Jorge Alegre Rubio

Banco Sabadell

Development and maintenance of the official banking app on a hybrid Swift/Objective-C codebase with layered architecture. Integration of native functionalities, WebViews, and bidirectional JS↔native communication. Implementation of new banking operations, adaptation to regulatory requirements, and continuous improvement of UX. Work in a large-scale environment with frequent releases, session flag management, multi-environment and multi-client support, incident resolution, and performance and stability optimization.

Mercadona

Native iOS app for internal use for managing work orders and physical asset inventory, aimed at field technicians in multi-site organizations. Management of orders by status (pending, in progress, urgent corrective), asset scanning via QR/barcode, and spare parts inventory control between warehouses and centers. Includes purchase orders with a multi-state lifecycle, filtering by priority and operational calendar, and role-based access control with segmented visibility by center/zone. Reduces response times in corrective maintenance, centralizes asset traceability, and improves coordination among distributed technicians.

Santander Digital Wealth

Private banking app for investment clients: remote management of portfolios and financial assets without needing to visit an office. 100% digital opening of investment accounts in euros and dollars, with operations in international markets. Services adapted to the client's profile (investment tracking, position consultation, and real-time financial management) and security and privacy mechanisms aligned with the regulations of each territory through secure authentication.

First professional development internship in iOS, integrated into a product team working on a real, production native application. It was my leap from the classroom to professional development, and where I consolidated Swift as my primary language.

During this period, I joined the team's daily routine following their agile methodology, taking on tasks within the development cycle and progressively gaining autonomy.

Responsibilities and contributions:

Development of new features and bug fixing in a native iOS app with Swift, participating in user interface screens and components.

Work on an existing codebase, learning to read and understand others' code, respect team conventions, and maintain project consistency.

Use of version control with Git and a workflow based on branches, pull requests, and code reviews.

First contact with architectural patterns (MVVM) and separation of concerns to write maintainable and testable code.

Writing tests to validate the behavior of the developed functionality.

Active participation in team meetings (dailies, refinements) and task estimation.

Key learnings: I acquired a solid foundation in native iOS development, learned to work in a team on a real product with users, to ask questions and communicate effectively, and to deliver small, well-defined changes. This stage defined my vocation for iOS development and laid the foundation for my career as a professional programmer.