Sr. Mobile Diesel Mechanic

Sr. Mobile Diesel Mechanic – Cox Automotive Inc.

Fleet Services, a Cox Automotive Company, is one of the largest fleet maintenance providers in the United States. Headquartered in Indianapolis, we offer on‑site mobile maintenance and repair services for light, medium, and heavy‑duty trucks and trailers across a network of 50+ service centers. Our team is supported by a 24/7 in‑house call center and delivers scheduled and unscheduled services to fleets anytime, anywhere.

Massachusetts, United States

• Perform scheduled preventative maintenance (PM), DOT inspections and post‑inspection repairs on light, medium and heavy‑duty vehicles in a mobile/field environment.
• Diagnose, adjust, and repair truck equipment including electrical, braking, cooling, air‑conditioning, engine, transmission, clutch, differential, and steering systems.
• Conduct road tests to verify repairs and ensure vehicle functionality.
• Use handheld diagnostic devices and pressure gauges to identify and resolve malfunctions.
• Manage parts inventory, maintain company‑issued service vehicles, and conduct pre‑/post‑trip safety inspections.
• Document repairs, parts used, and findings using iOS devices and the TRAIT application.
• Communicate repair estimates, purchase orders, and repair order (RO) findings with management and support personnel.
• Perform work in compliance with OSHA, EPA, DOT regulations and company safety policies.
• Operate independently, prioritizing tasks and maintaining a high level of productivity.
• Maintain a reliable driver qualification file and a safe driving record.

• High School Diploma or GED with at least 3 years of related experience; or 5 years of experience with a related degree/certification.
• Minimum 3 years of experience working with refrigerated equipment.
• Valid driver’s license and a clean driving record.
• Must be at least 21 years old and a resident of the United States.
• Successful completion of a DOT‑regulated background screening, DOT physical, or a valid DOT medical card with more than 4 months remaining.
• Current or acquired OEM training; ASE certifications preferred.
• Completion of all company‑required training.

• ASE T8 (PMI) certification
• ASE 608/609 certification

• ASE T2 (Diesel Engines)
• 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)
• ASE L2 (Electronic Diesel Engine Diagnosis Specialist)

• Ability to perform physical work for extended periods, including lifting, bending, and climbing.
• Strong logical reasoning and problem‑solving skills.
• Effective verbal and written communication.
• Judges tool and equipment selection accurately.
• Precise spatial judgment for evaluating objects and distances.

Hourly base pay range: $35.48 – $53.27 per hour. Compensation may vary based on location, candidate qualifications, and additional incentive programs.

• Health, dental, and vision insurance effective Day 1.
• 401(k) matching after 90 days – 100% match up to 6% of contribution plus an additional 2% discretionary company contribution.
• Accrue up to 200 hours (approximately 5 weeks) of paid time off based on tenure.
• Tuition assistance/reimbursement.
• Adoption/ Surrogacy assistance.
• Pet insurance.
• Multiple Employee Resource Groups, diversity groups, and company‑paid volunteer hours.
• Discounts on vehicle purchases, cellphone plans, ride sharing, home/rental insurance, and wellness/fitness incentives.

• Safe driving & tech‑efficiency bonuses.
• Reimbursement for safety boots & glasses.
• Extreme‑weather gear (cold & hot).
• Uniforms with laundry service where available.
• Daily use of service truck, eliminating gas costs.
• Tablet & company cellphone provided.
• Technical training for career advancement.
• Dedicated career path – more than 50% of front‑line managers are promoted from within.

Cox Automotive encourages Veterans to apply.

Applicants must be authorized to work in the United States without current or future sponsorship. No OPT, CPT, STEM‑OPT, or visa sponsorship available.