A Lithium developer brings proficiency in a lightweight, fast, and flexible PHP MVC Framework. They can develop highly customizable applications with efficient code, adhering to web standards. Their knowledge of Lithium's robust routing system ensures seamless navigation, enhancing user experience. They can leverage Lithium's testing and filtering capabilities, ensuring an application's robustness and security. Furthermore, their understanding of Lithium's tight integration with MongoDB can facilitate efficient data handling. Hiring a Lithium developer can, therefore, lead to the creation of high-performance, secure, and scalable web applications meeting specific business needs.