Senior Mobile Trailer Technician - On-Site Lead

Fleet Services by Cox Automotive; San Antonio (TX); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Weekly pay

Safety boots reimbursement

Uniforms provided

Company truck at home

Technical training and career path

Job summary

Cox Fleet is hiring a Sr. Mobile Trailer Technician for on-site work performing certified DOT inspections, preventive maintenance, and light to advanced repairs on trailers and related equipment.

You will lead on-site tasks, triage complex repairs, and act as a consultant to customers and fellow technicians. You will work in a mobile/field environment with guaranteed safety training, DOT compliance, and a clear career path within Cox Fleet.

Qualifications

• High School Diploma or GED required; 5 years of related field experience or equivalent combination.
• DOT/FMCSA knowledge and ability to complete DOT forms and inspections.
• ASE T8 (PMI) and CDL-A within 18 months preferred/required.
• DOT medical card valid; safe driving history required.

Responsibilities

• Perform scheduled PMs and DOT inspections on trailers in mobile/field environment.
• Perform repairs on trailer systems (brakes, air lines, liftgates, weld/fabrication).
• Document work orders with photos and RO details using TRAIT app on iOS.
• Manage parts inventory, pre/post-trip vehicle checks, and safety compliance.
• Communicate estimates and obtain approvals from management; liaise with customers.

Skills

Safety awareness

Diagnostics

Customer communication

PM inspection

Education

High School Diploma/GED

ASE T8 PMI

CDL-A License

Tools

Hand tools

DOT paperwork tools

Welding equipment

Job description

Cox Fleet is hiring a Sr. Mobile Trailer Technician for on-site work performing certified DOT inspections, preventive maintenance, and light to advanced repairs on trailers and related equipment.

You will lead on-site tasks, triage complex repairs, and act as a consultant to customers and fellow technicians. You will work in a mobile/field environment with guaranteed safety training, DOT compliance, and a clear career path within Cox Fleet.