Liquefied Petroleum Gas (LPG), Fuel, and Natural Gas Engineer Wanted. Required skills: at least two years of experience in LPG, fuel, and natural gas systems; experience in the design and engineering of LPG and fuel systems; good knowledge of AutoCAD and the preparation and review of technical drawings; knowledge of applicable codes and standards for LPG and fuel, as well as firefighting and safety; and experience in installation, testing, operation, and maintenance.