• Quality Control Technician…

    Upstone Materials (Irwindale, CA)
    Quality Control Technician III Company: BLUE DIAMOND Location: Irwindale Country: USA Type of Contract: Regular / Permanent Publication Date: Oct 1, 2025 ... of Companies, please visit www.colasusa.com. Compensation $38 per hour Job Summary The Quality Control Technician 3 is responsible for sampling, testing,… more
    Upstone Materials (10/05/25)
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  • Quality Control Technician I

    Upstone Materials (Irwindale, CA)
    Quality Control Technician I Company: BLUE DIAMOND Location: Irwindale Country: USA Type of Contract: Regular / Permanent Publication Date: Oct 1, 2025 Blue ... visit www.colasusa.com. Compensation $26 per hour Job Summary The Quality Control Technician I is...proficiency in sampling, testing, and calculating values for asphalt, aggregates , and other materials + Identify product quality… more
    Upstone Materials (10/05/25)
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  • Field Soils Technician

    Essel (Santa Ana, CA)
    …project documents. + Document project grading activities. + Provide sampling and Quality Control of concrete and/or grout. Requirements Required Competencies: + ... + Provide grading observations. + Provide compaction testing on soils, aggregates and asphalt. + Provide special inspections per additional inspection certifications… more
    Essel (09/08/25)
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