Mobile Diesel and Trailer Mechanic II
Listed on 2026-03-01
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Trades / Skilled Labor
Diesel Mechanic, Heavy Equipment Mechanic
Overview
Position: Mobile Diesel and Trailer Mechanic II $5,000 New Hire Bonus
Location: San Diego, CA
Job : 4985
# of Openings: 4
NOTE: If you have any questions or to connect with a recruiter while your application is being reviewed, please Text DFS2 to .
New Hire Bonus: $5,000. 50% after 30 days and 50% after 180 days. Variable shift – afternoon/weekend shift support.
Cox Fleet – A Cox Automotive Company keeps your fleet moving!
Cox Fleet, headquartered in Indianapolis, by Cox Automotive, has grown to be 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. We also service customers at 50+ nationwide service centers with services including accident repair, painting, refurbishment, and heavy mechanical repair.
We are supported by a 24/7 in-house call-center and provide scheduled maintenance and unscheduled services to fleets anywhere, anytime.
Role: Cox Fleet by Cox Automotive is currently hiring a Mobile Diesel and Trailer Technician Level II
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The Mobile Diesel Technician Level II will be responsible for performing licensed DOT inspections, preventative maintenance inspections, light and follow-up repairs, light mechanical/hydraulic/electrical and electronic diagnostics, and other duties as assigned. The technician can perform more advanced diagnostics and repairs under the supervision of a Sr Mobile Diesel Technician or higher. The Diesel Technician II continues to learn additional advanced mechanical skills and diagnostic techniques and complies with all company policies and performance metrics.
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 adjustments and repairs on various types of truck equipment including electrical, brake, cooling systems, starers/alternators, fan clutches, engine electronics, diesel steering systems, engines (gas and diesel), transmissions, clutches, differentials, etc.
- Diagnose, adjust, and repair various types of truck equipment including electrical, brake, cooling systems, starers/alternators, air conditioning systems, engine electronics, diesel steering systems, engines (gas and diesel), transmissions, 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 ensure proper operation.
- Identify problems, determine accuracy and relevance of information, and use sound judgment to generate and evaluate alternatives.
- Independently manage parts inventory and equipment on the company-issued service truck and perform periodic reconciliation.
- Maintain and operate the company-issued service vehicle, conduct safety checks, and perform pre-/post-trip inspections.
- Work with clients to assess needs, provide information or assistance, resolve problems, or satisfy expectations.
- Manage concurrent tasks with effective prioritization of work and time allocations.
- Use hand tools, precision instruments, Diesel tools, welding equipment, lifts and jacks.
- Document work per company standards and upload pictures of work performed, parts used, and findings on Repair Orders using the TRAIT application on an iOS device.
- Accurately complete DOT forms and other documentation in a timely fashion.
- Work independently and manage daily schedule; maintain productivity and work within or close to standard repair times.
- Obtain parts from approved local and national vendors as needed.
- Communicate with management and support teams via email or phone to obtain approvals on repair estimates, retrieve purchase order numbers, and discuss RO findings.
- Perform all work in compliance with safety, health, and environmental policies and regulations (OSHA, EPA, DOT).
- Maintain the company-issued service truck and conduct safety checks and daily pre-/post-trip inspections.
Qualifications: High School Diploma/GED and 3…
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