MAINSAIL Group is in search of an experienced Senior Systems Modeler to join the Survivable Airborne Operations Center (SAOC) Program at Hanscom AFB. The SAOC program is a Major Defense Acquisition Program tasked with leading the development and delivery of the replacement fleet for the E-4B National Airborne Operations (NAOC). The E-4B fleet provides airborne national level command and control (C2) in support of SecDef and other national security leadership. The assigned Systems Modeler SME will work in direct support of government engineers and program managers through the acquisition cycle of the program. The ideal candidate will perform work that applies a broad theoretical and practical knowledge of Systems Based Engineering to the acquisition process.