Journeyman Diesel Technician

Interstate PowerSystems; Billings (MT); Hybrid; USD 52,000 - 90,000; Full time

Benefits offered by this job

Competitive wages

Uniforms provided

Tuition assistance

Medical, dental, and vision coverage

PTO

401(k) with company match

Disability insurance

Life insurance

HealthiestYou virtual healthcare

PPE reimbursement

Employee discounts

EAP – 24/7 access

Wellness screening

Job summary

Interstate Power Systems in Billings, MT, is seeking a skilled diesel technician to diagnose, repair, and perform preventive maintenance on heavy-duty trucks and equipment. You will work with OEM platforms and diagnostic software to troubleshoot complex systems, read schematics, and ensure quality workmanship.

The role involves welding, fabrication, and accurate documentation, with opportunities for manufacturer training and career development.

Qualifications

• 2-5+ years diesel technician experience required.
• Experience diagnosing and repairing heavy-duty trucks, vocational trucks, construction equipment, mining equipment, or industrial diesel-powered equipment.
• Experience with Detroit Diesel, Cummins, CAT, Allison Transmission, Volvo Penta, MTU, Kenworth, Peterbilt, Freightliner, Western Star, Mack, Volvo, or comparable products preferred.

Responsibilities

• Diagnose and repair complex mechanical, hydraulic, electrical, and electronic systems on heavy-duty trucks, vocational vehicles, and off-highway equipment using advanced diagnostic software, schematics, and technical resources.
• Perform routine preventive maintenance including oil changes, filter replacements, brake inspections, fluid services, chassis lubrication, and equipment inspections.
• Repair or replace major components including diesel engines, transmissions, differentials, aftertreatment systems, hydraulic components, steering systems, and braking systems.
• Diagnose and repair electrical systems, engine controls, sensors, wiring harnesses, and electronic control modules (ECMs).
• Perform minor welding, cutting, and fabrication work necessary to complete equipment repairs and modifications.
• Complete accurate repair orders, maintenance records, warranty documentation, and parts usage reports.
• Communicate repair findings, maintenance recommendations, and equipment status updates with customers and service personnel.
• Follow OSHA, manufacturer, and company safety standards while maintaining a clean and organized work environment.
• Maintain tools, diagnostic equipment, and shop resources to ensure operational readiness and efficiency.

Skills

Diesel engines

Diagnostics software

Preventive maintenance

Troubleshooting

Hydraulic systems

Electrical systems

Reading schematics

Tool proficiency

Education

High school diploma

Diesel technology certification

Tools

OEM diagnostic tools

Shop equipment

Job description

Interstate Power Systems is a leading provider of diesel engine, transmission, and heavy equipment solutions, supporting customers across the transportation, construction, mining, agriculture, and industrial industries. We specialize in industry-leading products including Detroit Diesel, Allison Transmission, MTU, Volvo Penta, CAT, Cummins, and other OEM platforms, servicing everything from heavy-duty trucks and vocational vehicles to construction, mining, and industrial equipment.

Our Billings, Montana location offers a fast-paced, professional shop environment for skilled diesel technicians looking to apply their expertise, expand their technical knowledge, and build a long-term career with a growing organization.

The ideal candidate has proven diesel repair experience and a strong background in diagnostics, repair, and preventive maintenance of commercial trucks, vocational equipment, and diesel-powered machinery. This role offers competitive wages, a consistent schedule, and exceptional opportunities for advancement through manufacturer training and career development programs.

Key Responsibilities

• Diagnose and Repair: Troubleshoot complex mechanical, hydraulic, electrical, and electronic systems on heavy-duty trucks, vocational vehicles, and off-highway equipment using advanced diagnostic software, schematics, and technical resources.
• Preventive Maintenance: Perform routine maintenance including oil changes, filter replacements, brake inspections, fluid services, chassis lubrication, and equipment inspections to maximize uptime and reliability.
• Component Repairs: Repair or replace major components including diesel engines, transmissions, differentials, aftertreatment systems, hydraulic components, steering systems, and braking systems.
• Electrical Diagnostics: Diagnose and repair electrical systems, engine controls, sensors, wiring harnesses, and electronic control modules (ECMs).
• Welding and Fabrication: Perform minor welding, cutting, and fabrication work necessary to complete equipment repairs and modifications.
• Documentation: Complete accurate repair orders, maintenance records, warranty documentation, and parts usage reports.
• Customer Interaction: Communicate repair findings, maintenance recommendations, and equipment status updates with customers and service personnel.
• Safety Compliance: Follow OSHA, manufacturer, and company safety standards while maintaining a clean and organized work environment.
• Tool & Equipment Management: Maintain tools, diagnostic equipment, and shop resources to ensure operational readiness and efficiency.

Qualifications

Education

• High school diploma or equivalent required
• Technical degree or certification in diesel technology, heavy equipment repair, or related field preferred

Experience

• 2-5+ years of hands-on diesel technician experience required
• Experience diagnosing and repairing heavy-duty trucks, vocational trucks, construction equipment, mining equipment, agricultural equipment, or industrial diesel-powered equipment
• Experience with Detroit Diesel, Cummins, CAT, Allison Transmission, Volvo Penta, MTU, Kenworth, Peterbilt, Freightliner, Western Star, Mack, Volvo, or comparable products preferred

Technical Skills

• Strong knowledge of diesel engines, drivetrain systems, hydraulic systems, air brake systems, electrical systems, and electronic controls
• Experience using OEM diagnostic software and computerized diagnostic tools
• Ability to diagnose and repair engine, transmission, fuel, cooling, emissions, electrical, and hydraulic systems
• Ability to read and interpret service manuals, wiring diagrams, schematics, and technical documentation
• Proficiency with hand tools, specialty tools, and shop equipment

Soft Skills

• Strong troubleshooting and problem-solving abilities
• Excellent communication and customer service skills
• Ability to work independently and as part of a team
• Strong attention to detail and commitment to quality workmanship

Certifications (Preferred)

• ASE Medium/Heavy Truck Certifications (T2-T8)
• OEM training from Detroit Diesel, Allison, Cummins, CAT, MTU, Volvo Penta, or equivalent manufacturers
• CDL endorsement or related vocational certifications

Physical Requirements

• Ability to lift 50-75 lbs.
• Ability to work in various shop environments and weather conditions
• Ability to stand, bend, kneel, climb, and work around heavy equipment and commercial vehicles

License

• Valid driver's license required
• CDL strongly preferred

Employee Benefits

• Competitive wages – be paid your worth
• Uniforms provided and professionally cleaned
• Tuition assistance for ongoing education and career growth
• Medical, dental, and vision coverage starting the first of the month following hire
• PTO accrual starting day one
• 401(k) with company match
• Company-paid short-term and long-term disability
• Company-paid life insurance
• HealthiestYou virtual healthcare
• PPE reimbursement (safety glasses and safety boots)
• Employee discounts on products and services
• Employee Assistance Program (EAP) – free 24/7 access
• Paid health and wellness screening

This job description is not designed to cover a comprehensive listing of activities, duties, or responsibilities. Duties and responsibilities may change at any time.

Interstate Companies is an Equal Opportunity Employer.

Military Friendly Hiring.

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