I’m Davi Afonso, a full stack developer.

I build complete web systems with .NET and React, from the database to the screen. I use AI to deliver more, and I keep studying code and architecture to make better decisions.

AI amplifies what I know.That’s why I keep studying.

Before any agent writes code, I define the product, the architecture and the specification. Then only what passes the tests and respects those decisions counts as done. I’m taking a postgraduate course in Software Architecture with AI and taught this method at Rumo Soluções in internal training sessions.

  1. Product
  2. Architecture
  3. Specification
  4. Agents
  5. Validation

Featured projects

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In productionFor CRC Equipamentos2026

Work Order System

Manages the maintenance of industrial equipment, from arrival at the workshop to the report delivered to the customer.

Brings together in one system what used to live in paper, Trello and spreadsheets, with a full history and an automatic PDF report.

.NET 10 · React 19 · TypeScript · PostgreSQL · Docker · Azure DevOps · Spec Kit · Claude Code

In productionFor Datacar2026

FIPE Matching

Finds the FIPE code (Brazil’s vehicle price table) for each car subscription offer, even when the description is incomplete or worded differently.

New algorithm in production since October 2026, guided by one simple rule: a wrong price is worse than a missing price.

.NET · C# · MongoDB · OpenAI · Docker · Azure DevOps · Spec Kit · Claude Code

In productionIndependent project2026

PIBLS Website

Website and admin panel for Primeira Igreja Batista em Lagoa Santa, which replaced the WordPress site without raising hosting costs.

More than 1,600 automated tests in a system planned to last over 5 years with a single person running it.

Laravel 13 · PHP 8.4 · React 19 · TypeScript · MySQL · Playwright · Spec Kit · Claude Code

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Davi Afonso | Full Stack Developer, .NET and React | DaviDev