An developer works on the Precision Time Protocol (PTP), a standard protocol for synchronizing clocks throughout a computer network. They design, implement, and maintain software that ensures precise time synchronization across network devices. This involves understanding network protocols, time synchronization mechanisms, and hardware capabilities. They may also be responsible for troubleshooting, enhancing the protocol's performance and accuracy, and ensuring compliance with the standard. Their work is crucial in industries where accurate timing is essential, such as telecommunications, power systems, and automation.