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 is seeking a Sr Principal Systems Engineer to work onsite at Schriever SFB, near Colorado Springs, CO for our Front Range Operations and Sustainment Team (FROST) program. We Liaison with the National Reconnaissance Office (NRO) and Satellite Control Network (SCN) to support our Front Range Operations and Sustainment Team (FROST) program, and to provide satellite support services to our mission critical customer. FROST conducts real time on-orbit support, launch ascent support and End-of-Life operations for all NOPS (NRO Operations Squadron) missions. On FROST we collect performance data on launches for the NRO, Department of Defense (DOD), NASA, and commercial industries.