You’ll earn a competitive hourly wage, not flat rate , plus monthly efficiency bonuses, overtime after 40 hours per week, paid training, certification reimbursement, and a yearly boot and tool allowance . As a Diesel Technician, you’ll diagnose, repair, and maintain Class 6, 7, 8, and 9 medium, heavy, and severe-duty trucks , as well as school buses, passenger buses, and coach buses .