A gantry crane is also known as a bridge crane or tower gantry crane. These cranes straddle the objects that they lift, and the design allows them to lift heavy loads. Your duties as a gantry crane operator involve controlling these cranes as they lift and release their loads. Your responsibilities include moving the crane into position and ensuring that the load is secure. Gantry crane operators usually work in shipping ports, but you can also find employment on construction sites, rail yards, and other industrial settings. New gantry crane operators undergo training and earn certification before they are allowed to operate independently.