Vitor Lopes
PTEN

Vitor Lopes · AI & UX Product Designer

I design and build AI products that make sense for real people.

Product Designer at the intersection of AI Experience and UX — from strategy to working prototype, with code.

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Selected work

Projects

Cases with critical decisions, real trade-offs, and honest outcomes.

Surgr — AI ProductCase study coming soonFeatured
AI Product

Surgr

An AI fitness app that personalizes workouts in real time — and challenges every assumption about how people use health data.

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VivazGPT — Conversational UX
Conversational UX

VivazGPT

A conversational platform that let CX teams ship AI assistants without writing a single line of code.

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DesignSpark AI — AI Product
AI Product

DesignSpark AI

An agent that keeps design tokens in sync across Figma, web, and mobile — with an automatically generated changelog.

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n8n Creator — Automation
Automation

n8n Creator

A guided onboarding that turned complex n8n automations into visual flows for non-technical users.

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Ecossistema Shepherd — Design System
Design System

Ecossistema Shepherd

A complete design system (PawPrint) + a pet-services super app, built from scratch with AA accessibility.

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About

The person behind the work

I got into design because I wanted products to make sense for people. I became obsessed with AI when I realized it can amplify or destroy that clarity — and someone needs to be on the right side of that equation.

Today I work at Vivo on Design System & Ops, and in parallel I build my own products at the intersection of AI and UX — when the interaction is too complex for a mockup, I prototype in code.

Retrato de Vitor Lopes

Location

São Paulo, Brazil

Availability

Open to AI product roles — full-time, contract, or advisory.

Core stack

Figma · React · Tailwind · Next.js · Gemini API

Credentials

Vivo (Telefônica Brasil)

Design System & Ops — I sustain and evolve the visual foundation that keeps products and services consistent at scale.

  • IBM AI Engineering Professional Certificate · IBM
  • Curso Avançado de Design Systems · Escala
  • Google UX Design Certificate · Google
  • Global AI Bootcamp 2024 · Global AI Community
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I also do academic research.

Scientific research (PIBIC) on engagement in games

How I think

Three principles

I design for the model’s failure, not just its success

The happy path is the easy part. The value is in designing what happens when the AI is wrong, unsure, or silent.

Documentation is part of the design, not a byproduct

A system only scales when the next team understands the rules without asking me. To document is to design.

I prototype in code when Figma can’t hold the complexity

State, real data, and AI responses don’t fit a static mockup. When the interaction is the product, I build it.

Capabilities

What I bring

Design Systems

  • Figma
  • Tokens
  • Acessibilidade AA
  • Documentação viva

AI Experience

  • Conversational UX
  • Prompt design
  • Human-AI interaction
  • Failure modes

Product engineering

  • React
  • TypeScript
  • Tailwind
  • Next.js
  • Cloud Run

Product thinking

  • Estratégia
  • Design Ops
  • Pesquisa
  • Cross-functional

Everyday tools

  • Figma
  • VS Code
  • Gemini
  • n8n
  • GCP
  • GitHub

Interactive

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Contact

Let’s talk

Open to AI product roles, advisory work, and design projects.