Mobile Diesel Technician

Lead Technician / Journeyman – Engine Builder & Diagnostic Specialist Full-Time | Journeyman Level Engine building and complete engine replacements (diesel, gas, and propane engines) Advanced diagnostics on drivetrain, electrical, emissions, and hydraulics MC-331 propane bobtail inspection, repair, and compliance work Heavy-duty truck, crane, trailer, and industrial equipment service Fleet maintenance for commercial and municipal operators Position Overview The Lead Technician is the primary in-shop expert responsible for: Building, assembling, and installing engines (diesel, gasoline, and propane) Performing advanced-level diagnostics on electrical, ECM, emissions, fuel, DEF, and driveline systems Overseeing shop workflow and guiding mid-level technicians Diagnosing hydraulic systems, PTOs, pumps, cranes, and auxiliary equipment Conducting DOT/FMCSA-related inspections and propane-system repairs (training provided) Maintaining strict safety and repair quality standards Working directly with management on repair plans, estimates, and timelines Key Responsibilities Complete engine tear-downs, rebuilds, and replacements Perform high-level troubleshooting with OEM software (DTC analysis, live data, bidirectional tests) Diagnose complex electrical faults, communication issues, and sensor failures Diagnose and repair aftertreatment systems (DPF, SCR, EGR) Oversee major chassis, suspension, axle, and brake repairs Repair and maintain MC-331 propane systems, pumps, and valves (training provided) Quality-control final inspections on all major repairs Mentor apprentice and mid-level technicians to improve shop output Required Qualifications Journeyman-level technician (or equivalent proven experience) 5–10+ years as a professional heavy-duty or advanced automotive technician Strong engine-building and diagnostic background (diesel, gas, and propane) Must have a full set of basic handheld tools required for heavy-duty repair Ability to lead others while maintaining high repair standards Ability to read schematics, wiring diagrams, and service manuals Strong problem-solving and communication skills Clean driving record & valid driver’s license Preferred Experience Experience with propane trucks, MC-331 cargo tanks, or LPG systems OEM diagnostic systems (Cummins INSITE, CAT ET, Navistar, GM, Hino DX2, Allison DOC, etc.) Welding / fabrication ability Crane, PTO, hydraulic system service DOT / PHMSA inspection experience What We Offer Competitive pay (DOE) Performance bonuses Excellent insurance: 100% employer-paid for the employee, and up to 100% employer-paid for the employee's family depending on the plan Extensive overtime opportunities during the busy season (October through April) Paid vacation Paid holidays Standard 4-day work week (4x10 schedule); shift days vary based on assigned team Professional training (propane systems, MC-331, OSHA, PHMSA) Stable, long-term employment in a growing multi-division company Job Type: Full-time Pay: $35.00 - $55.00 per hour Benefits: Health insurance Paid time off Relocation assistance Work Location: On the road

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