Lola Campos Cipo developed the foundational financial transactions data model for the SwaplyAr-Backend-02 repository, establishing the core entities and relationships required for future transaction processing and reconciliation. Using TypeScript, NestJS, and TypeORM, she designed a scalable backend architecture that supports bank accounts, payment methods, and transaction details, laying the groundwork for payment, banking, and crypto flows. Her work focused on creating clear entity boundaries and a robust schema to ensure data integrity and extensibility. This initial feature provides a solid technical base for future enhancements, demonstrating depth in backend development and thoughtful planning for complex financial systems.