Principal Engineer (Systems Engineer)

We are seeking a Principal Systems Engineer to support U.S. production transition, platform integration, and development of Active Protection System (APS) technologies. This role focuses on APS launcher and countermeasure integration onto current and future U.S. military platforms. Under technical oversight of an Engineering Fellow, responsibilities include converting foreign-partner technical data into a domestic baseline, leading system integration, resolving interface issues, supporting qualification, and enabling future upgrades. Candidates must collaborate across disciplines and engage with hardware during tests. A hybrid work schedule is available with on-site presence in Colchester. Regular domestic and periodic international travel to suppliers and military facilities is required.