Modeling and analysis experience in aspects of the missile defense system (e.g., Aegis Weapons Systems, Ground-based Midcourse Defense (GMD), Glide Phase Intercept (GPI), Hypersonic and Ballistic Tracking Space Sensor (HBTSS), Fire Control, C2BMC, MDS sensors (EO/IR/RF), kill vehicles, interceptors, countermeasures, etc.). This position will perform some or all of the following duties, concentrating on early-phase (concept, requirements, and design) activities of the Systems-Engineering Development Lifecycle: Lead the development of new system concepts by transforming stakeholder needs, acquired through documentation and solicitation, into easily reviewable technical approaches.