Boeing Defense, Space & Security (BDS) is seeking a Lead Systems Engineer to support Air Dominance and Fighters programs located in Berkeley, MO. This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. An interim U.S. Secret Clearance Pre-Start and final U.S. Secret Clearance Post-Start is required. This position is expected to be 100% onsite. The selected candidate will be required to work onsite. Ability to obtain and maintain Special Access Program (SAP) clearance.