Lead Mobile Mechanic — Heavy Equipment & Fleet Expert

Martin Marietta Materials, Inc.; Golden (CO); Presencial; USD 52.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Medical

Dental & Vision

401(k) with company match

Paid time off

Education assistance

Descripción de la vacante

The Master Mobile Mechanic role at Martin Marietta Materials, Inc. oversees the safe, efficient operation of heavy mobile equipment across multiple sites.

You will diagnose complex issues, perform precision repairs, and mentor mechanics while driving fleet performance, ensuring MSHA and company standards are met. Responsibilities include leading complex rebuilds, supervising yellow iron health, and providing on-the-job mentorship to the maintenance team while maintaining accurate records and

Formación

• Education: Vocational training or equivalent experience.
• Advanced technical certifications in diesel mechanics, hydraulics, or welding preferred.
• Work Experience: 4+ years Mobile Equipment Maintenance Experience. CAT maintenance preferred.
• Knowledge, Skills, and Abilities: Welding and metalworking skills; Mechanical analysis; Design tools; Mechanical controls; Troubleshooting; MSHA compliance and regulations; Critical thinking skills; Detail orientated; Time management.

Responsabilidades

• Perform expert-level troubleshooting on diesel engines, hydraulic systems, electrical circuits, and drivetrains for heavy mobile equipment.
• CAT maintenance: utilize OEM-specific software to interpret fault codes, monitor machine health, and perform calibrations.
• Execute major component rebuilds, precision alignments, and fabrication tasks using advanced tools and diagnostic software.
• Interpret complex electrical and hydraulic schematics to repair sophisticated control systems.
• Lead root‑cause analysis for recurring mechanical failures and implement corrective actions to prevent downtime.
• Conduct post-repair testing and calibration to ensure equipment meets manufacturer specifications and operational requirements before returning to production.
• Perform expert‑level welding and structural fabrication to repair cracked frames, buckets, and truck beds.
• Use micrometers, calipers, and dial indicators to verify tolerances on shafts, bearings, and interference fits during rebuilds.
• Enforce MSHA and company safety protocols during all maintenance activities.
• Ensure proper documentation of lockout/tagout procedures and hazard assessments.
• Maintain accurate service records, diagnostic reports, and inventory logs.
• Assist in budgeting for parts, tools, and equipment upgrades.
• Collaborate with procurement teams to source high-quality components and reduce lead times.
• Serve as the technical lead for Mobile Mechanics, providing guidance, training, and performance feedback.
• Coordinate complex repair projects and ensure compliance with safety and quality standards.
• Function as a resource for supervisors and managers in planning maintenance strategies and capital projects.

Conocimientos

Welding and metalworking skills

Mechanical analysis

Design tools

Mechanical controls

Troubleshooting

MSHA compliance

Critical thinking

Detail oriented

Time management

Educación

Vocational training or equivalent experience

Advanced technical certifications in diesel mechanics, hydraulics, or welding

Herramientas

CAT Electronic Technician software

KOMTRAX/Komatsu Care

Descripción del empleo

The Master Mobile Mechanic role at Martin Marietta Materials, Inc. oversees the safe, efficient operation of heavy mobile equipment across multiple sites.

You will diagnose complex issues, perform precision repairs, and mentor mechanics while driving fleet performance, ensuring MSHA and company standards are met. Responsibilities include leading complex rebuilds, supervising yellow iron health, and providing on-the-job mentorship to the maintenance team while maintaining accurate records and