September 2025: Delivered cohesive regional data management, OTP-based voting security, and vote validation, complemented by a front-end end-to-end PDF election reporting capability. Key back-end refinements include a regional data model, controllers/services, and normalized endpoints with consistent IDs and timestamps; established ValidacionVoto with CRUD operations and required relationships to Aprendiz and Eleccion; implemented OTP generation/validation with email notifications and standardized routes; and shipped front-end PDF report generation using jspdf/jspdf-autotable with modal integration, dynamic data, pagination, and styling refinements. These changes improve data governance, security, auditability, and business value by enabling accurate regional data management, secure voting workflows, auditable results, and professional exportable reports. Technologies demonstrated include TypeScript/Node back-end development, ORM-style data modeling, routing and lifecycle updates, email integration for OTP, and jspdf-based report generation on the front-end.