Lead Diesel Mechanic: Truck & Trailer Diagnostics

20 Saia Motor Freight Line LLC; Garland (TX); On-site; USD 45,000 - 51,000; Full time

Job summary

Saia LTL Freight is seeking a maintenance supervisor to oversee truck and trailer upkeep, guiding mechanics and ensuring safe, compliant repairs. You will lead diagnostic efforts, review repair procedures, and maintain detailed records of all service activities across our fleet.

Ideal candidates have diesel mechanic experience and some supervisory background, with a strong command of English. This full-time role offers direct involvement with preventive maintenance and safety-focused operations.

Qualifications

• Minimum 18 years old and authorized to work in the United States.
• High school diploma or GED required.
• Must provide and maintain personal maintenance tools.
• Read, write, communicate in English to perform job tasks.

Responsibilities

• Supervises cross-functional partners on mechanical work on trucks and trailers.
• Instructs mechanics on proper diagnosis of failures and correct repair practices.
• Maintains detailed records of all maintenance and repair activities.
• Performs inspections, services, and repairs on trailers.
• Uses specialized equipment to perform inspections, repairs, and maintenance work.
• Diagnoses and troubleshoots mechanical issues on trailers and dollies.
• Tracks and maintains service information on all mechanic-related activities.
• Prepares reports on maintenance activities and vehicle and equipment status.

Skills

Diesel mechanic

Supervisory experience

Education

High school diploma or GED

Tools

Diagnostic software

Job description

Saia LTL Freight is seeking a maintenance supervisor to oversee truck and trailer upkeep, guiding mechanics and ensuring safe, compliant repairs. You will lead diagnostic efforts, review repair procedures, and maintain detailed records of all service activities across our fleet.

Ideal candidates have diesel mechanic experience and some supervisory background, with a strong command of English. This full-time role offers direct involvement with preventive maintenance and safety-focused operations.