Aggregate Technician (AMRG)

Ecology Auto Parts, Inc.•Desert Center, CA
•$25 - $38

About The Position

Aggregate Mineral Resource Group, LLC. is seeking a knowledgeable, detail-oriented Aggregate Technician to support aggregate production, sampling, testing, and quality control at active quarry and material processing facilities. The role conducts aggregate sampling and laboratory testing, ensures materials comply with Caltrans specifications, maintains accurate testing documentation, and supports operational quality assurance initiatives. The Technician works with quarry operations personnel, plant operators, quality control teams, contractors, and management to help ensure aggregate materials meet requirements for construction, infrastructure, and roadway applications. The position involves both field sampling and laboratory testing in active aggregate production facilities, quarry operations, and laboratory environments. Schedules may vary with production demands, testing requirements, and operational priorities, and travel between operating sites may be needed. The role requires attention to detail, operational awareness, and the ability to maintain quality standards in a fast-paced industrial environment. The stated office hours are 0700–1900, Monday through Friday. The position is full-time and non-exempt. Compensation is $25.00–$38.00 per hour, depending on experience, certifications, technical expertise, and industry background. Benefits include medical, dental, and vision insurance, a 401(k) plan with employer matching, paid time off, and additional company-sponsored benefits.

Requirements

  • Current Caltrans aggregate testing certifications are required.
  • Minimum 2–5 years of experience in aggregate testing, quality control, construction materials, or quarry operations is preferred.
  • Strong understanding of aggregate production processes, material specifications, and testing procedures.
  • Knowledge of Caltrans standards, laboratory testing protocols, and quality assurance requirements.
  • Experience performing laboratory and field testing for aggregate and construction materials.
  • Strong attention to detail and ability to maintain accurate documentation and testing records.
  • Ability to analyze material data and communicate findings effectively to operations personnel and leadership.
  • Strong organizational, communication, and problem-solving skills.
  • Ability to work independently and manage multiple testing priorities in a fast-paced environment.
  • Valid driver’s license and reliable transportation are required.

Nice To Haves

  • Experience in aggregate testing, quality control, construction materials, or quarry operations (2–5 years preferred).
  • Familiarity with crushing plants, screening systems, quarry operations, and material processing environments.
  • Proficiency with Microsoft Office and basic reporting systems.

Responsibilities

  • Perform aggregate sampling, testing, and quality control according to Caltrans and industry standards.
  • Conduct laboratory and field tests of aggregate materials, including gradation, moisture content, density, sand equivalent, and other required tests.
  • Collect and document representative samples from quarry, crushing, screening, and stockpile operations.
  • Maintain accurate testing records, quality assurance documentation, and compliance reports.
  • Ensure aggregate products meet Caltrans specifications, project requirements, and customer quality standards.
  • Collaborate with operations personnel and plant operators to identify and address material quality issues.
  • Monitor production trends and communicate quality concerns to operations leadership.
  • Maintain testing equipment, laboratory instruments, and sampling tools in proper working condition.
  • Assist with internal audits, quality inspections, and compliance reviews.
  • Coordinate with external inspectors, contractors, vendors, and regulatory personnel during material evaluations and site visits.
  • Support operational improvement initiatives related to aggregate quality, production consistency, and material performance.
  • Follow company safety procedures, MSHA regulations, and environmental compliance standards.
  • Assist with inventory management of laboratory supplies, testing materials, and operational consumables.
  • Participate in safety meetings, operational training, and ongoing quality assurance initiatives.
  • Travel between operational sites as necessary to support testing and inspection activities.

Benefits

  • Medical insurance
  • Dental insurance
  • Vision insurance
  • 401(k) plan with employer matching
  • Paid time off
  • Additional company-sponsored benefits
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