Alejandro Cañadas developed a new Tramite API for the florezandres/Colombina-Backend repository, focusing on backend development using Java, Spring Boot, and RESTful API principles. He implemented the AperturaTramiteController, which provides endpoints for retrieving and updating tramite records by ID, ensuring proper HTTP status codes for success and error cases. The controller was cleanly separated from the TramiteService layer, promoting maintainability and clear responsibility boundaries. This API-first approach enabled external client applications to read and modify process records, streamlining workflow integration and automation. During this period, Alejandro concentrated on feature delivery, with no major bugs addressed or fixed.