Production Intern

Martin Marietta Materials, Inc.; California (MO); On-site; USD 34,000 - 41,000; Full time

Benefits offered by this job

Medical

Dental

Vision

401(k) matching

Job summary

Martin Marietta Materials, Inc. invites applicants for a 10-week Production Internship designed to provide hands-on exposure to the company's Aggregates business and mining operations.

Reported to plant leadership, the intern will participate in training, safety management, and production support within an active aggregate mining environment. The role offers an immersive learning experience across extraction, processing, and delivery, with projects to support operational priorities and

Qualifications

• Pursuing a Bachelor's degree in Mining Engineering, Civil Engineering, Mechanical Engineering, or Construction Management.
• Valid Driver's License.
• No work experience required; 6 months — 1 year internship preferred.
• MSHA compliance knowledge; familiarity with mining/aggregates industry.
• Proficient in MS Word & Excel.

Responsibilities

• Demonstrate strong commitment to safety culture and environmental compliance.
• Observe safety concerns, near misses, and potential risks; communicate them.
• Assist with safety audits, corrective actions, and incident prevention.
• Learn quarry planning, production scheduling, and material flow management.
• Support production teams to maintain throughput and product quality.
• Monitor plant performance, efficiency, and production targets.
• Participate in leadership development activities for future operations professionals.

Skills

MSHA compliance

Mining knowledge

MS Excel

Time management

Leadership

Communication

Education

Mining Engineering

Civil Engineering

Construction Management

Tools

MS Office

Job description

Description

JOB SUMMARY

The Production Internship is a developmental 10-week program role designed to provide students with comprehensive, hands-on exposure to Martin Marietta's Aggregates business and mining operations. Reporting directly to plant leadership, the intern will participate in an immersive learning experience that combines operational training, leadership development, safety management, and production support within an active aggregate mining environment.

KEY DUTIES AND RESPONSIBILITIES

Demonstrate a strong commitment to Martin Marietta's safety culture and environmental compliance standards. Observe, identify, and communicate safety concerns, near misses, and potential operational risks. Support compliance with MSHA, environmental regulations, and company safety policies. Assist with workplace inspections, safety audits, corrective actions, and incident prevention initiatives. Ensure all activities are conducted in accordance with Martin Marietta's Mission, Vision, Values, and Code of Ethical Business Conduct. Learn and support all stages of aggregate production from extraction through finished product shipment. Gain practical understanding of quarry planning, production scheduling, and material flow management. Assist in monitoring plant performance, operating efficiency, and production targets. Observe and participate in daily production activities under appropriate supervision. Support production teams in maintaining consistent throughput and product quality. Develop knowledge of material processing equipment and system interactions throughout the plant. Safely operate designated plant and mobile equipment after successful completion of required training and authorization. Participate in aggregate quality control testing and material sampling activities. Support efforts to ensure compliance with customer specifications and product standards. Work closely with plant managers, supervisors, and operations leaders to understand effective leadership practices. Observe and learn the responsibilities associated with managing production teams and plant performance. Develop skills in communication, problem solving, decision making, accountability, and team collaboration. Participate in leadership development activities designed to prepare future operations professionals. Build relationships across multiple functional areas including operations, maintenance, engineering, logistics, and quality control. Learn how aggregate products are mined, processed, sold, and delivered to customers. Understand key business drivers affecting aggregates operations, including productivity, cost management, sustainability, and customer service. Complete assigned internship projects that support operational priorities and create measurable business value.

QUALIFICATIONS

Education Currently pursuing a Bachelor's degree in Mining Engineering, Civil Engineering, Mechanical Engineering, or Construction Management. Valid Driver's License Work Experience No work experience is required; 6 months - 1 year of prior internship or a combination of internship and work experience, is preferred. Knowledge, Skills, and Abilities MSHA compliance and regulation Familiarity and knowledge of mining and aggregates industry Proficient Computer skills (MS Word & Excel) Time management High learning agility Curiosity Leadership Effective communicator (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.

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.

COMPENSTION

The hiring range for this position is $25.00 - $30.00 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.

• 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.

• paid time off
• paid holidays
• education/tuition assistance
• an employee discount program
• adoption assistance
• wellness programs and more

A member of the S&P 500 Index, Martin Marietta is an American-based company and a leading supplier of heavy building materials - including aggregates, cement, ready-mixed concrete and asphalt. Through a network of operations spanning 28 states, Canada and the Bahamas, dedicated Martin Marietta teams supply the foundational resources upon which our communities thrive. Martin Marietta's Magnesia Specialties business produces high-purity magnesia and dolomitic lime products used worldwide in environmental, industrial, agricultural and specialty applications.

At Martin Marietta, we strive to work with the best and the brightest - those who have the potential to become our company's future leaders. Each of our roughly 9,500 people shares a common purpose regardless of their professional role or work environment. Together, we utilize our diverse skills and experiences to drive our company and its extraordinary culture forward. Our aim is to build on our foundation of success and help values-driven and hardworking people realize their full potential. When you decide to invest your career in Martin Marietta, you'll know what it's like to be respected, challenged and rewarded. In return, we offer a highly competitive benefits package, including: Medical Prescription Drug Dental Vision Health Care Reimbursement Account Dependent Care Reimbursement Account Wellness Programs Employee Assistance Plan Paid Holidays and Vacation 401(k) with Company matching Pension Salary Continuation - Short-Term Disability Long-Term Disability Options Employee Life Insurance Spouse & Dependent Life Insurance Business Travel Accident Insurance Direct Deposit Payroll Educational/Tuition Assistance Plan College Scholarship Program - for dependent children Matching Gift Program New Auto Purchase Discount Plans

• Medical
• Prescription Drug
• Dental
• Vision
• Health Care Reimbursement Account
• Dependent Care Reimbursement Account
• Wellness Programs
• Employee Assistance Plan
• Paid Holidays and Vacation
• 401(k) with Company matching
• Pension Salary Continuation
• Short-Term Disability
• Long-Term Disability
• Employee Life Insurance
• Spouse & Dependent Life Insurance
• Business Travel Accident Insurance
• Direct Deposit Payroll
• Educational/Tuition Assistance Plan
• College Scholarship Program - for dependent children
• Matching Gift Program
• New Auto Purchase Discount Plans

We celebrate diversity and commit that qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

At Martin Marietta, we are proud to be an Equal Opportunity Employer. We are committed to providing an environment of mutual respect where equal employment opportunities are available to all qualified applicants and teammates.