Production Supervisor II

Martin Marietta; Santa Margarita (CA); On-site; USD 95,000 - 120,000; Full time

Job summary

Martin Marietta is seeking a Production Supervisor II in California to lead frontline operations, drive safety culture, and ensure production targets meet quality standards. You will manage a team of hourly employees and coordinate with maintenance for preventive programs.

The role emphasizes safety leadership, regulatory compliance, and cost-conscious production planning, with outcomes tied to KPI improvements and team development.

Qualifications

• High school diploma or GED or relevant experience.
• 4+ years in aggregates, mining or construction operations.
• Knowledge of MSHA and EPA regulations.
• Strong communication and leadership abilities.

Responsibilities

• Champion Guardian Angel safety program and reduce incidents daily.
• Ensure compliance with MSHA, EPA, and environmental permits.
• Lead safety meetings, site inspections, and risk mitigation.
• Document safety incidents, near-misses, and corrective actions.
• Coordinate daily production schedules and maintain quality control.
• Collaborate with maintenance for preventive programs on plant equipment.
• Manage supplies purchases following company policy and vendor efficiency.
• Coordinate staffing with Plant Manager and HR for compliant staffing.
• Support development of annual HR plan and employee training.
• Monitor KPIs on production, downtime, and costs; coach hourly staff.

Skills

Production processes

Quality control

Critical thinking

Problem solving

MSHA compliance

EPA compliance

Project management

Resource management

Effective communicator

Plant components knowledge

Education

High school diploma or GED

4+ years in aggregates/mining/construction ops

Job description

JOB SUMMARY

The Production Supervisor II is a critical leadership role responsible for the front-line management of daily operations at a Martin Marietta facility. This position ensures that all production, maintenance, and distribution activities are executed safely, efficiently, and in alignment with the company’s "Guardian Angel" safety culture and "ONE" team values. You will lead a team of hourly employees, fostering an environment of accountability and continuous improvement while meeting production targets and quality control standards.

KEY DUTIES AND RESPONSIBILITIES

• Function as a champion for the Guardian Angel safety program, ensuring that "ZERO" (incidents) is the daily goal for every team member.
• Ensure 100% compliance with MSHA, EPA regulations, as well as state and local environmental permits.
• Conduct weekly/monthly safety meetings, perform routine site inspections, and oversee "Wingman" safety checks to identify and mitigate hazards immediately.
• Document all safety incidents, near-misses, and corrective actions with a high sense of urgency and transparency.
• Coordinate daily production schedules and activities to achieve the highest levels of efficiency and output while maintaining strict Quality Control (QC) standards.
• Work closely with the maintenance team to schedule and implement preventative maintenance (PM) programs for plant and mobile equipment (crushers, conveyors, screens, etc.).
• Manage the purchase of supplies and equipment in accordance with company policy, focusing on cost reduction and vendor efficiency.
• Purchase or direct the purchase of supplies and equipment in accordance with Martin Marietta’s Controllers policies - recommend vendors to reduce costs.
• Coordinate staffing with the Plant Manager to operate the plant and coordinate the same needs with labor law compliance and affirmative action with the Human Resource Department properly and safely.
• Assist in the development of the annual human resources business plan and ensure continual development of employees through training, cross-training and other development tools.
• Generate profit plans, AFEs, market analyses and special reports for the approval of Plant Manager.
• Monitor and report on Key Performance Indicators (KPIs) related to production volume, downtime, and operational costs.
• Direct, teach, and coach an hourly workforce. Conduct annual performance evaluations and recommend merit increases or progressive discipline when necessary.
• Develop and nurture self-directed work teams through cross-training, safety education, and technical skill-building.
• Maintain exceptional plant appearance and housekeeping standards to reflect Martin Marietta’s commitment to excellence and community stewardship.
• Monitor dust collection systems, water management, and site reclamation efforts to ensure minimal environmental impact.

QUALIFICATIONS

Education

High school diploma, GED, or relevant experience

Work Experience

4+ years in Aggregates, Mining, or Construction Operations

Knowledge, Skills, and Abilities

• Production process and methods
• Quality control methods
• Critical thinking
• Problem solving
• MSHA compliance and regulations
• EPA
• Project management
• Resource management
• Effective communicator (written and spoken)
• Strong knowledge of plant components

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.

The hiring range for this position is $95,000 -$120,000 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, this role is eligible for our annual bonus program. Bonuses awarded under this program are determined based on the performance of the organization and the employee.

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; and life, AD&D and disability insurance. We also encourage our employees to plan for the future by offering a 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.