A developer works on the GPRS Tunneling Protocol Version , used in mobile communication for transmitting user data and signalling information. The developer designs, codes, tests, and debugs software applications based on . They ensure the smooth transfer of data packets over the network by managing the IP tunnels. They also handle tasks like creating data tunnel endpoints, deleting sessions, and managing mobility procedures. They collaborate with network engineers to troubleshoot and resolve issues. Additionally, they stay updated with new trends and advancements in mobile communication technologies to improve the efficiency and performance of -based systems.