Sr Mobile Diesel Mechanic 5 am - 5 pm

Cox Enterprises•Harrisburg, PA
•$32 - $48•Remote

About The Position

Fleet Services by Cox Automotive is hiring a Senior Mobile Diesel Technician to perform mobile maintenance and repairs on light-, medium-, and heavy-duty vehicles and trailers. The role performs licensed DOT inspections, preventive maintenance inspections, light and advanced repairs, and advanced mechanical, hydraulic, electrical, and electronic diagnostics. The technician is relied upon for advanced diagnostics and triage of complicated repairs by Mobile Diesel Technician I/II employees and is considered the lead at customer jobsites, serving as a consultant on the customer's behalf. The successful candidate follows company policies and achieves performance metrics. The position works independently in a mobile/field environment, manages a daily schedule and concurrent tasks, and maintains a company-issued service truck. Work includes inspecting, testing, diagnosing, adjusting, and repairing vehicle systems; road-testing vehicles; managing parts and equipment; communicating with customers, management, and support teams; and documenting repairs and findings using a company-issued iOS device and the TRAIT application. The role requires compliance with company safety, health, and environmental policies and applicable OSHA, EPA, and DOT regulations. The position involves travel 100% of the time and is a day shift role with a stated schedule of 5 a.m. to 5 p.m.

Requirements

  • High school diploma or GED and five years of experience in a related field; alternatively, a degree or certification beyond high school in a related discipline and three years of related experience, or seven years of related experience.
  • Possess and supply the hand tools necessary to perform the job duties.
  • Obtain ASE T8 (PMI) certification within 18 months.
  • Obtain 608/609 certification within 18 months.
  • Successfully complete and pass a DOT-regulated pre-employment background screening and DOT physical before employment.
  • A current, valid DOT medical card with more than four months remaining before 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, be a safe driver, and be able to obtain and maintain a Driver Qualification File.
  • Be able to lift, bend, climb, stand, and walk for long periods and perform moderately heavy labor.
  • Be able to exert oneself physically for extended periods without tiring, including performing repetitive tasks.
  • Communicate information succinctly and in an organized manner and engage in effective two-way communication with individuals and groups.
  • Determine the type of tools and equipment needed.
  • Accurately judge relative distance between objects and the observer.
  • Use logic and reasoning to evaluate the strengths and weaknesses of alternative solutions, conclusions, or approaches to problems.
  • Understand how new information affects current and future problem-solving and decision-making.

Nice To Haves

  • ASE T2 (Diesel Engines) certification.
  • ASE T3 (Drivetrain) certification.
  • ASE T4 (Brakes) certification.
  • ASE T5 (Suspension) certification.
  • ASE T6 (Electrical and Electronic Systems) certification.
  • ASE T7 (HVAC) certification.
  • ASE A8 (Engine Performance) certification.
  • ASE L1 (Advanced Engine Performance Specialist) certification.
  • ASE L2 (Electronic Diesel Engine Diagnosis Specialist) 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 to truck equipment, including electrical, brake, cooling, engine, steering, transmission, clutch, and differential systems.
  • Diagnose, adjust, and repair truck equipment, including electrical, brake, cooling, air-conditioning, engine, steering, transmission, clutch, and differential systems.
  • Inspect, test, and listen to defective equipment to diagnose malfunctions using test instruments such as handheld computers and pressure gauges.
  • Road-test vehicles to diagnose malfunctions and verify that they are working properly.
  • Identify problems, assess the accuracy and relevance of information, and use sound judgment to evaluate alternatives.
  • Independently manage parts inventory and equipment on the company-issued service truck and periodically reconcile inventory.
  • Maintain and operate the company-issued service vehicle, perform safety checks, and complete daily pre- and post-trip inspections.
  • Listen and respond effectively to clients and customers to assess needs, provide information or assistance, resolve problems, and meet expectations.
  • Manage concurrent assignments 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, including uploading 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 on time.
  • Work independently and manage the daily schedule.
  • Maintain productivity and work within or close to Standard Repair Times.
  • Obtain required repair parts from approved local and national vendors.
  • Communicate with management and support teams by email or phone to obtain repair estimate approvals, purchase order numbers, and discuss repair-order findings.
  • Perform work in compliance with organizational safety, health, and environmental policies and federal regulations, including OSHA, EPA, and DOT requirements.

Benefits

  • Hourly pay of $32.26–$48.41, with possible additional compensation such as commission or incentive pay.
  • 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 to take home daily.
  • Company laptop and cellphone.
  • Technical training and a dedicated career path, with more than 50% of front-line managers 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.
  • Paid time off accrued based on tenure, up to 200 hours (five weeks); employees are eligible for at least 6.67 hours per month.
  • Seven paid holidays, plus potential additional leave for bereavement, voting, jury duty, volunteering, military service, and parental leave.
  • Tuition assistance or reimbursement.
  • Adoption and surrogacy assistance.
  • Pet insurance.
  • Employee resource groups, diversity groups, and company-paid volunteer hours.
  • Employee discounts on new vehicle purchases, cellphone plans, ridesharing, home and rental insurance, and other offerings.
  • Wellness and fitness incentives.
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service