Tomás Fernández Valdés

Owned the frontend development of a production desktop ticketing system used by physical box office agents as part of an integrated event sales ecosystem (backoffice platform, online store, and PDA validation app). Designed and implemented modular UI architecture using React and TypeScript, building reusable components for high-frequency transactional flows. Integrated REST APIs using React Query with caching strategies to optimize data synchronization and reduce redundant network requests. Created reusable custom hooks and a scalable service-layer architecture for API communication. Focused on UI consistency and usability using Material UI within an Electron-based desktop environment. Implemented thermal printer integration, generating pixel-perfect PDF tickets and handling hardware communication within the Electron environment. Contributed to a Next.js-based admin dashboard by implementing a new reporting page for print history, including data table rendering and filtering logic.

Developed core game systems, including authentication for Android and iOS, NFC security, localization, cloud services (GCP) for authentication and mobile deployment configuration, and user interface components.

Designed and developed a full-stack administrative platform for managing customers and healthcare plans. Built secure authentication flows and implemented complete CRUD operations for client and plan management. Designed RESTful APIs using Node.js and Express, connecting a React-based frontend with a PostgreSQL database. Implemented a transactional points accumulation and redemption system tied to customer data records. Managed the full development lifecycle independently, from database design to deployment. Handled deployment and environment configuration using cloud hosting services.