Sr Mobile Diesel Mechanic - Day Shift

CAI Cox Automotive Corp Svcs., LLC; Arizona; Hybrid; USD 45,000 - 65,000; Full time

Benefits offered by this job

Health, dental and vision insurance

401(k) matching after 90 days

Paid Time Off accrual

Tuition assistance/reimbursement

Uniforms provided with laundry service

Technical training for career advancement

Job summary

CAI Cox Automotive Corp Svcs., LLC in Arizona is looking for a skilled Mobile Diesel Mechanic to conduct scheduled maintenance and repairs on light to heavy-duty vehicles in a mobile environment. The ideal candidate will have at least 3 years of related experience and a high school diploma or GED.

This role involves diagnosing equipment issues, managing parts inventory, and maintaining high productivity standards while ensuring compliance with safety regulations. Competitive benefits and a career development path are offered.

Qualifications

• 3 years of related experience is required.
• Ability to maintain and supply necessary hand tools.
• Valid driver’s license and DOT medical card.

Responsibilities

• Perform maintenance and inspections on vehicles.
• Diagnose and repair truck equipment using various tools.
• Manage parts inventory and communicate with clients.

Skills

Problem-solving

Physical endurance

Equipment selection

Communication

Education

High school diploma or GED

Tools

OEM training and certifications

Job description

Responsibilities

• Perform scheduled preventative maintenance (PM), DOT inspections, and follow‑up repairs on light, medium and heavy‑duty vehicles in a mobile/field environment.
• Perform minor adjustments and repairs on truck equipment including electrical, brake, cooling, starter/alternator, fan clutch, engine electronics, diesel steering, engine (gas and diesel), transmissions (manual and automatic), clutch and differential systems.
• Diagnose, adjust, and repair truck equipment using handheld computers, pressure gauges, and other test instruments.
• Road test vehicles to confirm correct operation after repairs.
• Identify problems, assess information accuracy, and evaluate alternatives using sound judgment.
• Independently manage parts inventory on the company‑issued service truck and perform periodic reconciliations.
• Maintain and operate the service vehicle, performing safety checks and pre/post‑trip inspections.
• Effectively communicate with clients to assess needs, provide assistance, and resolve issues.
• Prioritize and manage concurrent tasks and allocate time efficiently.
• Use hand tools, precision instruments, diesel tools, welding equipment, lifts, and jacks as required.
• Document work and upload pictures, parts used, and findings on Repair Orders (RO) via the company iOS device and TRAIT application.
• Complete DOT forms and other documentation promptly.
• Work independently, manage daily schedule, and maintain high productivity, meeting standard repair times.
• Source parts from approved local and national vendors.
• Communicate with management and support teams to obtain repair approvals and discuss RO findings.
• Perform all work in compliance with safety, health, environmental policies and federal regulations (OSHA, EPA, DOT).

Requirements

• High school diploma or GED plus at least 3 years of related experience (alternative combinations of education, training, or experience are acceptable).
• At least 3 years of experience working with refrigerated equipment.
• Ability to supply and maintain necessary hand tools.
• OEM training and certifications preferred.
• Completion of all company‑required training.
• Pass DOT‑regulated background screening, DOT physical, and hold a valid DOT medical card with more than four months remaining.
• Valid driver’s license and ability to maintain a Driver Qualification File.
• Minimum age 21 years.

Certifications (Required or Obtainable Within 18 Months)

• ASE T8 (PMI)
• ASE 608/609
• 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)

Skills & Abilities

• Understand new information for problem‑solving and decision‑making.
• Lift, bend, climb, stand and walk for extended periods; perform moderately heavy labor.
• Maintain physical endurance over long periods, including repetitive tasks.
• Communicate succinctly and organize information effectively.
• Engage in two‑way communication with individuals and groups.
• Determine appropriate tools and equipment for tasks.
• Accurately judge distances and object proximity.
• Apply logic and reasoning to evaluate alternatives and solutions.

Benefits

• Health, dental and vision insurance from DayOne.
• 401(k) matching after 90 days (up to 6%), plus an additional 2% discretionary contribution.
• Paid Time Off accrual of up to 200 hours based on tenure.
• Tuition assistance/reimbursement.
• Adoption and surrogacy assistance.
• Pet insurance.
• Participation in ERG, diversity groups and paid volunteer hours.
• Employee discounts on vehicle purchases, cellphone plans, ridesharing, insurance and wellness/fitness incentives.
• Weekly pay (Friday) and safe driving/tech efficiency bonuses.
• Reimbursement for safety boots, glasses, extreme weather gear.
• Uniforms provided with laundry service (where available).
• Take service truck home daily – no personal fuel required.
• Tablet and company cell phone supplied.
• Technical training to advance career and a clear career path (over 50% of front‑line managers promoted internally).

Equal Employment Opportunity Statement

Cox is an Equal Employment Opportunity employer – All qualified applicants/employees will receive consideration for employment without regard to that individual’s age, race, color, religion or creed, national origin or ancestry, sex (including pregnancy), sexual orientation, gender, gender identity, physical or mental disability, veteran status, genetic information, citizenship or any other characteristic protected by law. Cox provides reasonable accommodations when requested by a qualified applicant or employee with disability, unless such accommodations would cause an undue hardship. EOE, including disability/vets.