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Martin Marietta

Supplies aggregates and heavy building materials

Ready Mix Intern

Manufacturing & Production OperationsUpdated on Nov 12
InternshipPhoenix, AZ, USANo salary listedIn-person

About the Job

Requirements

  • Currently pursuing a Bachelor's degree in Mining Engineering, Civil Engineering, Mechanical Engineering, or Construction Management.
  • A valid driver's license is required.
  • No work experience is required.
  • Knowledge of OSHA compliance and regulations is required.
  • Knowledge of DOT compliance is required.
  • Familiarity with the ready-mix industry is required.
  • Proficiency with Microsoft Word and Excel is required.
  • The candidate must be able to lift and carry up to 50 pounds for plant maintenance and equipment servicing.
  • The candidate must be able to bend, stoop, climb, and reach, and maintain three points of contact when climbing on or off machinery or ladders.
  • Strong hand-eye-foot coordination is essential for operating hand and foot controls.
  • The candidate must have good depth perception, with or without visual aids, for distances up to 150 feet.
  • The candidate must be able to work outdoors in all weather conditions, including cold, wet, dry, and dusty conditions, and in noise levels up to 85 dB.

Responsibilities

  • Assist with daily ready-mix production activities at concrete batch plant locations.
  • Gain exposure to batching processes, plant operations, material flow, and production scheduling.
  • Follow company safety policies, procedures, and regulatory requirements.
  • Observe and assist with monitoring production efficiency and plant performance metrics.
  • Learn the functions and operation of batching equipment, material handling systems, and production technologies.
  • Assist with production reporting, documentation, and operational recordkeeping.
  • Assist dispatch personnel in coordinating deliveries and scheduling resources.
  • Observe route planning and fleet utilization processes.
  • Learn how production scheduling aligns with customer delivery requirements.
  • Monitor logistics metrics, including delivery times, fleet efficiency, and order fulfillment.
  • Support communication between dispatch, operations, drivers, and customers.
  • Assist with maintaining delivery records and operational documentation.
  • Participate in analyzing transportation and delivery performance.
  • Assist quality control personnel with testing procedures and documentation.
  • Observe laboratory and field-testing activities related to concrete quality.
  • Learn about concrete mix designs, material properties, and specification requirements.
  • Gain familiarity with industry standards, customer specifications, and quality assurance programs.
  • Collect, organize, and analyze production, delivery, and performance data.
  • Assist in preparing operational reports and management summaries.
  • Use Microsoft Excel and internal systems to evaluate business performance.
  • Support tracking of key performance indicators, including production volumes, plant utilization, delivery performance, and material consumption.
  • Assist management with special projects related to cost reduction and efficiency enhancement.
  • Participate in structured learning opportunities and mentorship programs.
  • Work with managers and operational leaders across multiple functional areas.
  • Complete assigned projects that contribute to operational improvements.
  • Present project findings and recommendations to management when applicable.

Desired Qualifications

  • Six months to one year of prior internship experience or a combination of internship and work experience is preferred.

About the Company

Martin Marietta

Supplies aggregates and heavy building materials

Martin Marietta is a leading supplier of aggregates and heavy building materials, serving communities through a network of operations in 29 states, Canada, and the Bahamas. It also runs a Specialties business that provides high-purity magnesia and dolomitic lime for environmental, industrial, agricultural, and specialty uses. The company’s products are used as foundational resources in construction and industrial applications, with materials sourced, processed, and delivered through an integrated network to customers. What sets Martin Marietta apart is its scale, geographic reach, and commitment to safety, integrity, excellence, community, and stewardship, along with a focus on customer service and being a good neighbor in hundreds of communities. Its goal is to build a world-class organization that supports the long-term success of employees, communities, and shareholders, creating lasting impact beyond tomorrow.

Company size
1,001-5,000
Company stage
IPO
Headquarters
Raleigh, NC
Founded
1961

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