Senior Principal Systems Engineer Requirements Lead (ONSITE)

Location: US-CA-FULLERTON-676 ~ 1801 Hughes Dr ~ BLDG 676 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required after day 1 Raytheon Company, Managed by Collins Aerospace Collins Aerospace, an RTX company, is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. We are looking for a Senior Principal Systems Engineer Requirements Lead to provide technical leadership within the systems engineering team and drive the development of requirements for the Joint Precision Approach and Landing System (JPALS) and related programs. This role is ideal for an experienced systems engineer who excels at engineering management, solving complex problems, communicating clearly, and guiding cross‑functional teams toward well‑structured, high‑quality system solutions. As the Systems Engineering Requirements Lead, you will take ownership of defining, managing, and evolving the system requirements for a fielded GPS‑based precision approach and landing system operating in some of the most demanding operational environments. You will lead the requirements process and the requirements team across the entire system lifecycle—ensuring clarity, traceability, and alignment with program needs—while collaborating with engineering, program management, test, and customer stakeholders. What You Will Do • Support the JPALS and JPALS-adjacent programs • Own the system requirements lifecycle through system-level and subsystem-level requirements development based on customer specifications and operational concepts, requirements decomposition, allocation, and traceability • Analyze stakeholder needs and translate them into technical, testable, and feasible requirements • Apply systems thinking to ensure requirements completeness, consistency, and proper allocation across hardware, software, and interfaces • Lead system requirements engineering team and provide guidance through key systems engineering milestones, such as SRR, PDR, CDR, and other major reviews • Develop and maintain requirements in IBM Rational DOORS, including traceability and change impact assessment • Create and use scripts to automate documentation import/export to/from DOORS across multiple formats • Define and document system and subsystem interfaces, contributing to ICDs and architecture artifacts • Lead technical discussions, design reviews, and requirement change assessments • Support verification planning by defining verification methods and collaborating with test teams Sign-on Bonus Eligible Qualifications You Must Have • Strong foundation in the fundamentals of systems engineering • Extensive experience in systems engineering for complex, multi‑disciplinary systems (hardware, software, avionics, mission systems, etc.) • Strong