Mobile Diesel & Trailer Mechanic II Mon - Fri 5pm to 1am

Cox Enterprises•Cincinnati, OH
•$29 - $44•Remote

About The Position

Cox Fleet is hiring a Mobile Diesel & Trailer Technician to perform maintenance, inspections, diagnostics, and repairs on light-, medium-, and heavy-duty vehicles and trailers in a mobile/field environment. The role performs licensed DOT inspections, preventive maintenance, follow-up repairs, and light mechanical, hydraulic, electrical, and electronic diagnostics. More advanced diagnostics and repairs may be performed under the supervision of a Senior Mobile Diesel Technician or higher, while the technician continues to develop advanced mechanical and diagnostic skills. The technician works Monday through Friday from 5 p.m. to 1 a.m., travels to customer locations, and works with a high degree of independence while managing a daily schedule, concurrent tasks, parts inventory, and a company-issued service truck. The role requires accurate repair-order and DOT documentation, customer communication, coordination with management and support teams, and compliance with company safety, health, and environmental policies and applicable OSHA, EPA, and DOT regulations.

Requirements

  • High school diploma or GED and three years of experience in a related field; alternatively, a different combination such as a related degree or certification beyond a high school diploma/GED, or five years of related experience.
  • Possess and provide a set of hand tools needed to perform the job duties.
  • Obtain ASE T8 (Preventive Maintenance Inspection) certification within 18 months.
  • Successfully complete and pass a DOT-regulated pre-employment background screening and DOT physical before employment; a current DOT medical card with more than four months remaining may be submitted in lieu of a DOT physical.
  • Be at least 21 years old due to interstate operating authority commerce regulations.
  • Have a safe driving record; a three-year MVR review is required.
  • Hold a valid driver’s license from the state of residence and be able to obtain and maintain a Driver Qualification File.
  • Be able to lift, bend, climb, stand, and walk for extended periods and perform moderately heavy labor.
  • Be able to exert oneself physically over extended periods, including performing repetitive tasks.
  • Communicate information succinctly and in an organized manner and engage in effective two-way communication.
  • Determine the tools and equipment needed for a task.
  • Judge relative distances between objects and the observer.
  • Use logic and reasoning to evaluate alternative solutions, conclusions, or approaches to problems.
  • Understand the implications of new information for current and future problem-solving and decision-making.

Nice To Haves

  • ASE T3 (Drivetrain) certification.
  • ASE T4 (Brakes) certification.
  • ASE T5 (Suspension) certification.
  • ASE T6 (Electrical and Electronic Systems) certification.
  • ASE T7 (HVAC) certification.
  • ASE 608/609 certification.

Responsibilities

  • Perform scheduled preventive maintenance, 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 and systems, including electrical, brake, cooling, starter, alternator, fan clutch, engine electronic, steering, engine, transmission, clutch, and differential systems.
  • Perform minor adjustments and repairs on trailer equipment and systems, including trailer brakes, air lines, auxiliary pumps and engines, liftgates, and brake chambers.
  • Diagnose, adjust, and repair truck equipment and systems, including electrical, brake, cooling, starter, alternator, air conditioning, fan clutch, engine electronic, steering, engine, transmission, clutch, and differential systems.
  • Diagnose, adjust, and repair trailer equipment and systems, including trailer brakes, air lines, auxiliary pumps and engines, liftgates, brake chambers, welding, fabrication, and replacement of panels, body, and framework.
  • Inspect, test, and listen to defective equipment to diagnose malfunctions using instruments such as handheld computers and pressure gauges.
  • Road-test vehicles to diagnose malfunctions and verify they are working properly.
  • Identify problems, assess information, and use sound judgment to evaluate alternatives.
  • Independently manage parts inventory and equipment provided on the company-issued service truck, including periodic reconciliation.
  • Maintain and operate the company-issued service vehicle and conduct safety checks and daily pre- and post-trip inspections.
  • Listen and respond effectively to customer needs, provide information or assistance, resolve problems, and meet customer expectations.
  • Manage concurrent tasks and prioritize work activities and time allocations effectively.
  • Use hand tools, precision instruments, diesel tools, welding equipment, lifts, and jacks.
  • Document work to company standards and upload photographs of work performed, parts used, and findings to repair orders using a company-issued iOS device and the TRAIT application.
  • Complete DOT forms and other documentation accurately and promptly.
  • Work independently and manage a daily schedule while maintaining productivity within or close to Standard Repair Times.
  • Obtain parts from approved local and national vendors as needed.
  • Communicate with management and support teams by email or phone to obtain estimate approvals and purchase-order numbers and discuss repair-order findings.
  • Perform work in compliance with company safety, health, and environmental policies and applicable OSHA, EPA, and DOT regulations.

Benefits

  • Health insurance beginning on the first day of employment.
  • Dental insurance beginning on the first day of employment.
  • Vision insurance beginning on the first day of employment.
  • 401(k) matching after 90 days: 100% match on contributions up to 6%, plus an additional 2% discretionary company contribution.
  • Paid time off accrued based on tenure, up to 200 hours (five weeks).
  • Seven paid holidays per calendar year.
  • Bereavement leave, time off to vote, jury duty leave, volunteer time off, military leave, and parental leave.
  • Tuition assistance or reimbursement.
  • Adoption and surrogacy assistance.
  • Pet insurance.
  • Company-paid volunteer hours.
  • Employee discounts on vehicle purchases, cellphone plans, ridesharing, home and rental insurance, and other offerings.
  • Safety driving and technician efficiency bonuses.
  • Safety boots and safety glasses reimbursement.
  • Extreme-weather gear.
  • Uniforms with laundry service where available.
  • Company-issued service truck that employees may take home daily.
  • Company-provided laptop and cellphone.
  • Technical training and a dedicated career path.
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service