Other forms: longshoremen
A person who works loading and unloading vessels in a harbor is a longshoreman. Many modern longshoremen use cranes and forklifts to move containers on and off container ships.
Other words for this job are stevedore and dockworker. The term longshoreman, commonly used in the U.S. and Canada, was derived from man-along-the-shore or man alongshore. Still, any laborer who moves goods onto or off of a ship can be called a longshoreman, even if they're not a man. There aren't as many of these jobs today as there once were, but there are still more than 100,000 longshoremen who work in dozens of U.S. ports.