Quarry Maintenance Supervisor: Lead Safety & Uptime

00002 Martin Marietta Materials, Inc.; United States; On-site; USD 93,000 - 125,000; Full time

Benefits offered by this job

Medical, dental, vision coverage

401(k) with company match

Paid time off

Tuition assistance

Employee discount program

Job summary

Martin Marietta Materials, Inc. is seeking an experienced Maintenance Supervisor for our Walstrum Quarry in Idaho Springs, CO.

You will lead the maintenance team, direct asset care for crushers, conveyors, screens, pumps, and various mobile assets, and drive uptime and efficiency while embedding a Safety First culture. You will develop maintenance plans, mentor staff, manage backlogs, and coordinate with Plant leadership to meet production goals and KPI targets.

Qualifications

• 4+ years in Heavy Industrial Maintenance (Aggregates, Mining, or Construction preferred).
• MSHA regulations and compliance awareness.
• Strong problem-solving and communication skills.

Responsibilities

• Conduct daily MSHA pre-shift inspections of equipment and work areas to identify hazards.
• Develop and execute daily and weekly maintenance schedules with the Plant Manager.
• Oversee repair and optimization of stationary and mobile equipment.
• Mentor technicians on safe maintenance practices including LOTOTO.
• Plan and staff maintenance crew for a 4MTPY hard rock quarry.
• Coordinate repairs with site management and ensure equipment readiness.
• Monitor operations to maintain production and QC standards.
• Take corrective action when deficiencies arise.
• Monitor and report on safety and production KPIs.
• Ensure compliance with safety and environmental regulations.

Skills

Production processes

Quality control

MSHA regulations

Critical thinking

Problem solving

EPA resource mgmt

Effective communicator

Education

High school diploma / GED / relevant experience

Job description

Martin Marietta Materials, Inc. is seeking an experienced Maintenance Supervisor for our Walstrum Quarry in Idaho Springs, CO.

You will lead the maintenance team, direct asset care for crushers, conveyors, screens, pumps, and various mobile assets, and drive uptime and efficiency while embedding a Safety First culture. You will develop maintenance plans, mentor staff, manage backlogs, and coordinate with Plant leadership to meet production goals and KPI targets.