Senior Mobile Diesel Technician – Field Service & Mentoring

Transwest Mobile Truck & Trailer; Austin (TX); On-site; USD 39,000 - 61,000; Full time

Benefits offered by this job

Health insurance

Vision insurance

Dental insurance

401(k)

Life and disability insurance

Paid time off and holidays

Referral bonus program

Job summary

Transwest Mobile Truck & Trailer is seeking an experienced diesel technician to diagnose and repair medium to light-duty diesel trucks in the field across designated service areas. You’ll work with engines, hydraulics, electrical systems, brakes, and drivetrains using OEM manuals and diagnostic tools.

You will lead preventive maintenance and unscheduled repairs with minimal supervision, operate specialized equipment safely, and document findings for customers.

Qualifications

• High school diploma or GED required.
• 5+ years of hands-on experience on medium/light-duty diesel platforms.
• Mastery of diagnostic tooling and OEM/service information.
• Strong troubleshooting under pressure and time management.

Responsibilities

• Troubleshoot and repair medium/light-duty diesel trucks in the field—engines, hydraulics, electrical, brakes, and drivetrains.
• Use advanced diagnostic tools and service manuals to get to root cause quickly.
• Own both preventive maintenance and unscheduled repairs with minimal oversight.
• Operate specialized equipment safely while meeting performance standards.
• Document work thoroughly and communicate findings and recommendations to customers.
• Mentor junior techs and collaborate to elevate team performance.

Skills

Diesel diagnostics

Troubleshooting under pressure

Time management

Tooling proficiency

Education

High school diploma or GED

Tools

Diagnostic tools

OEM service information

Job description

Transwest Mobile Truck & Trailer is seeking an experienced diesel technician to diagnose and repair medium to light-duty diesel trucks in the field across designated service areas. You’ll work with engines, hydraulics, electrical systems, brakes, and drivetrains using OEM manuals and diagnostic tools.

You will lead preventive maintenance and unscheduled repairs with minimal supervision, operate specialized equipment safely, and document findings for customers.