Intern, Continuous Improvement/Industrial Engineering (Summer 2027)

00002 Martin Marietta Materials, Inc.; Salisbury (NC); On-site; USD 25,000 - 36,000; Full time

Job summary

The Salisbury Shop Engineering Internship at Martin Marietta Materials, Inc. offers students hands-on experience supporting engineering, fabrication, machining, and repair operations within the company's sole crusher repair facility.

Reporting to the Shop Manager, interns apply classroom knowledge to real-world industrial processes and develop technical, analytical, and project management skills. Interns will gain exposure to safety, quality control, continuous improvement, 5S, automation, and

Qualifications

• Currently pursuing a bachelor's degree in Industrial Engineering, Manufacturing Engineering or Automation Engineering.
• Strong verbal and written communication skills.
• Proficiency with AutoCAD preferred.
• Strong attention to detail and willingness to learn in a manufacturing and engineering environment.
• Ability to work independently with minimal supervision.
• Strong analytical, problem-solving, and organizational skills.
• Ability to sit, stand, walk, kneel, bend, or perform physical activities for extended periods as required.
• Ability to wear required PPE in operational areas.

Responsibilities

• Follow and promote safety, environmental, and ethical standards in all work activities.
• Actively participate in safety initiatives and support a culture of safety excellence.
• Identify and assist with projects that improve facility and process safety and 5S.
• Identify and scope projects which increase automated processes in mechanic, welding, machining, and warehousing operations.
• Record and develop work instructions for our common repair processes.
• Assist in the transition of our quality control processes from paper to digital.
• Gain hands-on experience using precision measuring equipment, including micrometers, calipers, and vision measuring systems.
• Observe and support CNC machining and CNC cutting processes within the manufacturing environment.
• Gain exposure to welding operations and machine assembly/disassembly activities.
• Collaborate effectively with engineering, fabrication, machining, and maintenance teams to support operational objectives.
• Demonstrate initiative, professionalism, and a strong work ethic while working independently and as part of a team.

Skills

Communication

AutoCAD

Analytical skills

Attention to detail

Independent work

Problem solving

Education

Bachelor's degree in Industrial/Manufacturing/Automation Engineering

Tools

AutoCAD

Job description

This role will provide an opportunity to contribute towards key projects and analysis that are important to our business. Contributions include coordination of small projects, leading project tasks, documenting processes, providing ad-hoc analysis, and supporting efforts to build and maintain business processes, systems, and data. Subject matter experts will provide guidance to help resolve complex problems. The Martin Marietta Continuous Improvement/Industrial Engineering Internship at the Salisbury Shop provides students with meaningful, hands-on experience supporting engineering, fabrication, machining, and repair operations within the Company's only crusher repair facility. Reporting to the Shop Manager, the Engineering Intern will gain exposure to a wide variety of engineering and manufacturing processes while working alongside experienced engineers, machinists, welders, and maintenance and warehouse personnel. This opportunity allows students to apply classroom knowledge in a real-world industrial environment while developing technical, analytical, and project management skills. Interns will gain experience in safety, quality control, continuous improvement, 5S, automation, and procedure development. Additional learning opportunities include hands-on CNC machining processes, CNC cutting processes, welding operations, and rock crusher assembly and disassembly processes. Through these experiences, interns will develop a deeper understanding of manufacturing, equipment maintenance, and engineering practices that support safe, efficient, and reliable operations.

Key Responsibilities

• Follow and promote Martin Marietta's safety, environmental, and ethical standards in all work activities.
• Actively participate in company safety initiatives and support a culture of safety excellence.
• Demonstrate safety consciousness, dependability, motivation, and professionalism in daily activities.
• Identify and assist with the implementation of projects that improve facility and process safety, quality control, and facility-wide 5S adoption.
• Identify and scope projects which increase automated processes in mechanic, welding, machining, and warehousing operations.
• Record and develop work instructions for our common repair processes.
• Assist in the transition of our quality control processes from paper to digital.
• Gain hands-on experience using precision measuring equipment, including micrometers, calipers, and vision measuring systems.
• Observe and support CNC machining and CNC cutting processes within the manufacturing environment.
• Gain exposure to welding operations and machine assembly/disassembly activities.
• Collaborate effectively with engineering, fabrication, machining, and maintenance teams to support operational objectives.
• Demonstrate initiative, professionalism, and a strong work ethic while working independently and as part of a team.
• Perform all responsibilities in accordance with the Company's Mission, Vision, Values, policies, procedures, and Code of Ethical Business Conduct.

Qualifications

• Currently pursuing a bachelor's degree in Industrial Engineering, Manufacturing Engineering or Automation Engineering.
• Strong verbal and written communication skills.
• Proficiency with AutoCAD preferred.
• Strong attention to detail and willingness to learn in a manufacturing and engineering environment.
• Ability to work independently with minimal supervision.
• Strong analytical, problem-solving, and organizational skills.
• Ability to work in both office and shop environments.
• Ability to sit, stand, walk, kneel, bend, or perform physical activities for extended periods as required.
• Ability to wear required Personal Protective Equipment (PPE), including safety glasses, safety-toe shoes, hard hats, hearing protection, high-visibility clothing, and other required safety equipment while in operational areas.

Why Martin Marietta?

At Martin Marietta, we invest in developing future leaders. The Salisbury Shop Engineering Internship provides meaningful project work, experienced mentors, and direct exposure to engineering, manufacturing, fabrication, and equipment repair operations supporting one of North America's leading building materials companies. Interns gain valuable hands‑on industry experience while building technical knowledge, professional relationships, and leadership skills that can lead to future internship opportunities and full-time career paths within Engineering, Operations, Manufacturing, and Maintenance. If you're looking for an opportunity to learn, grow, and help build the foundations of America's infrastructure, we encourage you to apply. Every member of our ONE Martin Marietta team is driven by our shared values of safety, integrity, excellence, community and stewardship. We are a member of the S&P 500 Index and a leading supplier of aggregates and heavy building materials. Through a network of operations spanning 29 states, Canada and the Bahamas, our teammates supply the foundational resources on which our communities thrive and grow. Our Specialties business provides high-purity magnesia and dolomitic lime products used worldwide in environmental, industrial, agricultural and specialty applications. In a world that's focused on the power of many, we believe in the power of ONE - the magic of bringing together our unique perspectives, experiences and talents to evolve a shared vision and future. Our backgrounds may vary, but our voices come together in support of the same goals. We want to build legacies for ourselves and our loved ones, strengthen our communities and safely and responsibly engage in work we know will make a difference.