Equipment Operator I

00002 Martin Marietta Materials, Inc.; Ohio; On-site; USD 34,000 - 48,000; Full time

Job summary

Martin Marietta Materials, Inc. is seeking an Equipment Operator II responsible for safely operating heavy equipment to move materials from the quarry pit to the plant, while maintaining high production uptime and safety standards.

The role requires 1+ year of relevant experience in aggregate, construction, or mining environments and a strong mechanical aptitude. Training others on safe operation techniques and participating in PMs and inspections are part of the responsibilities.

Qualifications

• Education: High school diploma, GED, or relevant experience (Technical training preferred).
• 1+ years of experience operating heavy equipment in aggregates/mining environments.
• Mechanical aptitude and ability to troubleshoot equipment safely and efficiently.
• Strong safety focus with MSHA compliance and good communication skills.

Responsibilities

• Safely operate a variety of heavy equipment to transport raw materials from the pit to the plant at maximum loading capacity.
• Adjust equipment settings and SOPs to maximize throughput and minimize cycle times.
• Coordinate equipment positioning and sequencing to support site supervisors in optimizing production flows.
• Ensure all cargo is properly loaded according to safety requirements, preventing spills and maintaining vehicle stability.
• Strictly adhere to MSHA safety rules and Guardian Angel programs.
• Maintain haul roads, berms, and loading areas to meet safety standards and site specifications.
• Conduct daily vehicle inspections and perform daily PMs including lubrication and fluid checks.
• Assist maintenance with plant repairs and equipment shutdowns as needed.

Skills

Heavy equipment operation

Mechanical troubleshooting

Safety compliance

Effective communication

Education

High school diploma or GED

Technical training or vocational certification

Job description

JOB SUMMARY The Equipment Operator II is responsible for the safe and efficient operation of multiple types of heavy mobile equipment (including, but not limited to, loaders, excavators, and dozers) to facilitate the extraction, transportation, and processing of raw materials. This role goes beyond simple operation; the Operator II is a cross-functional team member who maintains site infrastructure (roads and berms), performs critical preventative maintenance, and troubleshoots equipment malfunctions to maximize production uptime. Operating under moderate supervision, this individual is expected to demonstrate advanced proficiency in material handling, ensure strict compliance with MSHA regulations, and assist in the training and mentoring Operators to maintain a high-performance, safety-first culture.

KEY DUTIES AND RESPONSIBILITIES

• Safely operate a variety of heavy equipment to transport raw materials from the pit to the plant at maximum loading capacity.
• Adjust equipment settings and operational techniques using Standard Operating Procedures (SOPs) to maximize throughput and minimize cycle times.
• Coordinate equipment positioning and sequencing to support site supervisors in optimizing production flows.
• Ensure all cargo is properly loaded according to safety requirements, preventing spills and maintaining vehicle stability.
• Strictly adhere to all MSHA safety rules, as well as Martin Marietta’s Guardian Angel programs.
• Maintain the integrity of the quarry by ensuring haul roads, berms, and loading areas meet safety standards and site specifications.
• Facilitate and maintain safe traffic flow throughout the site, communicating via CB radio or hand signals to coordinate movement with co-workers and customer trucks.
• Proactively identify and report site hazards, such as unstable highwalls, loose material, or electrical risks.
• Conduct thorough daily inspections of vehicle systems, hydraulic lines, tires, and safety accessories, documenting findings in official logs.
• Perform daily preventative maintenance (PMs), including greasing moving parts and checking oil, diesel, and coolant levels.
• Use mechanical aptitude to diagnose equipment malfunctions and perform minor repairs; promptly report significant mechanical failures to the maintenance shop.
• Assist the maintenance team with plant repairs and clean-up, including the replacement of idlers, pulleys, and bearings during shutdowns.
• Aid in the training of co-workers and junior operators on safe operation techniques, site protocols, and equipment maintenance.
• Provide operational support across various areas of the plant.
• Maintain professional and effective communication with Plant Operators, Supervisors, and external customers to ensure a cohesive work environment.

QUALIFICATIONS

Education High school diploma, GED, or relevant experience Technical training and vocational certification is preferred

Work Experience 1+ years of relevant experience operating Heavy Equipment in an Aggregate, Construction, or Mining environment.

Knowledge, Skills, and Abilities Mechanical aptitude Troubleshooting Critical thinking Safety focused MSHA compliance and regulations Regulatory compliance Effective communication (written and spoken) Time management

ADDITIONAL DETAILS

• Physical Requirements Must be able to lift and carry up to 50 lbs. for plant maintenance and equipment servicing. Required to bend, stoop, climb, and reach. You must be able to maintain three points of contact when climbing on/off machinery or on ladders. Strong hand-eye-foot coordination is essential for operating hand/foot controls. You must have good depth perception with or without seeing aid for distances up to 150 feet.
• Working Conditions All duties require outside assignments and require periods of work in all weather conditions, cold, wet, dry and dusty. Must be able to work in areas where noise levels are up to 85 dbs.

DISCLAIMERS

In addition to the primary responsibilities outlined, the successful candidate may be expected to take on other tasks and assignments as required, including but not limited to duties outside the typical scope of the role to support overall team operations and organizational needs. Flexibility and adaptability to evolving job demands are essential. 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.