Under general supervision lays out and performs all types of welding on gas piping and equipment, structural members, special devices and other general welding. Directs the work of one other Gas Welder or Fitter 1/C or lower grade directly assisting him; may also direct others performing such duties as equipment operation, digging and directing traffic. Performs any of the duties of a Gas Fitter 1/C. Performs other related or less skilled work as directed.