Senior Mobile Diesel Technician – Lead Fleet Diagnostics & PM

Fleet Services by Cox Automotive; Charlotte (NC); On-site; USD 70,000 - 95,000; Full time

Benefits offered by this job

Weekly pay

Safety boots reimbursement

Safety glasses reimbursement

Tablet provided

Company cellphone provided

Technical training

Uniforms provided

Career path

Job summary

Cox Fleet in the United States is seeking a Sr. Mobile Diesel Technician to perform licensed inspections, preventative maintenance, and complex repairs on heavy, medium, and light trucks at customer sites.

You will diagnose electrical, hydraulic, and engine systems, manage parts on your service truck, complete DOT paperwork, and ensure safety standards while delivering high-quality mobile service.

Qualifications

• High School Diploma/GED or higher with related field experience.
• 3+ years in related field; diesel/heavy equipment experience preferred.
• DOT/FMCSA compliance and safety training completed or willing to obtain.

Responsibilities

• Perform scheduled PM and DOT inspections on light to heavy vehicles in mobile/field setting.
• Diagnose and repair electrical, mechanical, and hydraulic systems on diesel engines.
• Lead on-site diagnostics, triage, and communicate findings to customers.
• Maintain and operate service vehicle; manage parts inventory and RO documentation.
• Complete DOT forms and related compliance documentation in a timely manner.
• Work independently with strong time management and safety adherence.

Skills

Problem solving

Communication

Physical stamina

Manual dexterity

Tool selection

Education

ASE T8 (PMI) certification

ASE 608/609 certification

ASE T2 (Diesel Engines) certification

ASE T3 (Drivetrain) certification

ASE T4 (Brakes) certification

ASE T5 (Suspension) certification

ASE T6 (Electrical and Electronic Systems) certification

ASE T7 (HVAC) certification

ASE A8 (Engine Performance) certification

ASE L1 (Advanced Engine Performance Specialist) certification

ASE L2 (Electronic Diesel Engine Diagnosis Specialist) certification

Job description

Cox Fleet in the United States is seeking a Sr. Mobile Diesel Technician to perform licensed inspections, preventative maintenance, and complex repairs on heavy, medium, and light trucks at customer sites.

You will diagnose electrical, hydraulic, and engine systems, manage parts on your service truck, complete DOT paperwork, and ensure safety standards while delivering high-quality mobile service.