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Martin Marietta Materials, Inc. is seeking a Quality Control Technician to perform sampling and routine laboratory testing of aggregate materials and hot mix asphalt.
You will apply ASTM/AASHTO standards to verify gradation, moisture, density, and binder content, supporting production, placement, and customer relations. This entry‑level position works with plant operations, the Division Lab, and project teams to ensure material conformity, maintain logs, and communicate results.
The Quality Control Technician will be responsible for sampling and performing routine laboratory testing of aggregate materials. The QC Tech uses prescribed standards to determine gradational and/or physical characteristics for quality control purposes and determine conformity to specifications. The Quality Tech. supports the Colorado Market by performing entry‑level quality control testing, inspection, and documentation for aggregate and Hot Mix Asphalt (HMA) materials. The role ensures that production and placement activities comply with ASTM, AASHTO, CDOT, and Martin Marietta quality standards. This position works closely with Plant Operations, Dispatch, Project Management, and the Division Lab to monitor material consistency, support daily testing, and help maintain strong customer relationships. The Quality Tech. plays a key role in identifying potential quality issues, supporting environmental stewardship, and ensuring that safety remains the top priority across all tasks.
High school diploma, GED, or relevant experience
A & B certification is required
Radiation Safety Training Certificate
No prior work experience required; 6 months – 1 year in Quality Control Testing within HMA or Aggregates is preferred.
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.