Diesel Shop Foreman

Wisconsin Country Staffing & Recruiting | Full time

Fond Du Lac, United States | Posted on 01/07/2026

Job Type: Full-Time, Direct Hire, 1st and 2nd Shifts Available

We are seeking an experienced Diesel Technician Foreman to lead our shop team and oversee day‑to‑day operations. This role requires both hands‑on mechanical expertise and leadership skills to ensure repairs and maintenance are completed accurately, efficiently, and safely. The ideal candidate will be a strong communicator with proven experience supervising technicians while maintaining high standards of quality and productivity.

• Supervise, mentor, and train diesel technicians and shop staff.
• Assign work orders, monitor progress, and ensure timely completion of repairs.
• Perform hands‑on diagnostics, maintenance, and repair on diesel engines, transmissions, and related systems.
• Ensure compliance with safety standards, shop procedures, and company policies.
• Maintain accurate records of repairs, inspections, and maintenance logs.
• Communicate with service managers and customers regarding repair status, timelines, and recommendations.
• Monitor parts usage and assist in inventory management.
• Uphold quality assurance standards and ensure customer satisfaction.

• 5+ years of diesel technician experience; previous supervisory or lead tech role strongly preferred.
• Strong knowledge of diesel engines, electrical systems, hydraulics, and preventative maintenance.
• Ability to read and interpret technical manuals, schematics, and diagnostic tools.
• Excellent leadership, problem‑solving, and communication skills.
• Valid driver's license (CDL preferred, not always required).
• High school diploma or equivalent; technical certifications a plus (ASE, OEM, etc.).

• Experience as a diesel mechanic or technician working on diesel engines and related systems.
• Experience with heavy‑duty trucks, buses, agricultural, or construction equipment is a plus.
• Strong knowledge of diesel engines, fuel systems, and mechanical components.
• Proficiency with diagnostic software and tools such as multimeters, engine analyzers, and pressure gauges.
• Familiarity with hydraulic, electrical, and air brake systems commonly found in diesel vehicles.
• Excellent troubleshooting and diagnostic skills to quickly identify and resolve engine or mechanical issues.
• Ability to work independently and efficiently manage time and resources to complete tasks.
• Strong verbal and written communication skills to explain repairs and maintenance needs clearly to customers and team members.
• Ability to maintain accurate service records and documentation.
• Ability to lift heavy parts and equipment (up to 50 lbs), stand for extended periods, and work in various physical positions (bending, kneeling, crawling).
• Willingness to work in all weather conditions, indoors and outdoors, as needed for field service calls.

• High school diploma or equivalent required.
• Completion of a formal diesel technician training program or apprenticeship preferred.
• ASE (Automotive Service Excellence) certification in Diesel Engines or related fields is a plus.
• CDL (Commercial Driver's License) may be required for field service.