The incumbent works under the guidance of qualified personnel to develop the skills required to inspect, maintain, troubleshoot, repair, overhaul, and service diesel-electric locomotives and related mechanical, electrical, pneumatic, hydraulic, and air brake systems. Enrollment in, eligibility for, or willingness to complete a company-approved or government-recognized apprenticeship or technical training program in heavy-duty equipment, diesel mechanics, automotive service, truck and coach, industrial mechanics, or a related mechanical trade, as applicable to the location.