Pile Drivers are people who work with pile-driving rigs.  Pile-Driving rigs are big machines that look like cranes, but shake the ground as they drive metal, concrete or wood piling into the earth during the early stages of construction.  Usually pile drivers are the first workers at the construction site. They drive concrete and metal piling as part of the foundation system upon which skyscrapers are built, and they drive wood and concrete piling to hold up docks, wharfs and bridges.  In some cases they work on offshore oilrigs and as commercial divers involved in underwater construction.

Pile Drivers generally work eight hour days starting at 7:00 or 8:00 in the morning.  However, on projects like bridges, highways or overpasses, pile drivers may be required to work nights and weekends, and travel long distances.