Luan Blum developed the backend foundation for the Competition Service in the bettercodepaul/swt2-bsa-backend repository, focusing on establishing a robust Spring Boot skeleton to support future user-facing features. He implemented build and test workflows using Maven, enabling reliable CI/CD and faster development cycles. Luan introduced structured error handling and designed data transfer objects for core entities, which improved code maintainability and architectural clarity. By standardizing constant naming conventions and laying the groundwork for competition classes, configurations, and download features, he addressed scalability and maintainability concerns. His work provided a solid technical base for subsequent REST API development in Java.