A hopper bottom job focuses on driving a truck with a hopper bottom trailer. Hopper bottom trailers transport bulk products like grain and corn, and you empty the cargo through hoppers at the bottom. Your duties as a hopper bottom driver include transporting products in this specialized container. You haul these hopper bottom trailers with a semi tractor. In addition to your driving responsibilities, you also take steps to load and unload the trailer. Some hopper bottom drivers drive a company truck, while others own or lease their tractor and work on a contract basis.