The Sr Mobile Trailer Technician will be responsible for performing certified DOT inspections, Preventative Maintenance inspections, light and advanced repairs, and other duties as assigned such as aluminum and chem-lite, trailer brakes, air lines, auxiliary pumps and engines, liftgates, brake chambers, welding, fabrication, replacement of panels, body and framework. • Diagnose, adjust, and perform repairs on various types of trailer equipment, and systems including, but not limited to the following: aluminum and chem-lite, trailer brakes, air lines, auxiliary pumps and engines, liftgates, brake chambers, welding, fabrication, replacement of panels, body, and framework.