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Lead Mobile Diesel & Trailer Mechanic;

Job in San Antonio, Bexar County, Texas, 78208, USA
Listing for: CAI Cox Automotive Corp Svcs., LLC
Full Time position
Listed on 2026-09-12
Job specializations:
  • Trades / Skilled Labor
    Heavy Equipment Mechanic, Diesel Mechanic
Salary/Wage Range or Industry Benchmark: 35.58 - 53.37 USD Hourly USD 35.58 53.37 HOUR
Job Description & How to Apply Below
Position: Lead Mobile Diesel & Trailer Mechanic (Monday - Friday) (8:30 AM - 3:30 AM)

Company Cox Automotive - USA Job Family Group Vehicle Operations Job Profile Lead Mobile Diesel Master Tech - DOT Management Level Individual Contributor Flexible Work Option Can work remotely but need to live in the specified city, state, or region Travel % Yes 100% of the time Work Shift Day Compensation Hourly base pay rate is $35.58 - $53.37/hour. The hourly base rate may vary within the anticipated range based on factors such as the ultimate location of the position and the selected candidate’s knowledge, skills, and abilities.

Position may be eligible for additional compensation that may include commission (annual, monthly, etc.) and/or an incentive program.

SHIFT

MONDAY TO FRIDAY (8:30 AM - 3:30 PM)

Job Description

Cox Fleet keeps your fleet moving! Headquartered in Indianapolis, Cox Fleet has grown to become one of the largest fleet maintenance companies in the country. Cox Fleet is the leading provider of on-site mobile maintenance and repair services nationwide, offering mobile on-site fleet service for light medium, and heavy-duty trucks and trailers. Cox Fleet also services customers utilizing its 50+ nationwide service centers;

each offering accident repair, painting, refurbishment, and heavy mechanical repair. We are supported by a 24/7 in-house call-center and provide scheduled maintenance services and unscheduled services to fleets anywhere, anytime.

Cox Fleet is currently hiring a Lead Mobile Diesel And Trailer Technician. The Lead Mobile Diesel Technician will be responsible for performing licensed DOT inspections, Preventative Maintenance inspections, light and advanced repairs, advanced mechanical/hydraulic/electrical and electronic diagnostics, and other duties as assigned. Achieve a mastery in majority of technical disciplines. Moderately relied upon for advanced diagnostics and triage of complicated repairs.

Heavily relied upon for customer interaction and communication. Lead on jobsites, and the customer's interaction is heavily influenced by this type of mechanic. Mentor and teach other Technicians in the field in a manner most conducive to their learning style. The Lead Mobile Diesel Technician has multiple interactions with Mobile Technician Manager to make valuable decisions related to the performance and potential of other Technicians within the group.

Performs duties of Mobile Technician Manager in their absence.

DUTIES
  • 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 adjustment and repairs on various types of truck equipment including, but not limited to the following:
    Electrical/Brake/Cooling Systems, Starters/Alternators, Fan clutches, Engine electronics, Diesel steering systems, Engines (gas and diesel), Transmissions (manual and automatic), Clutches, Differentials, etc.
  • Diagnose, adjust, and repair various types of truck equipment including, but not limited to the following:
    Electrical/Brake/Cooling Systems, Starters/Alternators, Air conditioning systems, Fan clutches, Engine electronics, Diesel steering systems, Engines (gas and diesel), Transmissions (manual and automatic), Clutches, Differentials, etc.
  • 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 to ensure that they are working properly.
  • Identify problems, determine accuracy and relevance of information, using sound judgment to generate and evaluate alternatives.
  • Independently manage parts inventory and equipment provided on companyssued service truck and perform periodic reconciliation.
  • Maintain and operate company-issued service…
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