Mohamed Emad developed core backend and data management features for the Food-Change-Mood and Plan-Mate repositories, focusing on audit logging, game logic, and robust data handling. He implemented a CSV-based audit logging system with UUID-based IDs, enabling traceable and compliant data persistence, and built end-to-end UI flows for creating and retrieving audit logs. Using Kotlin, Java, and Gradle, Mohamed applied dependency injection, exception handling, and test-driven development to ensure maintainability and reliability. His work included refactoring, code cleanup, and the introduction of new use cases, resulting in improved system architecture and enhanced governance across both repositories.