Brown & Root Industrial Services - - Responsibilities: Provides leadership, instruction, and guidance to other craft workers in work crew, providing assistance to Foreman, while working in the capacity of a journeyman.; Assembles, analyzes for defects, and repairs boilers, tanks, vats and pressure vessels, boiler auxiliaries and ancillaries according to blueprints specifications, using power tools and hand tools.; Signals crane operator in lifting parts to specific positions.; Aligns structures or plates sections to assemble boiler frame, tanks or vats using plumb bobs, levels, wedges, dogs or turnbuckles.; Tests assembled vessels by pumping water or gas under specified pressure into vessels and observing instruments for evidence of leakage.