Worked on the mmoayyed/cas repository to deliver a performance enhancement for OIDC WebFinger discovery in March 2025. Focused on optimizing the query parameter regular expression, the developer made it more permissive to accelerate pattern matching while maintaining existing behavior. This adjustment reduced latency in the OIDC discovery process, resulting in faster authentication flows and improved responsiveness under load. The work demonstrated skills in Java, backend development, and regular expressions, with all changes traceable to a specific commit linked to the relevant issue. No bugs were fixed during this period, and the update was isolated to the regex logic for safety.