Aerotek - - Responsibilities: Perform torch brazing on piping systems ranging from 1.5-inch to 4-inch diameter; Braze copper to copper and copper to steel joints for natural gas and industrial HVAC systems; Inspect brazed joints visually and mechanically for proper flow, penetration, and structural integrity; Perform pressure and leak testing using approved methods such as nitrogen testing, helium testing, vacuum decay, and soap solution; Maintain torches, regulators, temperature indicators, and gas supply systems