During her work on rdkcentral/meta-rdk-video and related repositories, Preeja Raveendran focused on build system management and system service stability. She updated BitBake recipes to ensure correct component versioning, improving build reproducibility and reducing integration risk. In C++ and Shell, she reinforced concurrency control and error handling in SystemServices, introducing mutex-based thread safety and robust string manipulation to prevent crashes during territory and region operations. By upgrading dependencies and aligning device and display services with the latest middleware, Preeja enhanced compatibility and reliability across environments. Her contributions demonstrated depth in build system configuration and concurrent systems engineering.