Materials Testing Tech II

Sundt•Lukeville, AZ

About The Position

The Materials Testing Technician performs field and laboratory sampling, testing, and documentation of soils, aggregates, concrete, and other construction materials in support of heavy civil and transportation projects. The role obtains representative samples, conducts testing in accordance with ASTM, AASHTO, and project specifications, and documents results to verify compliance with contract requirements. The technician works closely with field operations, crushing crews, quality personnel, and subcontractors, and reports directly to the Materials Testing Manager. The position requires a strong commitment to safety, accuracy, and quality in a demanding construction environment. The role also supports aggregate crushing and processing through quality-control sampling, stockpile monitoring, gradation testing, and material verification. Work may involve remote project assignments, extended hours, and various shifts, including swing, night, and weekend work.

Requirements

2–4 years of experience in construction materials testing, preferably on heavy civil, transportation, mining, or infrastructure projects.
ACI Aggregate Base Technician certification.
ACI Concrete Aggregate Technician Level 1 certification.
ACI Concrete Field Testing Technician Grade I certification.
ACI Concrete Strength Technician certification.
Ability to prioritize testing activities in a fast-paced construction environment.
Ability to read and interpret project specifications, testing procedures, and construction plans.
Ability to work extended hours, weekends, and remote project assignments as required.
Ability to work independently in remote field conditions.
Effective communication skills with field crews, inspectors, and project management personnel.
Excellent attention to detail and commitment to data accuracy.
Experience on federal, DOT, USACE, or other heavy civil infrastructure projects.
Experience performing aggregate sampling, gradation testing, moisture testing, field density testing, and concrete testing.
Experience supporting aggregate crushing operations and quarry quality-control programs.
High school diploma or GED required.
Nuclear Gauge Safety Certification.
Proficiency with basic computer applications, including Microsoft Office and electronic reporting systems.
Strong organizational and documentation skills.
Strong understanding of aggregate, soil, and concrete testing procedures.
Valid driver's license and ability to travel between testing locations and project sites.
Working knowledge of ASTM and AASHTO testing procedures for soils, aggregates, and concrete.

Nice To Haves

Associate degree in Civil Engineering Technology, Construction Technology, or a related field.
State DOT, NICET, or equivalent materials testing certifications.

Responsibilities

Accurately document testing activities, sample identification, test results, and field observations using approved forms and reporting systems.
Assist with calibration, maintenance, and inventory control of testing equipment and laboratory supplies.
Communicate testing results, deficiencies, and quality concerns promptly to the Materials Testing Manager and project quality personnel.
Coordinate testing activities with construction operations to support production schedules while maintaining contractually required testing frequencies.
Follow company safety policies, project safety requirements, and applicable regulations during field and laboratory work.
Inspect materials and testing activities for compliance with approved mix designs, project specifications, and quality requirements.
Maintain chain-of-custody and sample tracking procedures for materials testing activities.
Obtain representative samples of soils, aggregates, concrete, and other construction materials according to ASTM, AASHTO, and project-specific requirements.
Perform field and laboratory testing of construction materials, including aggregate gradations, plasticity index (liquid limit/plastic limit), moisture-density relationships, field density testing, concrete testing, and other specified quality-control tests.
Support aggregate crushing and processing operations through routine quality-control sampling, stockpile monitoring, gradation testing, and material verification.