An AndEngine developer specializes in creating and designing games or apps for the Android platform using the AndEngine framework. They leverage the framework's features such as graphics rendering, physics engine, and multi-touch capabilities to create interactive, engaging, and visually appealing applications. Their tasks include writing code, debugging, testing, and optimizing the performance of the game or app. They may also integrate elements such as in-app purchases, advertisements, and social media sharing. They need to ensure a smooth user experience, troubleshoot issues, and regularly update the application with new features or improvements.