Essential Duties and Responsibilities: Diagnose and repair heavy-duty trucks and trailers, including preventative maintenance, inspections, repair of major component groups including engine, powertrain, brakes, suspension, steering, frame attachments, cargo securement equipment, with safety as a top priority. Customers depend on Chief Carriers to transport goods to 48 contiguous states because they know we provide quick response, accurate ETA's, greater cargo security, logistics planning, and electronic data interchange support.