Lead Plant Maintenance Technician

Martin Marietta; Santee (CA); On-site; USD 4,133,000 - 6,612,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k) with company match

Pension plan

Paid time off

Education assistance

Wellness programs

Job summary

Martin Marietta is seeking a Maintenance Lead Person to oversee preventive maintenance, safety, and reliability at our aggregate processing plants. This role leads a small team of technicians, performs advanced repairs on conveyors, pumps, gearboxes, and related systems, and drives process improvements to meet production goals.

You will coordinate with supervisors and vendors, maintain maintenance records, ensure MSHA compliance, and coach staff on best practices while prioritizing safety,

Qualifications

• Knowledge of plant equipment and repair concepts
• Ability to troubleshoot and diagnose maintenance issues
• Strong problem-solving and attention to detail
• Good time management and ability to prioritise tasks
• MSHA compliance knowledge and regulations
• Clear written and verbal communication skills

Responsibilities

• Evaluate plant equipment to identify opportunities to improve availability and yield
• Lead projects implementing broad-scale maintenance initiatives
• Coordinate with vendors to procure maintenance support and lead selections
• Develop reports on plant capacity, yield, and maintenance activities
• Maintain accurate maintenance records and ensure compliance with company standards
• Perform safety inspections and enforce prioritization of safety first
• Oversee preventive maintenance, repairs, and equipment upgrades as needed
• Coach and train staff on maintenance best practices

Skills

Equipment analysis

Troubleshooting

Problem-solving

Detail oriented

Time management

MSHA compliance

Effective communication

Education

High school diploma or GED

Job description

JOB SUMMARY

The Maintenance Lead Person plays a critical leadership role in ensuring the operational readiness, safety, and reliability of Martin Marietta’s aggregate processing plants. This position involves performing advanced maintenance, guiding a small team of technicians, and driving process improvements to meet maintenance and production objectives. Tasks including but not limited to-- stationary and mechanical systems such as conveyors, shakers, pumps, and gearboxes, as well as general facility maintenance involving electrical, plumbing, and basic structural systems.

This role performs preventive maintenance, equipment diagnostics, and/or fabrication welding work as needed to minimize downtime and improve reliability.The Maintenance Lead Person actively supports safety initiatives, maintains detailed maintenance records, and partners with supervisors, vendors, and leadership to ensure all repairs and upgrades meet company and regulatory standards.

KEY DUTIES AND RESPONSIBILITIES

• Performs evaluations of plant equipment seeking opportunities to improve availability, capability, and yield.
• Studies trends to identify systemic plant maintenance needs.
• Leads projects to implement broad-scale plant maintenance initiatives.
• Works with vendors to procure plant maintenance support, leading the related vendor selection process.
• Works with plant leadership and corporate leaders to understand reporting needs and develop reports on plant capacity, yield, and related plant maintenance activities.
• Reports plant maintenance themes and trends to leadership and executives as needed.
• Maintains appropriate plant maintenance records of information and data in respective technological systems.
• Conducts MSHA pre-shift safety inspections of equipment and work areas.
• Prioritizes safety first, followed by quality and production.
• Maximizes equipment performance by completing preventive maintenance and timely repairs per the Maintenance Module.
• Checks, repairs, and replaces pumps, conveyors, gearboxes, and screens to minimize downtime.
• Operates cranes, man‑lifts, welding and cutting tools, and other specialty equipment as needed.
• Performs fabrication, erection, and repair of processing and mobile equipment.
• Ensures maintenance backlog is reviewed and prioritized with the Supervisor and/or Plant Manager.
• Completes all required paperwork to maintain equipment in compliance with Martin Marietta standards.
• Trains and coaches employees on maintenance best practices, serving as a technical leader within the plant.
• 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.

QUALIFICATIONS

Education

High school diploma, GED, or relevant experience

Work Experience

4+ years of related experience in Heavy-Duty or Aggregate Plant Maintenance preferred.

Knowledge, Skills and Abilities

Equipment analysis and general repair concepts

Troubleshooting

Problem-solving

Detail oriented

Time management

MSHA compliance and regulations

Effective communication (written and spoken)

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.

The hiring range for this position is $30.00 -$48.00 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.

In addition to our base compensation, we also offer a competitive benefits package for full‑time employees, including 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. Other benefits include paid time off, paid holidays, education/tuition assistance, an employee discount program, adoption assistance, wellness programs and more.

Part time employees are eligible to participate in the 401k plan and receive a company match. In addition, they are eligible to start accruing service for the pension plan.