During November 2024, João delivered the Diagram Generation Backend Service for the FEUP-MEIC-DS-2024-25/ai4sd repository, enabling automated code-to-diagram generation through dedicated API and chat endpoints. He developed the service using Node.js and Express.js, leveraging Docker to ensure reproducible deployments and facilitate integration with CI/CD pipelines. The backend is designed to support future expansion, including Gemini-powered diagram rendering, and establishes a foundation for automated architecture visualization. João’s work focused on robust API development and containerization, addressing the need for streamlined design reviews and reducing manual diagramming effort. The project demonstrates depth in backend engineering and infrastructure setup.