Journeyman Diesel Mechanic

I-State Truck Center•Billings, MT

1d•Onsite

About The Position

I-State Truck Center is a leading provider of heavy-duty truck sales, parts, and service, specializing in Freightliner, Western Star, and Thomas Built Bus products. We proudly support commercial fleets, owner-operators, and businesses across the region. Our Billings, Montana location, offers a fast-paced, professional shop environment for skilled diesel technicians looking to apply their expertise and continue growing their careers. The ideal candidate has proven heavy-duty diesel truck experience and a strong background in diagnostics, repair, and preventive maintenance. This role offers competitive wages, a consistent WednesdaySaturday schedule , and long-term stability within a growing organization.

Requirements

High school diploma or equivalent; technical diploma or certification in diesel or heavy-duty truck repair preferred.
25+ years of hands-on heavy-duty diesel truck experience is required
Experience with brands such as Freightliner, Kenworth, Peterbilt, Volvo, Mack, or similar
Strong knowledge of diesel engines, electrical systems, hydraulics, and ECM diagnostics
Proficiency with diagnostic software and hand/power tools
Ability to read and interpret technical manuals, wiring diagrams, and schematics
Strong problem-solving ability and attention to detail
Effective communication and customer service skills
Valid drivers license required

Nice To Haves

Manufacturer training (Cummins, Detroit Diesel, Paccar) or ASE Heavy-Duty certifications (T2T8)
CDL strongly preferred

Responsibilities

Diagnose and Repair: Troubleshoot complex mechanical, hydraulic, electrical, and electronic systems on heavy-duty diesel trucks using advanced diagnostic tools, schematics, and technical manuals (e.g., Cummins Insite, Detroit Diesel Diagnostic Link).
Preventive Maintenance: Perform routine maintenance including oil changes, filter replacements, brake adjustments, tire inspections, and chassis lubrication to ensure reliability and regulatory compliance.
Component Repairs: Repair or replace critical components such as diesel engines, transmissions, differentials, turbochargers, and braking systems.
Welding and Fabrication: Perform minor welding, cutting, or fabrication work to repair or modify frames and components as needed.
Documentation: Complete accurate service reports, document parts usage, and record maintenance activities for warranty, billing, DOT compliance, and inventory tracking.
Customer Interaction: Communicate with drivers and fleet managers regarding repairs, recommendations, and service outcomes.
Safety Compliance: Follow OSHA, DOT, manufacturer, and company safety guidelines while maintaining a clean and organized work environment.
Tool & Equipment Management: Maintain shop tools, diagnostic equipment, and service areas to ensure operational readiness.

Benefits

Competitive wages be paid your worth
Uniforms provided and professionally cleaned
Tool program available
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
6 paid holidays plus 2 floating holidays
401(k) with company match
Company-paid short-term and long-term disability
Company-paid life insurance
Healthiest You virtual healthcare
PPE reimbursement (safety glasses and safety boots)
Pet insurance
Employee discounts on products and services
Employee Assistance Program (EAP) free 24/7 access
Paid health and wellness screening