Military mechanics, such as Army 91L (Construction Equipment Repairer), 91B (Wheeled Vehicle Mechanic), 91D (Power Generation Equipment Repairer), USMC 1341 (Engineer Equipment Mechanic), and Navy Seabee Construction Mechanics (CM). More experienced applicants will have experience with heavy drill rigs (Klemm, SoilMec, and or Watson) used in geotechnical construction, concrete pumps, air compressors, generators, and other heavy diesel equipment.