Position Summary: Documents non-destructive testing (NDT) methods, processes, or results. Identifies defects in solid materials using ultrasonic testing techniques. Interprets or evaluates test results in accordance with applicable codes, standards, specifications, or procedures. Prepares reports on non-destructive testing (NDT) results. Selects, calibrates, or operates equipment used in the non-destructive testing (NDT) of products or materials. Conducts liquid penetrant tests to locate surface cracks by coating objects with fluorescent dyes, cleaning excess penetrant, and applying developer. Maps the presence of imperfections within objects using sonic measurements. Interprets the results of all methods of non-destructive testing (NDT) such as acoustic emission, electromagnetic, leak, liquid penetrant, magnetic particle, neutron radiographic, radiographic, thermal or infrared, ultrasonic, vibration analysis, and visual testing. Examines structures or vehicles such as aircraft, trucks, nuclear reactors, bridges, dams, and pipelines using non-destructive testing (NDT) techniques. Produces images of objects on film using radiographic techniques. Makes radiographic images to detect flaws in objects while leaving objects intact. Visually examines materials, structures, or components using tools and equipment such as endoscopes, closed circuit television systems, and fiber optics for signs of corrosion, metal fatigue, cracks, or other flaws. Develops or uses new non-destructive testing (NDT) methods such as acoustic emission testing, leak testing, and thermal or infrared testing. Identifies defects in concrete or other building materials using thermal or infrared testing. Evaluates material properties using radio astronomy, voltage and amperage measurement, or rheumatic flow measurement. May provide guidance to trainees or more junior staff.