Concrete Quality Control Technician. Seeking an experienced concrete quality control technician to test aggregates and concrete. Individual must have a valid ACI Level 1 certification or have had it in the past and be able to pass the exam again. Must have at least 1 year of experience testing aggregates and concrete. Must be able to lift 75lbs. Must be able to use Microsoft Office Suite of programs, especially excel and word. Must be proficient ...