The employee must be able to work above ground at heights of a minimum of 50 feet aloft and/or working from scaffolding and/or man-lifts while working with machinery; in confined spaces and withstand extreme heat and cold in an outside climate or confined space. The employee may be exposed to the risk of electrical shock, moving mechanical parts, vibration, fumes, airborne particles, toxic or caustic chemicals, continual loud noise, and other hazards found in a heavy industrial shipyard environment.