During October 2024, contributed to the florezandres/Colombina-Backend repository by developing a Tramite Change History Tracking feature using Java, Spring Boot, and REST APIs. This work introduced a new backend controller and service designed to register and retrieve change history entries associated with trámite records, enabling comprehensive traceability of process modifications. The implementation enhanced the system’s auditing capabilities and improved workflow modification management, supporting compliance readiness and facilitating incident investigations. By linking history entries directly to trámite records, the solution strengthened the backend architecture for auditability and future extensibility, addressing operational transparency requirements within the existing backend infrastructure.