A Lighttpd developer specializes in the management and development of the Lighttpd web server environment. They are responsible for designing, coding, and modifying the server, tailored to a client's specifications. They ensure it's robust, efficient, and can handle high load conditions. They also implement security measures, improve the server's performance, and troubleshoot any issues that arise. Their role includes the integration of the server with databases, creating and implementing server scripts, and maintaining documentation. They collaborate with other developers to ensure seamless functionality and user experience. Their expertise lies in various programming languages like C, PHP, and Perl.