Senior Mobile Diesel & Trailer Tech — New Hire Bonus

Cox Automotive, Inc.; Tucson (AZ); On-site; USD 34,000 - 55,000; Full time

Benefits offered by this job

Weekly pay

Take service truck home daily

Company cell phone provided

Tuition assistance

Job summary

Cox Automotive, Inc. is seeking a Sr Mobile Diesel & Trailer Technician to perform license DOT inspections, preventative maintenance, diagnostics, and repairs in a mobile/field setting.

You will work independently with a company vehicle, servicing a range of trailer and truck equipment while maintaining documentation and safety standards. You will manage parts on the company truck, coordinate with clients, and follow DOT regulations.

Qualifications

• High School Diploma or GED; 5 years of related field experience (or equivalent).
• Own set of hand tools required.
• OEM training and certifications preferred.
• DOT pre-employment background screening and DOT physical may be required.
• Valid driver's license with interstate operating authority.

Responsibilities

• Provide mobile service and maintenance for light, medium, and heavy-duty vehicles.
• Perform PMs, DOT inspections, and follow-up repairs in field environments.
• Inspect and repair trailer equipment and truck components (electrical, braking, cooling).
• Diagnose malfunctions, test with instruments, and road test to verify repairs.
• Document work with RO details using company iOS device and TRAIT app.
• Manage parts inventory on the service truck and coordinate with management.

Skills

DOT inspections

Mobile maintenance

Electrical systems

Diagnostics

Tool use

Safety compliance

Education

High School Diploma/GED

Job description

Cox Automotive, Inc. is seeking a Sr Mobile Diesel & Trailer Technician to perform license DOT inspections, preventative maintenance, diagnostics, and repairs in a mobile/field setting.

You will work independently with a company vehicle, servicing a range of trailer and truck equipment while maintaining documentation and safety standards. You will manage parts on the company truck, coordinate with clients, and follow DOT regulations.