Guilherme Souza
Product engineer from Brazil
About me
I'm a Product Engineer with 11+ years of experience building and shipping web products.
I started my career as a full-stack engineer and gradually specialized in frontend engineering, while keeping a strong understanding of backend systems, APIs, databases, infrastructure, and product architecture.
I enjoy working on problems where engineering, product, and user experience intersect - taking something complex and turning it into software that feels simple, fast, and reliable.
What I work with
- Frontend: React, TypeScript, Next.js, Vue, Vite
- Backend: Node.js, NestJS, REST APIs, BFF, Go
- Data: PostgreSQL, MySQL, Prisma, Drizzle
- Architecture: Design Systems, Monorepos, API Design, Distributed Systems
- Developer Experience: Storybook, OpenAPI, CLI tooling, ADRs, MCP
- Testing: Vitest, Jest, Playwright, Cypress
- Infrastructure: AWS, Docker, CI/CD
- Real-time: Webhooks, WebSockets
- AI: LLM integrations, Amazon Bedrock
A few things I've built
- Built and evolved design systems used across multiple products and engineering teams.
- Led large-scale migrations from legacy Vue/JavaScript applications to Vue 3 and TypeScript.
- Built CRM, financial, banking, and enterprise platforms used by thousands of businesses.
- Built developer tooling, API documentation, CLI utilities, observability systems, and automated testing infrastructure.
- Built real-time collaborative applications using WebSockets and webhooks.
- Founded and built products from the ground up.
Currently interested in
Product Engineering · Developer Experience · AI · Web Architecture · Design Systems · Performance · Open Source
You can find videos of me on YouTube
