A pumpman is an unlicensed member of the engineering department of a merchant ship. Pumpmen are found almost exclusively on tankers, and on oil tankers in particular. Variations on the title can include chief pumpman, QMED/pumpman, and second pumpman.
A pumpman performs all work necessary for the safe and proper operation of the liquid cargo transfer system. This includes but is not limited to: liquid cargo transfer pumps, liquid cargo stripping pumps, liquid cargo coalesces and separators, strainers, filters, associated piping, valves, fittings, and deck machinery directly related to the transfer of liquid cargo.