Performs under the specific direction of senior laboratory personnel designated to product development, qualification or project test phases; performs laboratory work which is closely supervised and wherein objectives, technical decisions and methods are prescribed, clearly outlined or made by others. Subject to a pre-employment drug screening for Marijuana (THC metabolite), Cocaine, Amphetamines, Opiates, and Phencyclidine (PCP); then random screenings for alcohol, Marijuana (THC metabolite), Cocaine, Amphetamines, Opiates, and Phencyclidine (PCP) after hire.