Mobile Diesel Technician — Travel & Fleet Maintenance

20 Saia Motor Freight Line LLC; Oklahoma City (OK); On-site; USD 50,000 - 56,000; Full time

Job summary

Saia is seeking a diesel mechanic for mobile maintenance, performing preventive maintenance and repairs on tractors, trailers, and fleet equipment while traveling between terminals in a mobile service van.

You will diagnose issues, respond to road calls, and document repairs to ensure safety and compliance with regulations. The role requires strong diesel knowledge and the ability to work independently in varied environments.

Qualifications

• Must be at least 18 years old.
• Authorized to work in the United States.
• Must provide and maintain personal maintenance tools.
• Must maintain a valid driver’s license and a motor vehicle record that meets company standards for operating a company vehicle.
• Read, write, communicate and comprehend English to perform job duties.
• 5+ years of diesel mechanic experience, including mobile maintenance.
• Strong working knowledge of diesel engines, brakes, electrical, and hydraulic systems.
• Proficiency in diagnostic software.
• Ability to work independently, troubleshoot complex issues, and adapt to varied environments.

Responsibilities

• Performs preventive maintenance and repairs on tractors, trailers, and related fleet equipment in compliance with company standards and DOT regulations.
• Travels to assigned terminals and remote locations to diagnose issues and complete repairs using a mobile service van.
• Responds to road calls and emergency service requests as needed to minimize equipment downtime.
• Conducts thorough inspections to identify potential safety concerns and ensures equipment remains compliant with federal, state, and local requirements.
• Completes required documentation for maintenance activities, parts usage, and repair outcomes in the company’s maintenance system.
• Collaborates with terminal leadership, fleet management, and drivers to prioritize work and schedule service efficiently.
• Ensures proper inventory management and security of tools, parts, and equipment assigned to the mobile unit.
• Maintains a clean, safe, and organized mobile workspace while following all safety protocols and company policies.

Skills

Diesel mechanic experience

Mobile maintenance

Independent work

Troubleshooting

English communication

Education

High school diploma or GED

Tools

Diagnostic software

Job description

Saia is seeking a diesel mechanic for mobile maintenance, performing preventive maintenance and repairs on tractors, trailers, and fleet equipment while traveling between terminals in a mobile service van.

You will diagnose issues, respond to road calls, and document repairs to ensure safety and compliance with regulations. The role requires strong diesel knowledge and the ability to work independently in varied environments.