Lead Mobile Mechanic — Heavy Equipment & Diesel Expert

00002 Martin Marietta Materials, Inc.; United States; On-site; USD 52,000 - 90,000; Full time

Job summary

The Master Mobile Mechanic at Martin Marietta Materials, Inc. leads heavy mobile equipment maintenance across multiple sites, diagnosing complex issues, performing precision repairs, and mentoring junior mechanics to improve fleet reliability.

You will supervise rebuilds, enforce MSHA standards, and document maintenance actions while coordinating with procurements for parts and tools to minimize downtime.

Qualifications

• Vocational training or equivalent experience.
• Advanced technical certifications in diesel mechanics, hydraulics, or welding preferred.

Responsibilities

• Troubleshoot diesel engines, hydraulic systems, electrical circuits, and drivetrains on heavy mobile equipment.
• Lead complex rebuilds, precision alignments, and fabrication tasks.
• Perform welding and other metal fabrication (MIG/TIG/Stick).
• Mentor mechanics and supervise maintenance activities.
• Ensure MSHA compliance and accurate documentation.

Skills

Diesel engines

Hydraulics

Electrical

Drivetrains

Troubleshooting

Welding

Metal fabrication

MSHA compliance

Safety awareness

Time management

Education

Vocational training

Advanced diesel/hydraulics/welding certs

Tools

CAT Electronic Technician

KOMTRAX/Komatsu Care

Job description

The Master Mobile Mechanic at Martin Marietta Materials, Inc. leads heavy mobile equipment maintenance across multiple sites, diagnosing complex issues, performing precision repairs, and mentoring junior mechanics to improve fleet reliability.

You will supervise rebuilds, enforce MSHA standards, and document maintenance actions while coordinating with procurements for parts and tools to minimize downtime.