Sr Principal Engineer Systems - 125261

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Top 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. Northrop Grumman Aeronautics Systems is looking to add a Sr Principal Systems Engineer (T4) to join our team in Rancho Bernardo, CA, El Segundo, CA, Palmdale, CA. The candidate will apply the full systems engineering lifecycle—from concept and requirements definition through integration, verification & validation (V&V), and delivery. The role includes regular interaction with customers and leadership, including preparation and delivery of technical briefings Key Roles and Responsibilities • Apply the full systems engineering lifecycle, including Concept development and system definition, Requirements development, decomposition, and allocation, Interface definition and management, Integration, verification, and validation planning and execution • Develop Verification & Validation (V&V) strategies and plans, including Requirement Verification Plans and System Test & Verification Plans • Work closely with test and specialty engineering teams to ensure test procedures correctly interpret and verify requirements • Develop and maintain Interface Control Documents (ICDs) for internal and external system interfaces through internal coordination with Integrated Product Teams (IPTs), suppliers, and customers, and through interface working groups • Support development and documentation of system architectures and Concepts of Operations (CONOPS) working with cross-functional teams to ensure the architecture supports performance, reliability, safety, and maintainability objectives • Provide systems engineering input to design reviews (SRR, PDR, CDR) and integration/test readiness reviews • Prepare and deliver technical briefings to internal leadership and external customers. Basic Qualifications • Bachelor’s degree in a STEM discipline (Science, Technology, Engineering, or Mathematics) and 8 years of related engineering experience before start of employment; OR a Master’s degree in a STEM discipline and 6 years of related engineering experience; OR a PhD in a STEM discipline and 4 years of related engineering experience • Demonstrated experience across the systems engineering lifecycle, including: Requirements development and decomposition, Requirements management and traceability, Verification & validation planning and execution • Experience with requirements management tools (e.g., DOORS, DOORS Next, or similar). • Experience with ICD development and interface definition • Experience preparing and delivering technical presentations to customers or leadership • Active USG Top Secret SCI clearance (with a background investigation within the past 5 years or enrolled into Continuous Evaluation) • Ability to obtain and maintain initial Special Program Access (SAP/PAR). This SAP/PAR must be obtained prior to commencement of employment and must be obtained within a reasonable amount of time as determined