Sr Principal Cyber Systems Engineer

RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description 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. 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. Aeronautics Systems is seeking a Sr Principal System Security Engineer (SSE) to support the BQM-43 Targets program in Rancho Bernardo, CA. The selected candidate will apply systems engineering and cybersecurity disciplines across the program lifecycle, driving secure architectures, requirements, and implementations for the BQM-34 system. Roles & Responsibilities • Develop, decompose, and manage cyber and security requirements and ensure traceability through design, implementation, and test. • Define and maintain system and subsystem security architectures for AISR&T Programs, aligning with RMF, NIST, and DoD guidance. • Perform security risk assessments, threat modeling, and vulnerability analyses; recommend and track mitigation measures. • Produce and maintain security-related engineering artifacts (CONOPS, ICDs, security plans, interface specifications, test procedures). • Collaborate with software, hardware, network, and integration teams to embed security controls into designs and implementations. • Perform scans on program systems and develop associated findings reports and vulnerability analyses • Support security test planning and execution, review findings, and drive remediation activities. • Participate in technical reviews, trade studies, and customer/mission partner technical interchange meetings. • Prepare and deliver clear technical briefings and status to program leadership and customers. Basic Qualifications • Bachelor’s degree in Engineering, Computer Science, or related STEM discipline and 5 years of relevant experience. • Experience in systems engineering and/or cybersecurity (requirements, architecture, integration, or test). • Familiarity with government/industry security frameworks (e.g., NIST, RMF, DoD STIGs). • Active DoD Secret clearance required to start, with the ability to obtain and maintain higher-level clearances if program needs evolve. • Strong written and verbal communication skills and ability to work effectively on cross-functional teams. Preferred Qualifications • E