Mobile Diesel Tech II

Cox Fleet, headquartered in Indianapolis, is a leading provider of on‑site mobile maintenance and repair services for light, medium, and heavy‑duty trucks and trailers.

The Mobile Diesel Technician II performs DOT inspections, preventive maintenance, light and advanced repairs, and advanced diagnostics. The role requires independent work, high productivity, and strong customer communication.

• 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 truck equipment such as electrical, braking, cooling, starters, alternators, fan clutches, engine electronics, diesel steering systems, engines (gas and diesel), transmissions (manual and automatic), clutches, and differentials.
• Diagnose, adjust, and repair various truck equipment, using test instruments like handheld computers and pressure gauges.
• Inspect, test, and listen to defective equipment to diagnose malfunctions.
• Road‑test vehicles to confirm proper operation after repairs.
• Identify problems and evaluate alternatives using sound judgment.
• Manage parts inventory and equipment in the company‑issued service truck, performing periodic reconciliation.
• Maintain and operate the service vehicle, conduct safety checks, and complete pre‑ and post‑trip inspections.
• Communicate effectively with clients to assess needs and provide assistance.
• Prioritize concurrent tasks and manage daily schedule independently.
• Use hand tools, precision instruments, diesel tools, welding equipment, lifts, and jacks.
• Document work on Repair Orders (RO) using an iOS device and the TRAIT application.
• Accurately complete DOT forms and other required documentation in a timely manner.
• Work in compliance with safety, health, and environmental policies and federal regulations, including OSHA, EPA, and DOT.

• High School Diploma/GED and at least 3 years of related experience (additional education or experience may substitute).
• At least 3 years of experience with refrigerated equipment.
• Supply a complete set of hand tools necessary for duties.
• OEM training and certifications are preferred.
• Complete all company‑required training.
• Pass a DOT‑regulated pre‑employment background screening and DOT physical, or possess a valid DOT medical card with more than four months remaining.
• Must be at least 21 years old and hold a valid state driver’s license eligible for a Driver Qualification File.

• 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)

• Understand implications of new information for problem‑solving.
• Lift, bend, climb, stand, and walk for extended periods; perform moderately heavy labor.
• Perform repetitive tasks without fatigue.
• Communicate information succinctly and organize thoughts effectively.
• Determine appropriate tools and equipment for tasks.
• Accurately judge distances and spatial relationships.
• Use logic and reasoning to evaluate alternative solutions.

• Weekly pay—paid every Friday.
• Safe driving and tech efficiency bonuses.
• Reimbursement for safety boots, safety glasses, extreme weather gear, and uniforms (with laundry service where available).
• Company‑issued tablet and cellphone.
• Technical training and career advancement opportunities.
• Health, dental, and vision insurance starting Day One.
• 401(k) matching after 90 days: 100% match up to 6% contribution plus 2% discretionary company contribution.
• Accrued paid time off up to 200 hours (five weeks) based on tenure.
• Tuition assistance/reimbursement.
• Adoption and surrogacy assistance.
• Pet insurance.
• Employee discounts on vehicle purchases, cellphone plans, ride sharing, insurance, wellness/fitness incentives, and more.
• Multiple ERG and diversity groups, company‑paid volunteer hours.