Senior Principal Systems Engineer

Be responsible for the technical baseline development by capturing, analyzing, and finalizing the functional and performance requirements baseline; maintain full traceability in DOORS and confirm verifiability ahead of the Critical Design Review (CDR). Develop functional and physical system architectures, conduct trade‑off studies, and select optimal solutions that advance system maturity toward production readiness. Organize and lead internal design‑review meetings; facilitate external CDR sessions with customers, suppliers, certification bodies and other partners, collecting feedback, documenting decisions and driving corrective actions to closure. Collaborate with integration and test teams on schedules, maintain Interface Control Documents (ICDs) and create comprehensive test verification matrices that cover hardware‑in‑the‑loop (HIL) and software‑in‑the‑loop (SIL) scenarios. Lead verification execution, analyze test and analysis results, resolve discrepancies and close verification loops to satisfy CDR baseline requirements and subsequent system qualification. Manage baseline configuration items, enforce version control and conduct impact analyses for changes throughout system verification and validation. Author and maintain critical CDR artifacts—System Requirements Document, ICD, Design Description, Test Plans, Risk Register—and produce regular status reports and executive‑level presentations on CDR and verification readiness, risks and mitigation strategies. Provide technical guidance and mentorship to junior engineers; actively participate in cross‑functional teams to ensure alignment with program objectives and promote knowledge sharing across mechanical, electrical and software disciplines. Drive continuous improvement by identifying process inefficiencies, proposing updates to configuration‑management practices and contributing to lessons‑learned documentation for future programs. This position is contingent on the successful transfer of a US security clearance Bachelor of Science in a STEM discipline + 8 years of related experience; Master of Science in a STEM discipline + 6 years of related experience; PhD in a STEM discipline + 4 years of related experience Demonstrated systems‑engineering experience, preferably in aerospace or defense. Proficient with systems‑engineering tools such as DOORS, CAMEO, MATLAB, or comparable software. Strong analytical and problem‑solving skills; able to interpret complex data and generate actionable insights. Excellent written and verbal communication, capable of translating technical concepts for non‑technical audiences. Collaborative team player who actively contributes to cross‑functional projects. Meticulous attention to detail with a commitment to high‑quality, reliable work. Agile and adaptable, thriving in fast‑changing, fast‑paced environments. US Citizenship Required Ability to obtain and maintain a DoD Secret clearance. Availability to work onsite full‑time in Woodland Hills, California. Master's degree or PhD in a STEM field or in technical management. Solid understanding of inertial navigation and related products. Proven track record executing program milestones, including Systems Requirements Review (SRR), System Functional Review (SFR), Preliminary Design Review (PDR) and Critical Design Review (CDR). Active DoD Secret clearance.