Lead Mobile Diesel Mechanic

Job Title

Lead Mobile Diesel Technician – DOT Management Level, Individual Contributor (Cox Automotive – Cox Fleet)

The Lead Mobile Diesel Technician performs licensed DOT inspections, preventive maintenance, repairs, and advanced diagnostics on light, medium, and heavy‑duty vehicles in a mobile/field environment. The role includes leadership, mentorship, and client interaction, supporting the overall service team and ensuring compliance with safety, health, and federal regulations.

• Perform scheduled preventive maintenance (PM) and DOT inspections; follow up on repairs for all vehicle classes.
• Diagnose, adjust, and repair electrical, brake, cooling, engine, transmission, clutch, differential, hydraulic, and electronic systems.
• Conduct road tests, use handheld computers, pressure gauges, and other diagnostic equipment to identify malfunctions.
• Maintain inventory of parts and equipment; perform periodic reconciliation.
• Operate company‑issued service truck; conduct safety checks, pre‑ and post‑trip inspections.
• Document work on Repair Orders via company iOS device and TRAIT application; upload pictures and provide accurate DOT forms.
• Lead jobsites, providing customer interaction and communication; mentor and train Mobile Technicians I/II/Sr.
• Assist Mobile Tech Manager with quality control inspections and perform managerial duties when needed.
• Manage concurrent tasks, prioritize work, and maintain high productivity within standard repair times.

• High School Diploma or GED with 7 years of experience (alternative: any degree/certification beyond HS with 5 years of experience, or 9 years in related field).
• Valid driver’s license and current state‑of‑residence license; maintain Driver Qualification File.
• At least 21 years of age.
• Successful completion of DOT‑regulated background screening and DOT physical; current DOT medical card with more than four months validity acceptable.

• ASE T8 (PMI)
• ASE C1 (Service Consultant)
• ASE 608/609 (Emission Control)

• ASE T2, T3, T4, T5, T6, T7, A8, L1, L2

Demonstrates sound judgment and problem‑solving skills; lifts, bends, climbs, and performs repetitive tasks for prolonged periods; excellent communication and two‑way interaction with clients and teammates; accurately determines tool selection and operational distance; uses logic and reasoning to evaluate solutions.

Health, dental, and vision insurance available from day one; 401(k) matching after 90 days; paid time off accrual; tuition assistance; adoption/surrogacy assistance; pet insurance; multiple employee resource groups; company‑paid volunteer hours; discounts on vehicles, cell phones, ride sharing, home insurance, and wellness incentives.

Cox is an Equal Employment Opportunity employer – All qualified applicants/employees will receive consideration for employment without regard to 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, ethnicity, 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.

Applicants must currently be authorized to work in the United States for any employer without current or future sponsorship. No OPT, CPT, STEM/OPT or visa sponsorship now or in future.