Quality Control Technician
About this role
JOB SUMMARY
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.
KEY DUTIES AND RESPONSIBILITIES
- Follow all Martin Marietta safety policies and procedures; ensure every task is executed with safety as the first priority.
- Support environmental compliance by maintaining clean work areas, proper material handling, and adherence to environmental standards.
- Perform routine testing of aggregates and HMA according to ASTM, AASHTO, CDOT, and internal standards. Tests may include gradation, moisture content, density, temperature, and asphalt binder content.
- Work with plant operations to monitor aggregate moisture, cleanliness, and uniformity to ensure materials meet production quality targets.
- Assist with sampling raw materials and support Division Lab schedules for routine and project‑specific testing.
- Participate in testing and evaluation of new raw material sources under supervision; report any suspect results immediately.
- Interact professionally with customers at job sites; provide basic guidance on HMA placement and compaction techniques as needed.
- Conduct on‑site testing and observations to verify that delivered materials meet specifications and support resolution of quality concerns.
- Maintain accurate logs of all testing performed at the lab, plant, and job sites, including observations and test results.
- Communicate daily HMA testing results to plant operations, project teams, and management.
- Work closely with operations, dispatch, estimators, and project management to support quality objectives.
- Assist in implementing quality‑related best practices for production, delivery, and placement of materials.
- Participate in occasional lab work for training, mix design support, and special projects.
QUALIFICATIONS
Education
High school diploma, GED, or relevant experience
CAPA Levels A & B certification is required
Radiation Safety Training Certificate
Work Experience
No prior work experience required; 6 months – 1 year in Quality Control Testing within HMA or Aggregates is preferred.
Knowledge, Skills, and Abilities
Quality tools and techniques
QA standards and procedures
Time management
Effective communicator (written and spoken)
Detail oriented
Problem solving
Collaboration
ADDITIONAL DETAILS
Physical Requirements
Must be able to lift and carry up to 50 lbs. for 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.
Company at a glance
Every member of our ONE Martin Marietta team is driven by our shared values of safety, integrity, excellence, community and stewardship.
Our goal is to build a world-class organization committed to the long-term success of our employees, communities and other shareholders. 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.
We provide exceptional customer service and strive to be good neighbors in the 500 communities in which we operate. We also support each other while working to build a legacy that will make our loved ones proud. We know that together, we’ll make an impact that lasts far beyond tomorrow.
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