During June 2025, this developer enhanced the CustomerAutoZoneSelfService/cazss-frontend and cazss-backend repositories by overhauling the endpoint management UI and implementing robust backend update flows. They rebuilt the frontend using Svelte and TypeScript, introducing new create and edit flows, role-based UI visibility, and improved state management. On the backend, they centralized user data handling with Java and Spring Boot, replacing hardcoded logic with a reusable utility and adding comprehensive tests. Their work addressed authentication strategy handling, unified response pattern management, and cleaned up user filters, resulting in improved maintainability, data integrity, and security across both frontend and backend systems.