Medical Instrument Technicians (Polysomnography) at the GS-9 level, under the supervision of the Pulmonary Section Chief will serve as a senior sleep technician and/or lead and will assist in scheduling, preparing, collecting, monitoring and assessing complex biological electroencephalographic and pulmonary data for multiple specific difficult polysomnographic procedures. Basic Requirements: United States Citizenship: Non-citizens may only be appointed when it is not possible to recruit qualified citizens in accordance with VA Policy. Education: There are no specific educational requirements for this occupation. Education may be substituted for experience only at the GS-4 and GS-5 levels. See the grade requirements part of this standard for information regarding educational substitutions.