Freelance projects: see services

04Selected work

Six products I designed.

Five of them I also built.

ProductPrototype3DSports

Golfleik

A golf-club proposal turned into a clickable members’ app and club ERP, with a 3D course.

WebSEOAstroEdTech

Tutory: website

WordPress to a 14-page Astro site, with 301 redirects and Lighthouse 100.

BrandingIdentity3DEdTech

Tutory: visual identity

Rebrand with symbol, palette, voice, a 37-slide deck and six 3D trophies.

ProductUIPrototypeFintech

Finby

A group-savings app taken from Figma to a 12-screen prototype you can use on a phone.

ProductUXPrototypeWellbeing

Resilience Dynamic

A wellbeing app that launched, plus a 15-screen prototype built from my Figma file.

ProductUXHealthcareHealth-tech · Case Study

CareCloud

A US clinical suite moving from Adobe Flex to React. Four months on-site in Miami on a five-person UX team, with flows tested with doctors.

ProductDesign EngReactFinance · Case Study

The real app, live on the page

GPB

A UX round on a business group’s finance system, done directly in the React code. The real app runs on the page, with fictional data.

ProductAppUXHealth · Case Study

Redesign to beta in 7 days

CuidaMe

A care app that had been stuck for two years. In one week: workshop, redesign and the whole front end ready for beta, approved on the first try.

Product3DDataEdTech · Case Study

Lead Airport

The lead table on a sales-room TV became a live 3D airport in three.js, where each lead is a plane that lands. Built in one week.

More case studies

Earlier work for Kia, Wevr, ArtCaffé and Odens is on Behance →

05Testimonials

From people I worked with.

Messages from clients and teammates in Brazil, the UK and the US.

App Design

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

App Design

…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

Website

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

UI/UX

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

Dashboard

Man, this new version is stunning. Congrats, you nailed it!

Fernando Cardoso

CEO HyperGestor · Head of Innovation, Mitsubishi Motors

06FAQ

Questions?

“Have a different question? Email me and I will answer it.”

Response time

Within 24h

Do you really do both design and development?

Yes. On the design side: UX research, flows, high-fidelity interfaces and design systems in Figma. On the code side: React, Next.js, TypeScript and Tailwind, integrated with REST and GraphQL APIs. That is 15+ years in design and 3+ shipping front end.

Do you work remotely?

Yes. I am based in Brasília, Brazil (GMT-3) and work remotely with teams abroad. My English is fluent, and I have worked with clients in the UK and the US, including four months on-site in Miami.

How do you use AI in your work?

I write the spec first and build from it with agents connected to the project’s tools through MCP. Prompts are versioned and tested like code, and evals run in CI before a deploy. I review and answer for everything that goes to production. When the product itself needs AI, such as search or an assistant, I design and build it into the interface, with RAG where it needs the product’s own data.

Do you take freelance projects?

Yes, by project, for companies and founders in Brazil and abroad: a UX audit, a prototype to validate an idea, or a product built from scratch. The services page explains how it works. My priority right now is a remote role on a product team.

07Writing & Code