Senior Mobile Mechanic & Fleet Technical Lead

Martin Marietta; Golden (CO); On-site; USD 52,000 - 90,000; Full time

Benefits offered by this job

Medical Coverage

401(k) with Company Match

Paid Holidays and Vacation

Job summary

Martin Marietta seeks a Master Mobile Mechanic to lead maintenance on heavy mobile equipment across multiple sites. You will diagnose complex issues, perform precision repairs, and mentor mechanics while driving fleet performance and safety.

You will supervise complex rebuilds, manage equipment health, and ensure adherence to MSHA and company standards, acting as a technical lead for the mobile maintenance team.

Qualifications

• Vocational training or equivalent experience in diesel mechanics or welding.
• Advanced technical certifications preferred in diesel mechanics, hydraulics, or welding.
• 4+ years mobile equipment maintenance experience.

Responsibilities

• Perform expert-level troubleshooting on diesel engines, hydraulic systems, electrical circuits, and drivetrains for heavy mobile equipment.
• Lead rebuilds and precision alignments; mentor maintenance team.
• Ensure 100% MSHA compliance and company safety protocols.

Skills

Welding

Troubleshooting

Mechanical analysis

Critical thinking

Time management

MSHA compliance

Detail oriented

Education

Vocational training or equivalent experience

Advanced technical certifications in diesel mechanics, hydraulics, or welding

Tools

CAT Electronic Technician (ET)

Komatsu KOMTRAX/Komatsu Care

Job description

Martin Marietta seeks a Master Mobile Mechanic to lead maintenance on heavy mobile equipment across multiple sites. You will diagnose complex issues, perform precision repairs, and mentor mechanics while driving fleet performance and safety.

You will supervise complex rebuilds, manage equipment health, and ensure adherence to MSHA and company standards, acting as a technical lead for the mobile maintenance team.