About

Senior full stack developer in Lima, Peru. I build SaaS platforms in React, Node.js and PostgreSQL, from the domain model to production.

Section 1 of 3: Method

  1. Boundaries are explicit.

    Dependency runs one way — interface to application, application to domain. The domain knows nothing of the framework, the database or the transport. A boundary is crossed by a written decision.

  2. The smallest change that works.

    No abstraction for a future that has not arrived; whatever stops being used goes in the same change.

  3. Verify before claiming.

    Nothing is done because it compiles. It is done when the gates pass and it has been seen in the production build.

  4. Decisions are written down.

    What cannot be read off the code goes into a dated record with at least two options compared.

Section 2 of 3: Stack

  • Frontend

    • React
    • Next.js
    • TypeScript
    • TanStack Query
    • React Hook Form
    • Tailwind CSS
    • shadcn/ui
    • Vite
    • Astro
  • Backend

    • Node.js
    • Fastify
    • Zod
    • OpenAPI
    • REST
    • Better Auth
    • JWT
  • Data

    • PostgreSQL
    • Prisma
    • Redis
    • SQL
  • AI

    • OpenAI API
    • LLM assistants
    • WhatsApp
    • Claude Code
  • Architecture

    • Hexagonal architecture
    • Domain-Driven Design
    • Domain events
    • Contract-first APIs
    • Modular monolith
    • Nx monorepo
    • ADRs
  • Cloud and quality

    • Docker
    • GitHub Actions
    • Fly.io
    • Cloudflare
    • Vitest
    • Playwright
    • Testing Library
    • ESLint
    • Git

Section 3 of 3: Languages

Spanish
Native
English
Elementary