The toolkit

The technical stack behind the work.

Languages, frameworks, and platforms Diogo Esteves builds with.

The daily toolkit — fluent, in production, at scale. Not a logo wall: everything here has shipped for real users.

Core

  • TypeScript
  • React
  • Next.js
  • Node.js
  • Nest.js

Data & APIs

  • GraphQL
  • REST / BFF
  • Typed contracts end-to-end

AI-native

  • OpenAI APIs
  • RAG pipelines & vector search
  • Agentic workflow UX
  • Eval tooling

Platform & systems

  • Design-system platforms
  • Monorepos & micro frontends
  • TailwindCSS
  • R3F / WebGL

Cloud & quality

  • AWS · Vercel · GCP
  • CI/CD & trunk-based delivery
  • Playwright
  • Observability

Earlier lives

  • Angular
  • Redux / RxJS
  • .NET Core