Developed and delivered the Aprendiz module for the IngAlim2023/sigevaBack and IngAlim2023/sigevaFront repositories, focusing on robust data modeling, authentication, and full CRUD workflows. Leveraged JavaScript, TypeScript, and SQL to implement secure user flows, region-aware Excel data import for administrators, and OTP-based voting enhancements. The work included extensive backend refactoring, route optimization, and integration of Excel processing for streamlined admin onboarding and improved data quality. Enhanced the admin dashboard with real-time statistics and usability improvements, while maintaining production readiness through codebase cleanup and updated team roles. Prioritized scalable user management and reliable data pipelines throughout the development process.