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Marcus Rodrigues

Full-stack developer moving into AI engineering

Rio de Janeiro, Brazil · contato@marcusrdrigues.com · linkedin.com/in/marcusrdrigues · github.com/marcusrdrigues

I build generative AI applications (RAG, agents and LLM integration) connected to real systems in Java, .NET and Angular. With a law degree behind me, I treat AI as real software: well-designed APIs, reliable data and answers you can audit.

Experience

Full-stack developer · Vibetex2026 – present

  • Responsible for the AI layer of the products.
  • CEDAE: automatic classification, summaries, inconsistency detection and a natural-language chat over 10,000+ field inspections in production. Closed with a technical capability certificate.
  • Leading the build of a support channel with LLMs, RAG and semantic search, on top of Java and .NET APIs and Angular interfaces.

Administrative officer · Rio de Janeiro Bar Association (OAB/RJ)2023 – 2026

  • Taught lawyers how to use the courts' electronic filing systems.

Projects

  • AI for field inspections (CEDAE)AI layer on a production platform with over 10,000 inspections: automatic classification, summaries, inconsistency detection and a natural-language chat. Closed with a technical capability certificate.
  • AI product for the legal marketRAG-based AI engine for law firms: case-law analysis, identification of arguments and risks, and drafting support. Multi-tenant, privacy by design. My own product, in progress.
  • Coti × Criare Hackathon 20251st place in 24 hours with a quoting and negotiation platform for companies and suppliers. After the event it gained teams, live negotiation over WebSocket, isolation between organizations tested on every route and a public demo.
  • This siteA portfolio built with specs before code. It has Nox, a RAG chat with a streaming-safe prompt injection guard and a 21-case suite that runs against the real API, with a public scoreboard.

Stack

AI
LLMs · RAG · Embeddings · Vector search · Agents · Prompt engineering
Backend
Java · Spring Boot · C# · .NET · REST APIs
Frontend
Angular · TypeScript · Next.js
Data and infra
SQL Server · PostgreSQL · MongoDB · Docker · Git

Education

  • Systems Analysis and Development (associate degree)expected 2027
  • Law (bachelor's degree)completed
  • Courses: Java · Angular · C# .NET