Entry Level Diesel Mechanic

Entry-Level Diesel MechanicI-State Truck Center is a leading provider of heavy-duty truck sales, parts, and service in the Midwest, specializing in Freightliner, Western Star, and Detroit Diesel products. With a commitment to excellence and customer satisfaction, we serve commercial fleets, owner-operators, and businesses across Wisconsin and beyond. Our Madison location offers a dynamic environment for skilled tradespeople to grow their careers.We are seeking a motivated Entry-Level Diesel Mechanic to join our Madison service team. This role is ideal for a recent graduate from a diesel technology program or someone with 1–2 years of hands-on experience in diesel repair. You'll work alongside seasoned technicians performing preventive maintenance, diagnostics, and repairs on Class 6–8 trucks and trailers. If you're eager to apply your foundational skills while continuing to learn advanced techniques, this is an excellent opportunity to build a long-term career in heavy-duty diesel service.Key ResponsibilitiesPerform routine inspections, oil changes, and preventive maintenance on diesel engines, transmissions, brakes, and electrical systems.Assist senior technicians with diagnostics using tools such as OBD scanners, multimeters, and air gauges.Disassemble, repair, and reassemble components including fuel systems, aftertreatment systems, and suspension components under supervision.Accurately document all work performed using digital service management software.Maintain a clean, organized, and safe work area in compliance with company policies and OSHA standards.Coordinate with the parts department to identify needed components.Participate in on-the-job training and manufacturer certification programs.QualificationsEducation:High school diploma or equivalent requiredTechnical diploma or certification in automotive, diesel mechanics, or heavy-duty truck repair preferredExperience:1–2 years of experience working on light-duty automotive or heavy-duty diesel trucks (Freightliner, Kenworth, Peterbilt, Volvo, Mack, etc.)Skills:Basic understanding of diesel engine systems, air brakes, and hydraulicsFamiliarity with OEM diagnostic platforms (Cummins Insite, Detroit Diesel DiagnosticLink, etc.)Ability to read service manuals, wiring diagrams, and schematicsStrong attention to detail, problem-solving skills, and safety-first mindsetDependable attendance and team-oriented attitudePhysical Requirements:Ability to lift 50–75 lbsAbility to work in confined spaces and varying shop conditionsPreferred SkillsExperience with Freightliner and Detroit Diesel platformsExposure to diagnostic software such as DiagnosticLink or JaltestBasic welding or fabrication experience a plusEmployee BenefitsCompetitive wages – be paid your worthUniforms provided and cleanedTool program availableTuition assistance for ongoing education and career growthMedical, dental, and vision coverage starting the first of the month following hirePTO accrual starting day one6 paid holidays plus 2 floating holidays401(k) with company matchCompany-paid short-term and long-term disabilityCompany-paid life insuranceHealthiest You virtual healthcarePPE reimbursement (safety glasses and safety boots)Pet insuranceEmployee discounts on products and servicesEmployee Assistance Program (EAP) – free 24/7 accessPaid health and wellness screeningThis job description is not intended to be an exhaustive list of duties and may be modified at any time.Interstate Companies is an Equal Opportunity Employer. All qualified applicants are encouraged to apply.Military Friendly Hiring