Senior Mobile Diesel Technician | Lead Field Diagnostics

Fleet Services by Cox Automotive; Hopedale (MA); On-site; USD 70,000 - 105,000; Full time

Benefits offered by this job

Weekly pay

Benefits: Health, dental, vision

Tuition Assistance

Tool reimb./supplies

Uniforms provided

Job summary

Fleet Services by Cox Automotive is seeking a Sr. Mobile Diesel Technician to perform licensed DOT inspections, preventative maintenance, and advanced repairs in a mobile/field setting.

You will diagnose mechanical, electrical and electronic systems, manage parts and work orders, and ensure compliance with safety standards. The role emphasizes independent scheduling, on-site customer interaction, and providing high-level diagnostic assistance to other technicians.

Qualifications

• 3+ years of related field experience or higher in diesel maintenance.
• Experience with DOT inspections and preventative maintenance on fleet vehicles.
• OEM training and ASE certifications preferred.

Responsibilities

• Perform scheduled PM, DOT inspections, and repairs on light to heavy-duty vehicles in mobile/field settings.
• Diagnose and repair electrical, hydraulic, mechanical and electronic systems on trucks and trailers.
• Document work performed and parts used using company tools and systems.
• Maintain safety and compliance with DOT/OSHA regulations and company policies.

Skills

ASE Certifications

DOT inspections

Diagnostics

Education

High School Diploma or GED

Tools

iOS TRAIT app

Hand tools

Job description

Fleet Services by Cox Automotive is seeking a Sr. Mobile Diesel Technician to perform licensed DOT inspections, preventative maintenance, and advanced repairs in a mobile/field setting.

You will diagnose mechanical, electrical and electronic systems, manage parts and work orders, and ensure compliance with safety standards. The role emphasizes independent scheduling, on-site customer interaction, and providing high-level diagnostic assistance to other technicians.