Senior Level 3 Diesel Technician – Truck Diagnostics

HOLT Truck Centers; Irving (TX); On-site; USD 60,000 - 90,000; Full time

Job summary

The Level 3 Diesel Technician at HOLT Truck Centers in Irving, TX is a senior mechanic capable of handling a wide range of mechanical repairs and diagnostics with limited supervision. You will diagnose, repair, and service heavy trucks and trailers, using your extensive knowledge of engines and electrical systems.

Ideal candidates have 4+ years of relevant experience, hold a technical credential, and demonstrate strong problem solving, teamwork, and safety commitment.

Qualifications

• Proven ability to diagnose and repair complex engine issues.
• Experience with heavy trucks and trailers preferred.
• Strong safety mindset and adherence to policies.

Responsibilities

• Diagnose and repair engines and related equipment with minimal supervision.
• Document service reports, parts requisition, and timecards.
• Mentor lower level technicians and uphold company values.

Skills

Engine diagnostics

Troubleshooting

Technical knowledge

Electrical systems

Team collaboration

Safety compliance

Diagnostics tooling

Mentoring

Education

High school diploma or equivalent

Technical school certificate

Tools

Diagnostic tools

Electrical test equipment

Job description

The Level 3 Diesel Technician at HOLT Truck Centers in Irving, TX is a senior mechanic capable of handling a wide range of mechanical repairs and diagnostics with limited supervision. You will diagnose, repair, and service heavy trucks and trailers, using your extensive knowledge of engines and electrical systems.

Ideal candidates have 4+ years of relevant experience, hold a technical credential, and demonstrate strong problem solving, teamwork, and safety commitment.