A Cytotechnologist typically works for institutions and businesses that deliver care to patients, such as hospitals, remote diagnostic testing centers, physicians’ offices and outpatient care centers. Their main job is to process cellular samples obtained through pap smears, needle aspirations, biopsies and other tests so that a physician can provide a diagnosis or rule out the existence of a condition. Experienced Cytotechnologists may serve as supervisors of other laboratory technicians and help train new employees.