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US Citizenship is required in order to obtain and maintain security clearance Demonstrated experience with algorithm development for satellite acquisition, tracking, and receiver measurement formation Demonstrated experience with design of GPS receiver tracking loops, including characterization of platform dynamics, environmental/interference effects, jamming mitigation techniques on GPS processing Exposure to requirements specification and interface control documents (ICD) for GPS-153/RS-232,etc. Demonstrated experience in a technical lead role for a GPS product or lead role for an integrated product team (IPT). Hands-On experience with software defined Global Navigation Satellite System (GNSS) receivers. 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