Worked on the RedHatInsights/notifications-backend repository to deliver a Security Notification Severity Enhancement, focusing on backend development, email templating, and testing. Implemented a new Severity column in the security email template, updating the HTML to display severity levels directly to recipients. Extended test helpers to propagate severity data through payloads, ensuring end-to-end validation and alignment of the payload structure with the new feature. This enhancement improved the clarity and readability of security advisories, supporting faster triage of incidents. The work was completed in Java and HTML, emphasizing maintainable code and robust testing practices while addressing a specific need for clearer security communications.