An Apache TrafficServer developer utilizes the Apache TrafficServer, an open-source HTTP/. compliant caching proxy server, to optimize web service performance and scalability. They handle designing, developing, and maintaining server configurations to manage web traffic and load balancing. They also work on caching strategies to enhance website speed and efficiency. Their role involves troubleshooting any server issues and ensuring high availability and reliability of web services. Moreover, they may collaborate with other developers, system administrators, and network engineers to ensure seamless web service operations. They need to stay updated with the latest industry trends to implement the best practices.