About The Position

Cox Fleet is hiring a Mobile Diesel Technician Level II to provide mobile maintenance and repair services for light-, medium-, and heavy-duty vehicles. The role performs licensed DOT inspections, preventive maintenance inspections, follow-up repairs, and light mechanical, hydraulic, electrical, and electronic diagnostics. Under the supervision of a Senior Mobile Diesel Technician or higher, the technician may perform more advanced diagnostics and repairs while continuing to develop advanced mechanical and diagnostic skills. The position requires compliance with company policies, safety and environmental requirements, federal regulations, and performance standards. The technician works in a mobile/field environment, manages their own daily schedule, and uses a company-issued service truck, iOS device, and proprietary TRAIT application to document work. The company provides technical training and a dedicated career path. The position requires a Class C CDL, a valid driver’s license, and successful completion of DOT screening and physical requirements.

Requirements

  • High school diploma or GED and 3 years of experience in a related field; alternatively, a different combination may qualify, such as a degree or certification beyond a high school diploma/GED in a related discipline, or 5 years of related experience.
  • Possess and provide the hand tools necessary to perform the job duties.
  • Obtain ASE T8 (PMI) 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 until expiration may be submitted instead of a DOT physical; a physical is required when four months or less remain.
  • Be at least 21 years old due to interstate operating authority commerce regulations.
  • Have a valid driver’s license from the state of residence and be able to obtain and maintain a Driver Qualification File.
  • Hold a Class C CDL.
  • Communicate information succinctly and in an organized manner and engage in effective two-way communication.
  • Determine the tools and equipment needed for a task.
  • Use logic and reasoning to assess alternative solutions and approaches.
  • Judge relative distance between objects.
  • Be able to lift, bend, climb, stand, and walk for long periods and perform moderately heavy labor.
  • Be able to exert oneself physically over extended periods, including performing repetitive tasks.

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, including electrical, brake, and cooling systems; starters and alternators; fan clutches; engine electronics; diesel steering systems; gas and diesel engines; manual and automatic transmissions; clutches; and differentials.
  • Diagnose, adjust, and repair truck equipment, including electrical, brake, and cooling systems; starters and alternators; air-conditioning systems; fan clutches; engine electronics; diesel steering systems; gas and diesel engines; manual and automatic transmissions; clutches; and differentials.
  • 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 proper operation.
  • Identify problems and use sound judgment to evaluate information and alternatives.
  • Independently manage parts inventory and equipment supplied with the company-issued service truck, including periodic reconciliation.
  • Maintain and operate the company-issued service vehicle, conduct safety checks, and complete daily pre- and post-trip inspections.
  • Work effectively with clients and customers to assess needs, provide information or assistance, resolve problems, and meet 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 pictures of work performed, parts used, and findings to repair orders using the company-issued iOS device and TRAIT application.
  • Complete DOT forms and other documentation accurately and promptly.
  • Work independently and manage a daily schedule.
  • Maintain productivity and work within or close to Standard Repair Times.
  • Obtain repair parts from approved local and national vendors as needed.
  • Communicate with management and support teams by email or phone to obtain estimate approvals, 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

  • Weekly pay, with pay every Friday.
  • Safe driving and technician-efficiency bonuses.
  • Safety boots and safety glasses reimbursement.
  • Extreme-weather gear for cold and hot conditions.
  • Uniforms provided, with laundry service where available.
  • Company service truck may be taken home daily.
  • Tablet and company cellphone provided.
  • Technical training to advance career.
  • Dedicated career path; the posting states that over 50% of front-line managers are promoted from within.
  • Health, dental, and vision insurance beginning on the first day of employment.
  • 401(k) matching after 90 days: 100% match up to a 6% contribution, plus an additional 2% discretionary company contribution.
  • Accrual of up to 200 hours (five weeks) of paid time off based on tenure.
  • Tuition assistance or reimbursement.
  • Adoption and surrogacy assistance.
  • Pet insurance.
  • Employee resource groups and diversity groups.
  • Company-paid volunteer hours.
  • Employee discounts on new vehicle purchases, cellphone plans, ridesharing, home and rental insurance, and other offerings.
  • $2,500 new-hire bonus, with 50% paid after 30 days and 50% after 180 days.
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service