Sr Mobile Diesel Mechanic Tue - Sat $2000 New Hire Bonus

Fleet Services by Cox Automotive; Augusta (GA); On-site; USD 75,000 - 105,000; Full time

Benefits offered by this job

Health Insurance

Dental Insurance

Vision Insurance

Paid Time Off

Tuition Assistance

Service Truck Home

Company Laptop

Cellphone Provided

Retirement Plan

Job summary

Fleet Services by Cox Automotive is seeking a Sr. Mobile Diesel Technician to lead field repairs and advanced diagnostics for light to heavy‑duty fleets. You will perform DOT inspections, PMs, and on‑site repairs, while guiding junior technicians and coordinating with customers.

You will diagnose complex issues, manage parts on service trucks, and document findings using our TRAIT app. A valid DOT card and ASE certifications are required within 18 months.

Qualifications

• Must have a high school diploma or GED with related experience or higher education/certifications.
• Achieve ASE T8 (PMI) certification within 18 months of start date.
• Achieve ASE 608/609 certification within 18 months of start date.
• DOT pre-employment background screening and DOT physical are required before employment.

Responsibilities

• Perform DOT inspections and scheduled PMs for light to heavy‑duty vehicles in field/mobile settings.
• Diagnose and repair diverse truck systems including electrical, hydraulics, brakes, and engines.
• Road-test vehicles to verify repairs and troubleshoot issues on site.
• Manage parts on service trucks and reconcile inventory periodically.
• Document RO notes with photos using TRAIT app on iOS devices.
• Ensure compliance with OSHA, EPA, and DOT regulations.

Skills

DOT inspections

PM inspections

Diagnostics

Electrical systems

Hydraulics

Welding

Tools

Safety compliance

Communication

Education

High School Diploma or GED

ASE T8 (PMI)

ASE 608/609

DOT medical card

Tools

iOS devices

TRAIT application

Parts inventory systems

Job description

Cox Fleet is the leading provider of on‑site mobile maintenance and repair services nationwide, offering mobile fleet service for light, medium, and heavy‑duty trucks and trailers. The company operates more than 50 nationwide service centers that provide accident repair, painting, refurbishment, and heavy mechanical repair. Cox Fleet supports fleets 24/7 with a call center and scheduled or unscheduled services at any time, anywhere.

Shift: Tuesday – Saturday

Position Overview

The Sr. Mobile Diesel Technician will perform licensed DOT inspections, preventative maintenance inspections, light and advanced repairs, advanced mechanical/hydraulic/electrical diagnostics, and other duties as assigned. This role is heavily relied upon for advanced diagnostics and triage of complicated repairs by Mobile Diesel Technician I/II, serving as the lead on job sites for customers and technicians. Successful technicians comply with all company policies and achieve high performance metrics.

Duties

• Perform scheduled preventative maintenance (PM), DOT inspections, and follow‑up repairs on light, medium and heavy‑duty vehicles in a mobile/field environment.
• Make minor adjustments and repairs on diverse truck equipment, including electrical, brake, cooling, starter/alternator, fan clutch, engine electronics, diesel steering systems, engines (gas and diesel), transmissions, clutches, and differentials.
• Diagnose, adjust, and repair various truck equipment using test instruments such as handheld computers and pressure gauges.
• Road‑test vehicles to verify proper functionality.
• Identify problems, assess the accuracy and relevance of information, and evaluate alternatives using sound judgment.
• Manage parts inventory on company‑issued service trucks and perform periodic reconciliation.
• Maintain and operate company‑issued service vehicles, conduct safety checks, and perform pre‑ and post‑trip inspections.
• Listen to clients and customers, assess their needs, provide information, and resolve problems or satisfy expectations.
• Prioritize and manage multiple tasks, allocating time effectively.
• Use hand tools, precision instruments, diesel tools, welding equipment, lifts, and jacks.
• Document work on Repair Orders (RO) using company‑issued iOS devices and the proprietary TRAIT application, including photos, parts used, and findings.
• Accurately complete DOT forms and other required documentation in a timely fashion.
• Work independently and manage daily schedule.
• Maintain high productivity, meeting or exceeding standard repair times.
• Source parts from approved vendors as needed.
• Communicate with management via email or phone to obtain repair estimate approvals, purchase order numbers, or discuss RO notes.
• Perform all work in compliance with safety, health, environmental policies, and federal regulations (OSHA, EPA, DOT).

Requirements

• High School Diploma or GED and at least 5 years of related experience. Alternatively, a higher degree, certification, or 3–7 years of experience may be considered.
• Possession of necessary hand tools for job duties.
• Obtain Automotive Service Excellence (ASE) Certification T8 (PMI) within 18 months.
• Obtain 608/609 certification within 18 months.
• Pass DOT‑regulated pre‑employment background screening and DOT physical prior to employment.
• Current DOT medical card with at least 4 months remaining, or a DOT physical if less than 4 months.
• Minimum age 21 due to interstate operating regulations.
• Valid driver’s license required; ability to maintain Driver Qualification File.

Required Certifications (within 18 months)

• ASE T8 (PMI)
• ASE 608/609

Preferred Certifications

• ASE T3 (Drivetrain)
• ASE T4 (Brakes)
• ASE T5 (Suspension)
• ASE T6 (Electrical and Electronic Systems)
• ASE T7 (HVAC)
• ASE A8 (Engine Performance)
• ASE L1 (Advanced Engine Performance Specialist)

Skills & Abilities

• Apply new information for problem‑solving and decision‑making.
• Perform physically demanding work, including lifting, bending, climbing, standing, and walking for long periods.
• Maintain focus and perform repetitive tasks without fatigue.
• Communicate clearly and effectively, engaging in two‑way communication.
• Determine appropriate tools and equipment for tasks.
• Assess spatial relationships accurately.
• Use logic and reasoning to evaluate solutions.

Benefits

• Safe driving & tech efficiency bonuses
• Safety boots & glasses reimbursement
• Extreme weather gear (cold & hot)
• Uniforms provided with laundry service where available
• Take service truck home daily (no personal gas cost)
• Company laptop & cellphone provided
• Technical training to advance career
• Dedicated career path – over 50% of front‑line managers promoted from within
• Health, dental, vision insurance starting day one
• 401(k) matching after 90 days (100 % match up to 6 % + 2 % discretionary)
• Paid time off up to 200 hours based on tenure
• Tuition assistance/reimbursement
• Adoption/Surrogacy assistance
• Pet insurance
• Multiple employee resource groups, diversity groups, and paid volunteer hours
• Employee discounts on vehicle purchases, cellphone plans, ridesharing, home/rental insurance, wellness/fitness incentives, and more

EOE, including disability and veterans.