Developed a multi-channel notification system for the SwEng2-2025i/MJ7h repository, leveraging Python, Flask, and REST API principles. The system enables users to register preferred notification channels and automatically falls back to alternatives if needed, utilizing the Chain of Responsibility design pattern for flexible message delivery. Centralized logging and Swagger documentation were integrated to enhance observability and API accessibility. Additionally, performed targeted repository maintenance by removing a stale subproject dependency reference, improving build reliability and repository hygiene. This work focused on backend development, emphasizing maintainability, clear API design, and scalable communication infrastructure to support robust customer notification workflows.