An developer is a software specialist who uses the framework to create dynamic, user-friendly web applications. They integrate AJAX (Asynchronous JavaScript and XML) capabilities into JSF (JavaServer Faces) applications. Their tasks involve designing and developing web interfaces, ensuring seamless user interaction, debugging and fixing issues, and maintaining code quality. They also work on enhancing the application's performance and responsiveness. Their role requires a deep understanding of web standards, JavaScript, XML, and Java. They collaborate with other team members and clients to implement solutions that meet specific user needs, thereby improving the user experience.