Telecommunications engineers design, test and build the various technologies that allow people to communicate over distances. They may work in fields such as telephone and internet networks, radio and television broadcasting and satellite communications. Telecommunications engineers usually work for the major telecommunications companies, or for large organisations with private communication networks, such as remote mine sites in the Pilbara region. They design telecommunication networks, deciding on the technology to be used and where cables or broadcasting equipment needs to be placed, and oversee installation. These workers may also be responsible for testing and repairing faults.