The successful candidate will serve as a Senior Principal System Engineer with Subject Matter Expert (SME) in the area of SIGINT. The person filling this position will perform systems engineering functions in support of SIGINT programs, which will include developing requirements in response to customer operational needs, maturing operational systems concepts, developing and/or implementing system-level sensor models for candidate sensors, assessing system alternatives, and providing support to system integration and test activities A successful candidate will be able to perform and/or review technical analyses of SIGINT system performance, signal processing techniques and system error and performance budgets. The SME will provide customer-facing support to the SIGINT business and will support identifying new opportunities and anticipating evolving program requirements.