Sr. Mobile Diesel & Trailer Mechanic M - F Alternate​/Weekend work

Contact:
Text DFS3 to  while your application is being reviewed.

Veterans encouraged to apply.

Work Schedule: Monday - Friday 6 pm - 2:00 am, alternate weeks/weekends.

Cox Fleet, headquartered in Indianapolis, is one of the largest fleet maintenance companies in the country, providing on‑site mobile maintenance and repair services for light, medium, and heavy‑duty trucks and trailers. With 50+ nationwide service centers, we offer accident repair, painting, refurbishment, and heavy mechanical repair, supported by a 24/7 call‑center and scheduled/unscheduled services to fleets worldwide.

Sr. Mobile Diesel & Trailer Mechanic

The Sr. Mobile Diesel & Trailer Mechanic will perform licensed DOT inspections, preventive maintenance, light and advanced repairs, advanced mechanical/hydraulic/electrical diagnostics, and related duties. The role is a lead on jobsites, acting as a consultant for customers and technicians, and must meet performance metrics while complying with company policies.

• Perform scheduled preventive 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 various trailer equipment and systems (e.g., aluminum and chem‑lite, brakes, air lines, auxiliary pumps, engines, liftgates, brake chambers).
• Make minor adjustments and repairs on truck equipment (e.g., electrical, brake, cooling systems; starters/alternators; fan clutches; engine electronics; diesel steering; engines; transmissions; clutches; differentials).
• Diagnose, adjust, and repair trailer equipment and systems, including welding, fabrication, and replacement of panels, body, and framework.
• Diagnose, adjust, and repair truck equipment including electrical, brake, cooling systems, air conditioning, fan clutches, engine electronics, diesel steering, engines, transmissions, clutches, and differentials.
• Inspect, test, and listen to defective equipment to diagnose malfunctions using handheld computers and pressure gauges.
• Road test vehicles to diagnose malfunctions and ensure proper operation.
• Identify problems and evaluate alternatives using sound judgment.
• Manage parts inventory and company‑issued service truck, performing periodic reconciliation.
• Maintain and operate service vehicle with safety checks and pre/post‑trip inspections.
• Listen to clients and customers to assess needs and provide assistance or solutions.
• Prioritize concurrent tasks and allocate time effectively.
• Utilize hand tools, precision instruments, diesel tools, welding equipment, lift, and jacks.
• Document work on Repair Orders (RO) and upload photos using the TRAIT iOS app.
• Accurately complete DOT forms and other required documentation promptly.
• Manage own daily schedule with high independence.
• Maintain high productivity and adhere to standard repair times.
• Obtain parts from approved local and national vendors as needed.
• Communicate with management and support via email or phone for repair estimates and purchase orders.
• Perform all work in compliance with safety, health, environmental policies, OSHA, EPA, and DOT regulations.
• Conduct daily pre/post trip inspections of the service truck.

• High School Diploma or GED with at least 3 years of related experience (or equivalent combination of education and experience).
• At least 3 years of experience with refrigerated equipment.
• Supply needed hand tools.
• OEM training and certifications preferred.
• Complete all company‑required training.
• Age 21 or older (interstate commerce regulations).
• Valid driver’s license and ability to maintain Driver Qualification File.
• Must pass DOT‑regulated pre‑employment background screening, DOT physical, and have a current DOT medical card with at least 4 months remaining or be able to provide a DOT physical.

• 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…