On‑Site Mobile Diesel Technician II

Cox Automotive; Fredericksburg (VA); On-site; USD 40,000 - 61,000; Full time

Benefits offered by this job

Health, dental, vision insurance (DAY

401(k) matching

Paid time off

Tuition assistance

Adoption/Surrogacy assistance

Pet Insurance

Company-paid training

Job summary

Cox Fleet is hiring a Mobile Diesel Technician Level II to conduct scheduled maintenance, DOT inspections, and light repairs across a mobile/field environment. You will diagnose electrical and mechanical issues on trucks and trailers, manage parts and documentation, and ensure safety and regulatory compliance.

The role requires a HS diploma or GED, 3–5 years in related field, and ASE T8 certification within 18 months. A valid DOT medical card and 21+ years old are needed.

Qualifications

• HS diploma or GED; 3 years of related field experience, or 5 years experience alternative.
• Obtain ASE T8 (PMI) within 18 months.
• Compliance with DOT/FMCSA regulations and background/DOT physical requirements.

Responsibilities

• Perform PMs, DOT inspections, and follow-up repairs on light, medium, and heavy-duty vehicles in mobile/field settings.
• Diagnose and repair electrical, brake, cooling, engine, and hydraulic systems.
• Operate and document work using company-provided devices and TRAIT app.

Skills

Problem solving

Physical stamina

Effective communication

Tool selection

Attention to detail

Education

High School Diploma/GED

ASE T8 (PMI) certification

DOT/FMCSA compliance knowledge

Job description

Cox Fleet is hiring a Mobile Diesel Technician Level II to conduct scheduled maintenance, DOT inspections, and light repairs across a mobile/field environment. You will diagnose electrical and mechanical issues on trucks and trailers, manage parts and documentation, and ensure safety and regulatory compliance.

The role requires a HS diploma or GED, 3–5 years in related field, and ASE T8 certification within 18 months. A valid DOT medical card and 21+ years old are needed.