Diesel Technician

Stewart Transport Inc; Phoenix (AZ); On-site; USD 40,000 - 80,000; Full time

Job summary

An established industry player is seeking dedicated Diesel Technicians to join their fast-growing fleet operation. This role is pivotal in maintaining and repairing trucks, ensuring reliability and maximum uptime. With a structured leveling system, technicians can advance from Apprentice to Lead/Diagnostic Tech, fostering a culture of continuous learning and skill development. The company values technical excellence and offers competitive pay, training, and a supportive team environment. Whether you're starting your career or looking to advance, this opportunity is perfect for those passionate about technical work and growth.

Qualifications

• Experience in truck repair or related field is essential.
• Strong commitment to safety and quality is required.

Responsibilities

• Assist with preventative maintenance and minor repairs.
• Perform fluid changes and tire repairs under supervision.
• Maintain a clean and organized workspace.

Skills

Troubleshooting mechanical issues

Basic computer skills

Commitment to safety

Willingness to learn

Education

Trade school

1-3 years of experience

3+ years of hands-on experience

5+ years of advanced diagnostics

Tools

Diagnostic tools

Basic repair tools

Job description

Schedule: Multiple shifts available, including 6:00 a.m.–3:00 p.m., 10:00 a.m.–6:00 p.m., and 12:00 p.m.–8:00 p.m. Alternative schedules may include Tuesday–Saturday or Sunday–Thursday.

Compensation: Top-tier compensation for best-in-class technicians, with pay reflecting experience, certifications, and skills.

About the Role

The Diesel Technician is a critical role in our fleet operation, responsible for maintaining, diagnosing, and repairing trucks and power units to ensure maximum uptime and reliability. We are committed to technician development and offer a structured leveling system (Apprentice, Journeyman, and Lead/Diagnostic Tech) that provides a clear growth path within our team. This role is ideal for both experienced technicians and those looking to develop their skills, as we offer training and advancement opportunities based on performance, knowledge, and certifications.

Responsibilities

• Assist senior technicians with preventative maintenance, inspections, and minor repairs.
• Perform fluid changes, brakes, batteries, and tire repairs under supervision.
• Learn and use basic diagnostic tools and repair procedures.
• Follow shop safety protocols and procedures.
• Maintain a clean and organized workspace.
• Demonstrate a strong willingness to learn and develop technical skills.

Qualifications

• Apprentice: 1-3 years of experience OR trade school OR a combination of both.
• Journeyman: 3+ years of hands-on experience in truck repair or a related field.
• Lead/Diagnostic: 5+ years of experience with advanced diagnostics, troubleshooting, and repair.
• Ability to troubleshoot and repair mechanical and electrical issues.
• Strong commitment to safety, quality, and efficiency.
• Basic computer skills for diagnostics and record-keeping.
• Ability to lift up to 75 lbs and work in various shop conditions.

Preferred Qualifications

• ASE or OEM certifications (Journeyman and Lead levels).
• Experience with diesel engines, emissions systems, and diagnostic tools.
• CDL or ability to obtain one (preferred for Lead/Diagnostic Technicians).

Why Join Us?

We are a fast-growing fleet operation that values technical excellence, continuous learning, and internal growth. Our technicians play a critical role in fleet reliability, and we provide the tools, training, and support needed to succeed. Whether you are just starting your career or looking to advance, we offer structured growth opportunities, competitive pay, and a team-driven environment.

Ready to Join the Team?

We’re looking for dedicated technicians who want to build a long-term career in a fleet that values skill development and internal growth. Apply today and take the next step in your technician career!

Apply Online