Mobile Diesel & Trailer Mechanic II

Job Summary

To support growth of the company, Cox Fleet is hiring a Mobile Trailer Technician II to join our team. This dedicated on‑site position requires performing certified DOT inspections, preventive maintenance inspections, light repairs, and additional duties such as trailer brakes, air lines, auxiliary pumps, engines, liftgates, brake chambers, welding, fabrication, and panel replacement. The Mobile Trailer Technician II works at the customer's site, can perform advanced repairs under supervision, and learns additional advanced mechanical skills.

• Preventive maintenance and repairs on Thermo King, Carrier and other refrigeration equipment.
• Perform preventive maintenance and repair, DOT inspections on Freightliner and Mack Trucks, and trailers out of service with minimal supervision.
• Diagnose and repair or replace compressors, coils, electrical components, and other parts.
• Always follow and comply with safe operating practices and procedures.
• Manage parts inventory and equipment provided on the company‑issued service truck, performing periodic reconciliation.
• Maintain and operate the company‑issued service vehicle, conduct safety checks, and complete pre‑ and post‑trip inspections.
• Apply knowledge acquired through formal training or on‑the‑job experience to perform one’s job.
• Work with and listen effectively to clients and customers to assess their needs and provide assistance.
• Manage concurrent assigned tasks and prioritize work‑related activities and time allocations.
• Act with integrity, demonstrate honesty, keep commitments, and behave consistently, confidentially, and ethically.
• Perform scheduled preventative maintenance (PM), DOT inspections, and follow‑up repairs on trailers and equipment in a mobile/field environment.
• Respond to call‑center dispatched unscheduled service and maintenance requests.
• Use hand tools, precision instruments, trailer tools, welding equipment, and jacks.
• Document work according to company standards and upload pictures of work performed, parts used, and findings observed on Repair Orders (RO) using the company’s iOS device and proprietary TRAIT application.
• Accurately complete DOT forms and all other documentation in a timely manner.
• Work independently and manage one’s daily schedule.
• Maintain a high level of productivity and work within or close to most standard repair times.
• Obtain parts from approved local and national vendors as needed for repairs.
• Communicate with management and support team via email or phone to obtain approvals on repair estimates and retrieve purchase order numbers or discuss RO findings.
• Perform all work in compliance with organizational safety, health, and environmental policies and federal regulations, including OSHA, EPA, and DOT.
• Participate in and complete all company‑required safety training.
• Establish and maintain good working relationships with assigned customers and vendors.
• Perform minor adjustments and repairs on various trailer equipment and systems.
• Adhere to company policies, processes, and procedures.
• Remain up to date on safety protocols and procedures.
• Diagnose, adjust, and repair various trailer equipment and systems.
• Identify problems, determine accuracy and relevance of information, and use sound judgment to generate and evaluate alternatives.
• Inspect, test, and diagnose defective equipment using test instruments such as handheld computers and pressure gauges.
• Assist Mobile Trailer Technician I with diagnostics.

• High School Diploma or GED and at least 3 years of experience in a related field (alternative qualifications such as a higher degree or 5 years of experience are acceptable).
• At least 3 years of experience with refrigerated equipment.
• Possess and supply a set of hand tools necessary to perform job duties.
• Obtain Automotive Service Excellence (ASE) certification T8 (PMI) within 18 months.
• Obtain 608/609 certification within 18 months.
• Candidate must successfully complete a DOT‑regulated pre‑employment background screening and DOT physical prior to employment.
• A current valid DOT medical card with more than 4 months until expiration may be submitted instead of a DOT physical; otherwise a DOT physical is required.
• Must be…