We are seeking a skilled Systems Engineer with a software background to lead the integration, debug, test/regression test, release, and maintain complex software-driven systems across various platforms. The ideal candidate should have hands-on software engineering experience to ensure scalable, secure, and high-performing system solutions. EMSS is a Satellite-based Personal Communications System (PCS), utilizing a commercial satellite infrastructure to provide voice and low data rate services from a mobile, lightweight terminal through a DoD dedicated gateway which accesses the Defense Information Systems Network (DISN). It can provide secure services, in addition to non-secure access to commercial telephone services. This role will be in Herndon VA.