Description Best-One Tire & AutoCare is seeking a skilled and safety-conscious Heavy-Duty Truck and Trailer Mechanic to join our commercial service team. This role involves diagnosing, repairing, and maintaining commercial trucks and trailers both in-shop and on-site. The ideal candidate will have strong mechanical aptitude, experience with diesel engines and trailer systems, and a commitment to delivering exceptional customer service. Key Responsibilities Truck & Trailer Maintenance • Perform diagnostics and repairs on diesel engines, transmissions, brake systems, steering, and suspension. • Conduct alignments, welding, and metal fabrication as needed. • Inspect and service trailer components including tires, hubs, axles, and hydraulic systems. • Execute preventative maintenance services and DOT inspections. Road Service & Fleet Support • Operate heavy-duty service trucks and tools for mobile repairs. • Respond to emergency roadside service calls and perform on-site repairs. • Conduct fleet inspections and communicate mechanical needs to service and sales teams. Shop Operations • Maintain a clean and organized work environment. • Safely operate diagnostic equipment, lifts, jacks, and power tools. • Document services performed and submit reports to management.