JUNKYARD BUY is a job description for someone who purchases SCRAP metal from junkyards. This person is responsible for finding and buying SCRAP metal from junkyards, which can then be recycled or reused. They must have an eye for quality and be able to negotiate prices with the junkyard owners. The job requires knowledge of different types of metals and their value, as well as the ability to identify and purchase valuable SCRAP metal.