Mobile Diesel Mechanic I Variable $2,500 New Hire Bonus

Location

Chicago, IL

Wage

$20.1 – $30.1/hr

Employment Type

Full-time

Apply for This Position

Posted on October 27, 2026

Job Description

Overview

Cox Fleet, headquartered in Indianapolis, is one of the largest fleet maintenance companies in the country, providing mobile on-site maintenance and repair services for trucks and trailers. They are currently hiring a Mobile Diesel Technician I responsible for performing inspections and light repairs on various vehicles.

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 various types of truck equipment including electrical, brake, cooling systems, starters, alternators, and engines.
  • Independently manage parts inventory and equipment on the company-issued service truck.
  • Maintain and operate the company-issued service vehicle, conducting safety checks and pre-/post-trip inspections.
  • Work with clients to assess their needs and provide assistance or resolve problems.
  • Manage concurrent assigned tasks and prioritize work-related activities.
  • Use hand tools, precision instruments, diesel tools, welding equipment, lifts, and jacks.
  • Document work performed and findings on Repair Orders using a company-issued iOS device.
  • Accurately complete DOT forms and other documentation in a timely manner.
  • Work independently and manage own daily schedule.
  • Maintain a high level of productivity and work within Standard Repair Times.
  • Obtain parts from approved vendors as necessary for repairs.
  • Communicate with management and support team regarding repair estimates and findings.
  • Perform all work in compliance with safety, health, and environmental policies.
  • Maintain the company-issued service truck and conduct daily inspections.

Requirements

  • High School Diploma/GED and up to 2 years’ experience in a related field.
  • Possess and supply a set of hand tools necessary to perform required job duties.
  • OEM training and certifications are preferred.
  • Participate in and complete all company-required training.
  • Must pass a DOT-regulated pre-employment background screening and DOT physical.
  • Must be at least 21 years or older due to interstate operating authority commerce regulations.
  • Valid driver’s license required; must hold a valid state-of-residence driver’s license.
  • CLASS C LICENSE REQUIRED.
  • ASE T8 (PMI) certification required or to be obtained within 18 months.
  • ASE T4 (Brakes) certification preferred.
  • Ability to lift, bend, climb, stand, and walk for long periods.
  • Ability to exert oneself physically over long periods without tiring.
  • Effective two-way communication skills.

Benefits

  • Health Insurance
  • Dental
  • Vision
  • 401k
  • PTO

Additional Information

  • Weekly pay – get paid every Friday.
  • Take the service truck home daily.
  • Tablet and company cellphone provided.
  • Technical training provided to advance your career.

Benefits

Health Insurance
Dental
Vision
401k
PTO

How this job compares in Chicago, IL

Pay in context

At roughly $25/hr, this posting comes in about 34% below the $38/hr median for welding jobs in Chicago, IL, where the middle half runs $31–$50/hr across 43 postings with published pay. Put another way, it pays more than about 19% of the comparable postings we have wage data for. That gap is worth raising directly — in a market this size there is normally room to negotiate toward the median, particularly if you already hold the certifications the posting asks for.

The local market in Chicago, IL

We're tracking 62 other active welding openings in Chicago, IL right now, from 36 different employers. 1 of them was added in the last week. Across Illinois as a whole we're tracking 242 other active welding openings from 145 employers. A metro this active generally means you have real leverage — employers here are competing for the same welders. Browse every welding job in Chicago, or widen the search to Illinois.

The most active employers in Illinois at the moment, by number of open welding reqs, are Gerber Collision & Glass (12), S&C Electric Company (9), and Crash Champions (9). Volume like that usually means either a genuine expansion or a staffing agency working several client sites — worth knowing which before you apply.

Within Illinois, the best-paying metros we track by median hourly rate are Chicago at $38/hr, Elk Grove Village at $34/hr, and Bedford Park at $30/hr. Chicago is among them.

Similar openings near Chicago, IL

Pay figures are medians computed from live postings in the Welding Pros index, not from survey data, and they move as employers post. Mobile Diesel Mechanic I Variable $2,500 New Hire Bonus figures were last recalculated when this page was built.