May 2025: Across backend and frontend, delivered a set of enhancements to the reservation lifecycle, payment handling, and notification delivery that improved reliability, user experience, and testing fidelity. Backend features include Reservation Notification System enhancements (state-change alerts to property owners; reservation confirmations with partial payments including montoPagado; enriched notification details with car images), code quality fixes, and a bug fix to notification read status; a Database Seeding Script to provide deterministic test/dev data; Automatic reservation cancellation on non-payment with a manual trigger endpoint; and a Deposit Guarantee notification system for client and owner notifications on deposit confirmations. Frontend improvements to the Notification Center include UI/UX refinements, direct image URL usage, consistent time display using creadoEn, and ensuring latest notifications pass to modals. These changes reduce manual follow-ups, accelerate issue resolution, and strengthen end-to-end notification reliability. Technologies demonstrated include backend service architecture, REST API updates, data seeding, automated workflows, and frontend state/UI consistency.

April 2025: Delivered end-to-end notification capabilities across Frontend and Backend with a focus on user experience, reliability, and business impact. Key outcomes include: Frontend (Ssantivl12/RediBo_Front): Notification Center Enhancements delivering backend API integration, data transformation for display, delete functionality in the notification modal, UI/UX polish for the notification list, message truncation, and a new NotificationIcon component to visualize severity. Backend integration with UI data flows achieved. Backend (Ssantivl12/RediBo_Back): Rental Notifications System enabling end-of-rental reminders via a scheduled job that creates notifications for users not yet alerted; added cancellation notification flow through a new endpoint and service logic; background job updated to cover canceled rentals. Additional improvements: Corrected notification title for concluded rental to improve clarity and added dependency stability fix to remove duplicates between package.json and package-lock.json to ensure stable installs. Impact: strengthened user engagement with timely notifications, reduced build and runtime instability, and improved maintainability across the notification system. Demonstrated skills in React/TypeScript frontend development, Node.js backend services, scheduling tasks, API integration, UI design, and CI-friendly dependency management.