Worked on backend enhancements for the jellyfin/jellyfin repository, focusing on asynchronous programming and API development using C#. Delivered two features aimed at improving performance and maintainability, including optimizing async calls in the CollectionController by applying ConfigureAwait(false) to align with established async patterns and reduce deadlock risk. Additionally, streamlined session management by removing the NowPlayingQueueFullItems property from session DTOs, which clarified code structure and simplified future maintenance. All changes were thoroughly documented to support future refactoring and onboarding. The work emphasized reliable async flows and efficient backend development, contributing to smoother user experiences and faster development cycles.