During October 2024, Pablo Gonzalez developed the Tramite Change History Tracking feature for the florezandres/Colombina-Backend repository. He designed and implemented a new backend controller and service using Java and Spring Boot, enabling the registration and retrieval of change history entries linked to trámite records. This addition enhanced the system’s auditing capabilities and improved workflow modification management, supporting compliance readiness and operational transparency. By focusing on backend development and REST API design, Pablo strengthened the architecture for auditability and future extensibility. The work addressed traceability requirements, allowing for more efficient incident investigation and robust process change tracking within the application.