Journeyman Diesel Technician

Dobbs Peterbilt; Sumner (WA); On-site; USD 70,000 - 100,000; Full time

Benefits offered by this job

Health Benefits

401(k) with company match

Boot allowance

Paid holidays and vacation

Job summary

Dobbs Peterbilt is seeking a Journeyman Diesel Technician to perform advanced diagnostics and complex repairs on heavy‑duty trucks. This hands‑on role requires independent work, leadership of shop technicians, and adherence to safety standards.

You will diagnose electrical, aftertreatment, and performance systems while guiding apprentices and documenting repairs to ensure quality workmanship.

Qualifications

• 12 years of mechanical experience on heavy‑duty trucks or equipment.
• Advanced diagnostic and troubleshooting skills.
• Ability to work independently and lead technical repairs.
• Required tool set.

Responsibilities

• Diagnose and repair complex mechanical and electrical issues on heavy‑duty trucks.
• Perform major repairs on engines, transmissions, and drivetrains.
• Oversee advanced preventative maintenance and ensure quality and safety standards.
• Mentor apprentices and junior technicians; document repairs accurately.

Skills

12 years experience

Advanced diagnostics

Independent leadership

Required tools

Education

HS Diploma or GED

Tools

Diagnostic tools

Job description

Drive Your Career Forward with Dobbs Truck Group

Expert-level work. Advanced diagnostics. Lead the way in your diesel technician career.

Dobbs Truck Group operates 24 commercial truck dealerships through Dobbs Peterbilt and Western Truck Center across multiple states. We represent leading brands including Peterbilt, Volvo, Mack, Autocar, and Hino, and are committed to building a high-quality team and long-term careers.

Why Join Dobbs Truck Group

• Career Growth: OEM training
• Health Benefits: Medical, Dental, Vision, HSA, Life & Disability coverage
• Pay & Rewards: Competitive pay, performance bonuses, boot allowance
• Future Focus: 401(k) with company match + financial planning resources
• Work-Life Balance: Paid holidays, vacation, and support programs

Additional benefits may be available based on role and eligibility.

About the Role

The Journeyman Diesel Technician is responsible for performing advanced diagnostics, complex repairs, and overseeing high-level service work on heavy-duty trucks and equipment.

This role is designed for highly experienced technicians who operate independently, handle the most complex repairs, and support the development of other technicians within the shop.

What You’ll Do

Advanced Diagnostics & Repairs

• Diagnose and repair complex mechanical and electrical issues
• Perform major repairs on engines, transmissions, and drivetrain systems
• Troubleshoot advanced electrical, aftertreatment, and performance systems

Maintenance & Service

• Oversee and perform advanced preventative maintenance
• Inspect vehicles and ensure work meets quality and safety standards
• Complete high-level repairs across brake, suspension, HVAC, and related systems

Electrical & Technical Systems

• Diagnose and repair advanced electrical systems and network communications
• Utilize diagnostic software and tools to support complex troubleshooting

Shop Leadership & Responsibilities

• Serve as a technical resource for other technicians
• Mentor apprentice and technician-level employees
• Maintain a clean and organized work area
• Accurately document repairs and ensure quality of completed work
• Follow all shop procedures and safety standards

What You Bring

• 12 years of mechanical experience on heavy-duty trucks or equipment
• High school diploma or GED
• Advanced diagnostic and troubleshooting skills
• Ability to work independently and lead technical repairs
• Required tool set

Preferred Experience

• OEM certifications or advanced technical training
• Extensive experience with diagnostic systems and electronic controls
• Experience performing DOT inspections and complex fault diagnosis

Work Environment

This is a hands-on shop role that includes:

• Working with heavy equipment and mechanical systems
• Frequent standing, lifting 50+ pounds, and physical activity
• Exposure to noise, heat, and shop conditions

Career Growth

We invest in our technicians and promote from within:

Journeyman Technician --> Leadership, Specialist, or Management Roles

We are an Equal Opportunity Employer

Dobbs Peterbilt and Western Truck Center are equal opportunity employers that values a broad diversity of talent, knowledge, experience, and expertise. We foster a culture of inclusion that drives employee engagement to deliver superior performance to the communities we serve. Dobbs Peterbilt and Western Truck Parts do not discriminate in hiring or employment on the basis of race, color, religious creed, national origin, sex, ancestry, pregnancy, genetic information, gender identity, sexual orientation, or marital status; or on the basis of age against persons whose age is 40 and over, or on the basis of physical or mental disability; or to disabled veterans or to Vietnam veterans. We are proud to be an affirmative action employer and encourage minorities, women, individuals with disabilities, and veterans to join our team.