Mechanical maintenance technicians are responsible for maintaining, troubleshooting, and repairing machinery. This machinery can include factory machines, medical equipment, construction equipment, laboratory equipment, or machinery in other industries. This is a job for people who excel at working with their hands. Spending most of their day on their feet, mechanical maintenance technicians have to have a certain level of strength and mobility to work on commercial machinery. Manufacturing, construction, HVAC, and medical industries are the largest employers of mechanical maintenance technicians.