Diesel Technician - Fleet & Heavy Machinery Repair

County-Materials-Family-of-Companies; Roberts (WI); On-site; USD 52,000 - 76,000; Full time

Job summary

County Materials in Roberts, WI is seeking a Mechanical Technician with diesel engines and heavy-duty equipment experience to maintain, troubleshoot, and repair trucks and large machinery. This role ensures safe operation and DOT compliance.

The technician performs mechanical, hydraulic, pneumatic, and engine diagnostics, completes preventive maintenance and DOT inspections, and responds to emergencies to minimize downtime.

Qualifications

• High School Diploma or Equivalent.
• Minimum of 2 years’ experience in diesel mechanics.
• Pro‑active, multi‑tasked, self‑motivated team player and positive attitude.
• Strong hydraulic, mechanical, welding experience
• A valid driver’s license and good driving record is required.
• CDL preferred

Responsibilities

• Troubleshoot, diagnose, and repair diesel engines, trucks, and heavy-duty equipment
• Perform mechanical, hydraulic, and pneumatic repairs as needed
• Complete preventative maintenance (PMs) and DOT inspections
• Respond to emergency and unscheduled equipment breakdowns to reduce downtime
• Read and interpret technical manuals, schematics, and service documentation
• Operate, maintain, and inspect shop tools and equipment
• Follow all safety procedures, regulatory requirements, and quality standards
• Accurately document repairs, inspections, and maintenance activities
• Support team operations and assist with special projects or tasks
• Use hand and power tools, material handling equipment, welders, and cutting torches
• Maintain a clean, organized, and safe work area
• Perform other related duties as assigned

Skills

Diesel Engine Knowledge

Diagnostics & Troubleshooting

Preventative Maintenance

Work Planning & Documentation

Tool Usage

Welding

Communication

Attention to Detail

Education

High School Diploma or Equivalent

Job description

County Materials in Roberts, WI is seeking a Mechanical Technician with diesel engines and heavy-duty equipment experience to maintain, troubleshoot, and repair trucks and large machinery. This role ensures safe operation and DOT compliance.

The technician performs mechanical, hydraulic, pneumatic, and engine diagnostics, completes preventive maintenance and DOT inspections, and responds to emergencies to minimize downtime.