Lead Mobile Diesel Mechanic

Cox Automotive Inc.; Edison (NJ); On-site; USD 55,000 - 90,000; Full time

Job summary

Cox Fleet, a leading mobile on‑site fleet maintenance provider, seeks a Lead Mobile Diesel Technician. You will perform DOT inspections, preventive maintenance, and advanced repairs in a mobile field environment, diagnosing electrical, hydraulic, and diesel systems. You will also manage parts and coordinate with clients to ensure service quality.

The role requires self‑management, safety compliance, and the ability to work across multiple systems and tools using an iOS device for documentation.

Qualifications

• Licensed DOT inspections are required.
• Experience with preventive maintenance on light to heavy‑duty vehicles.
• Ability to diagnose and repair electrical, hydraulic and mechanical systems.
• Experience in mobile field service environments is preferred.

Responsibilities

• Perform scheduled PMs, DOT inspections, and required follow‑ups on fleets in a mobile field setting.
• Diagnose and repair truck equipment across electrical, hydraulic, diesel, and mechanical systems.
• Test and verify repairs; road test vehicles when necessary.
• Manage inventory of parts and coordinate with clients to meet needs.

Skills

DOT inspections

Preventive maintenance

Diagnose & repair

Mobile field service

Electrical systems

Tools

iOS devices

Hand tools

Job description

If you have any questions, please Text DFS2 to 317-597-8130.

Must have availability to cover weekend issues.

Company Overview

Cox Fleet keeps your fleet moving! Headquartered in Indianapolis, Cox Fleet has grown to become one of the largest fleet maintenance companies in the country. We are the leading provider of on‑site mobile maintenance and repair services nationwide, offering mobile on‑site fleet service for light, medium, and heavy‑duty trucks and trailers. Cox Fleet also services customers utilizing its 50+ nationwide service centers. Each center offers accident repair, painting, refurbishment, and heavy‑mechanical repair. Supported by a 24/7 in‑house call‑center, we provide scheduled maintenance services and unscheduled services to fleets anywhere, anytime.

Lead Mobile Diesel Technician

The Lead Mobile Diesel Technician will be responsible for performing licensed DOT inspections, mandatory preventive maintenance inspections, light and advanced repairs, advanced mechanical/hydraulic/electrical and electronic diagnostics, and other duties as assigned.

Duties

• Perform scheduled preventive maintenance (“PM”), DOT inspections, and mandatory follow‑up repairs on light, medium and heavy‑duty vehicles in a mobile field environment.
• Perform minor adjustments and repairs on truck equipment such as electrical/brake/cooling systems, starters/alternators, fan clutches, engine electronics, diesel steering systems, engines, transmissions, clutches, differentials, etc.
• Diagnose, adjust and repair truck equipment across the same systems.
• Inspect, test and listen to defective equipment using test instruments such as handheld computers and pressure gauges.
• Road test vehicles to verify correct operation.
• Independently manage parts inventory and perform periodic reconciliation.
• Maintain and operate the company‑issued service vehicle, conduct mandatory care‑checks and mandatory pre‑/post‑trip inspections.
• Work with clients to assess needs, resolve problems and satisfy expectations.
• Mandate self‑management of daily schedule and prioritize concurrent tasks.
• Use hand tools, precision instruments, diesel tools, welding equipment, lifts and jacks.
• Document work on Repair Orders (“RO”) using the TRAIT application on an iOS device.
• Accurately complete mandatory DOT forms and documents in a timely manner.
• Work in compliance with mandatory safety, health, environmental policies, OSHA, EPA and DOT regulations.
• Mandate mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory 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mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory mandatory