A growing transportation and fleet operation in Cumberland, MD is actively seeking an experienced Heavy-Duty Diesel Mechanic to join their maintenance team. This position is ideal for a technician who takes pride in quality workmanship, values safety, and enjoys troubleshooting and repairing heavy-duty diesel equipment in a fast-paced shop environment. The successful candidate will be responsible for maintaining and repairing a fleet of diesel trucks and trailers to ensure maximum uptime and operational efficiency. Key Responsibilities Diagnose and repair diesel engines, electrical systems, brakes, suspensions, transmissions, and other truck and trailer components Perform preventative maintenance and scheduled service inspections Troubleshoot mechanical and electrical issues using diagnostic software and tools Complete DOT inspections and ensure equipment remains compliant with safety regulations Accurately document repairs, parts usage, and maintenance records Inspect equipment to ide...