Senior Plant Maintenance

About the role

The Senior Plant Maintenance Specialist is responsible for inspecting, maintaining, troubleshooting, repairing, and installing a wide range of aggregate plant equipment to ensure safe and efficient operations. This includes stationary and mechanical systems such as conveyors, shakers, pumps, and gearboxes, as well as general facility maintenance involving electrical, plumbing, and basic structural systems. The role performs preventive maintenance, equipment diagnostics, and fabrication or welding work as needed to minimize downtime and improve reliability. The Specialist actively supports safety initiatives, maintains detailed maintenance records, and partners with supervisors and vendors to ensure all repairs and upgrades meet company and regulatory standards.

Responsibilities

• Perform evaluations of plant equipment seeking opportunities to improve availability, capability, and yield
• Study trends to identify systemic plant maintenance needs
• Actively participate in broad-scale plant maintenance initiatives
• Work with vendors to procure plant maintenance support
• Develop reports on plant capacity and yield and related plant maintenance activities
• Maintain appropriate plant maintenance records information and data in respective technology systems
• Conduct MSHA pre-shift safety inspections of equipment and work areas
• Prioritize safety first, followed by quality and production
• Maximize performance of stationary equipment by performing timely repairs and completing preventive maintenance according to the Maintenance Module
• Check, repair, and replace pumps, conveyors, gearboxes, and screens to minimize downtime
• Operate cranes, man-lifts, welding and cutting tools, and other specialty equipment as needed
• Perform fabrication, erection, and repair of processing and mobile equipment
• Ensure maintenance backlog is reviewed and prioritized with the Supervisor and/or Plant Manager
• Complete all required paperwork to maintain equipment in compliance with Martin Marietta standards
• Train and coach other employees on maintenance best practices
• Take on other tasks and assignments as required, including 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

Qualifications

• Education: High School Diploma, GED, or equivalent experience acceptable; technical training or coursework in maintenance or mechanical systems preferred
• Work Experience: 5+ years related experience in heavy-duty maintenance or related field, preferably in the aggregates industry

Knowledge, Skills And Abilities

• Critical thinking
• Problem-solving
• Engineering standards
• Safety focus (MSHA/OSHA)
• Regulatory compliance
• Project Management
• Continuous improvement
• Effective oral and written communication

Pay

The hiring range for this position is $30–$40 per hour exclusive of benefits or bonuses (discretionary and non-discretionary). The offered base compensation will be determined based on factors such as geographic location, business need, market conditions, proficiencies, skills, education, and experience. Additionally, at Martin Marietta we place a high value on internal pay equity and will consider the compensation for those in similarly situated roles and direct team members. The hiring range for this role represents the base compensation we expect to pay for the position at time of hire and does not represent the total possible base pay of the position.

Benefits

• Medical, dental and vision coverage; prescription drug coverage
• Health savings accounts; flexible spending accounts
• Life, AD&D and disability insurance
• 401(k) with a company match and an employer-funded defined benefit pension plan
• Paid time off and paid holidays
• Education/tuition assistance
• Employee discount program
• Adoption assistance
• Wellness programs
• Part-time employees are eligible to participate in the 401(k) plan and receive a company match; they may also start accruing service for the pension plan