Aggregate Industries, a leading supplier of quality, construction building materials in the United States, and a subsidiary of LaFargeHolcim, has an immediate opening for a Mechanic/Welder to support 3rd Shift operations at Millville Quarry in Harper's Ferry, West Virginia. This position is primarily responsible for the diagnosis and repair of a wide variety of fixed mechanical equipment, systems and machinery such as valves, motors and pumps, as well as the maintenance of crushers, conveyor belts, pulleys, pumps, screens and screen bearings. This position works from 10:00 p.m. until 7:00 a.m..