Maintenance Supervisor, Mobile Equipment

00002 Martin Marietta Materials, Inc.; Gabbs (NV); On-site; USD 110,000 - 140,000; Full time

Job summary

Martin Marietta Materials, Inc. at the Gabbs mine site seeks a site maintenance leader for the Lower Shop/Mobile Equipment function.

You will provide front-line leadership to maintenance personnel, promote a strong safety culture, and ensure compliant, efficient operations with MSHA standards. This role spends 60–80% of time in the field, coordinating with operations and maintenance teams to plan work, manage risk, and drive reliability and continuous improvement across safety, productivity, and

Responsibilities

• Serve as a visible and active champion of the Company's safety program, fostering a culture where safety is the first consideration in all activities.
• Lead by example in promoting safe work practices, hazard identification, risk mitigation, incident prevention, and continuous safety improvement.
• Provide direct daily leadership, coaching, and supervision to all Lower Shop/Mobile Equipment personnel.
• Ensure strict compliance with MSHA regulations, company safety policies, procedures, standards, and environmental requirements.
• Maintain accountability for safe execution of maintenance activities, ensuring work is planned, risk-assessed, and performed in accordance with approved procedures.
• Support and actively participate in the Company's Asset Care Strategy and reliability initiatives.
• Execute production and maintenance plans in alignment with approved schedules while prioritizing safe work execution.
• Inspect and evaluate work in progress, identify safety or performance concerns, and implement corrective actions as required.
• Partner closely with operations and maintenance teams to prioritize scheduled work, breakdown response, and critical equipment needs.
• Lead and contribute to short- and long-term strategic planning efforts focused on safety, reliability, productivity, and continuous improvement.
• Maintain a strong field presence through visible leadership, spending approximately 60-80% of working time interacting directly with employees in operational areas.
• Ensure employees are provided with a safe and healthy work environment through effective systems of work, safe operating procedures, training, coaching, and competent supervision.
• Conduct workplace inspections, safety observations, and safety discussions to reinforce expectations and identify opportunities for improvement.
• Promote employee engagement in safety programs, incident investigations, corrective actions, and continuous improvement initiatives.
• Perform other duties as assigned.

Job description

Responsible for the safe, compliant, and efficient operation of the Lower Shop/Mobile Equipment function at the Gabbs mine site. This leadership role is accountable for driving a strong safety culture, maintaining operational excellence, and providing front-line leadership to maintenance personnel. Safety is the highest priority for this position, requiring a demonstrated commitment to injury prevention, hazard recognition, risk management, and continuous improvement of safety performance. As a key member of the Site Maintenance Leadership Team, this role represents and supports team decisions, collaborates across departments, and promotes accountability, engagement, and teamwork throughout the organization.

POSITION SUMMARY: ESSENTIAL DUTIES AND RESPONSIBILITIES

• Serve as a visible and active champion of the Company's safety program, fostering a culture where safety is the first consideration in all activities.
• Lead by example in promoting safe work practices, hazard identification, risk mitigation, incident prevention, and continuous safety improvement.
• Provide direct daily leadership, coaching, and supervision to all Lower Shop/Mobile Equipment personnel.
• Ensure strict compliance with all applicable MSHA regulations, company safety policies, procedures, standards, and environmental requirements.
• Maintain accountability for safe execution of maintenance activities, ensuring work is planned, risk-assessed, and performed in accordance with approved procedures.
• Support and actively participate in the Company's Asset Care Strategy and reliability initiatives.
• Execute production and maintenance plans in alignment with approved schedules while prioritizing safe work execution.
• Inspect and evaluate work in progress, identify safety or performance concerns, and implement corrective actions as required.
• Partner closely with operations and maintenance teams to prioritize scheduled work, breakdown response, and critical equipment needs.
• Lead and contribute to short- and long-term strategic planning efforts focused on safety, reliability, productivity, and continuous improvement.
• Maintain a strong field presence through visible leadership, spending approximately 60-80% of working time interacting directly with employees in operational areas.
• Ensure employees are provided with a safe and healthy work environment through effective systems of work, safe operating procedures, training, coaching, and competent supervision.
• Conduct workplace inspections, safety observations, and safety discussions to reinforce expectations and identify opportunities for improvement.
• Promote employee engagement in safety programs, incident investigations, corrective actions, and continuous improvement initiatives.
• Perform other duties as assigned.

Every member of our ONE Martin Marietta team is driven by our shared values of safety, integrity, excellence, community and stewardship. We are a member of the S&P 500 Index and a leading supplier of aggregates and heavy building materials. Through a network of operations spanning 29 states, Canada and the Bahamas, our teammates supply the foundational resources on which our communities thrive and grow. Our Specialties business provides high-purity magnesia and dolomitic lime products used worldwide in environmental, industrial, agricultural and specialty applications. In a world that's focused on the power of many, we believe in the power of ONE – the magic of bringing together our unique perspectives, experiences and talents to evolve a shared vision and future. Our backgrounds may vary, but our voices come together in support of the same goals. We want to build legacies for ourselves and our loved ones, strengthen our communities and safely and responsibly engage in work we know will make a difference.