7 or more years of experience in vehicle maintenance (light, medium, and heavy duty), heavy industrial equipment, outsourced repair operations, vendor management, and the review and audit of repair estimates, invoices, billing, and workmanship. 5 or more years' experience in vehicle maintenance (light, medium, and heavy duty), heavy industrial equipment, outsourced repair operations, vendor management, and the review and audit of repair estimates, invoices, billing, and workmanship.