GPI seeks a professional, innovative and detailed employee to perform field and laboratory testing of various materials including soil, aggregate, concrete and asphalt, in accordance with project specifications. Desired certifications: American Concrete Institute (ACI) Field Testing Grade I Technician, Radiation Safety - Nuclear Densometer, International Code Council (ICC) Certifications. Strong computer, written/verbal, and organizational skills, ability to work independently and accept ownership of assigned responsibilities, physical demands of lifting or moving 75 pounds or more. Preference will be given to candidates with experience.