MasTec - - Responsibilities: Promote and comply with all Company and safety policies and procedures; Select type and size of pipe and related materials according to job specifications; Inspect worksite to determine presence of obstructions and to determine that holes will not cause structural weakness; Cut pipe using hacksaw, pipe cutters, hammer and chisel, cutting torch and pipe cutting machine; Test piping system for leaks by increasing pressure in pipes and observing gauges attached to pipes for indication of leaks