At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history. Northrop Grumman Mission Systems (NGMS) seeks to fill a Principal Systems Engineer in Modeling & Simulation within the Systems Engineering, Integration, and Test (SEIT) organization for Central Region Engineering (CRE) at our Rolling Meadows - Illinois location. The selected candidates will be responsible for technical contributions & leadership for the SEIT department's Mission Systems Model Based Engineering (MSMBSE) and/or Systems Design (SD). This role encompasses team leadership, management, and technical performance. NGMS is a leading global provider, manufacturer and integrator of advanced, secure and agile software-defined systems and solutions. Our products range from advanced sensing technologies to state-of-the-art targeting and tracking systems that are deployed in Electro-Optical Infrared (EOIR) and Radio Frequency Electronic Warfare (RFEW) systems. These systems are designed, developed, built, integrated, and tested by the capable folks at our company to protect the lives of U.S. and Allied warfighters in present and future conflicts. Our SEIT organization provides complex avionics systems in Targeting, EOIR, and RF technology areas. Principal Engineer Systems opportunities are available in the following discipline in SEIT: Modeling & Simulation: Assignments include analysis and trades of product line architectures using analytical models and mission level simulations. A primary task for a modeling and simulations engineer is software development of in-house models and algorithms. Strong domain knowledge combined with valuable software development skills are required to produce the accurate models that drive the critical analysis needed to design our future systems. As a member of the SEIT team, a Modeling and Simulations engineer gains a deep understanding of how our systems architecture design process meets our mission level goals.