The Martin Marietta Production Internship is an investment in you. It is our way of identifying and developing the very best people and it is your portal to a challenging and rewarding career. When you join our team, you bring to the table your unique talents along with shared values of excellence and integrity. Many of our most valuable company leaders began their careers as interns. Reporting to a Plant Manager, the Production Intern will enter an approximately 10-week program to learn the Aggregates business and develop production and leadership skills. The goal of the Production Internship program is to provide individuals with hands-on experience in the Aggregates mining industry.