Recruiting doctoral candidates requires clear visibility of relevant research opportunities and efficient support throughout the application process. As TUMApply evolves into a unified portal for managing doctoral applications at the Technical University of Munich, further enhancements are necessary to strengthen usability and engagement for prospective candidates. This thesis designs and implements a topic-based job categorization and notification system that enables applicants to subscribe to subject areas and receive automated email alerts when relevant positions become available. A dedicated profile section allows users to manage personal data and upload reusable documents, improving usability and reducing repetitive effort. The project further ensures that each submitted application remains exactly as it was at the moment of submission, so later updates to a user’s profile no longer alter previously completed applications.