Guidance Navigation & Control Engineer IV (Staff) - Interim Top Secret

Role Responsibilities Report directly to the GN&C Manager within the GN&C Talent Center organization. Serve as a Line of Sight (LOS) Subject Matter Expert (SME) focused on optical LOS jitter analysis for precision‑pointing spacecraft. Support multiple satellite bus families, including the LM400 and LM2100 series. Contribute to GN&C subsystem architecture, systems engineering, disturbance modelling, and space vehicle jitter testing. Generate requirements, perform early program design and analysis, and conduct structural, damping, and dynamics modelling. Analyze time‑ and frequency‑domain LOS jitter, develop accuracy budgets, and model uncertainty factors. Integrate findings with flight software development and participate in dynamometer and on‑orbit testing. Collaborate effectively in a fast‑paced, dynamic, and cross‑functional team environment. Qualifications Advanced domain experience in spacecraft controller design and optimization. Proficiency in developing, verifying, and simulating performance of models using MATLAB/Simulink and C++. Expertise in LOS modeling and analysis, particularly optical LOS jitter for precision‑pointing spacecraft. U.S. citizenship and an Interim Top Secret clearance to be considered qualified. Ability to obtain and maintain a government‑issued Top Secret clearance for long‑term employment. Desired Skills Experience with CORESIM tools. Flight software development experience and autocode to C++ or Python. Proficiency with attitude determination and Kalman filtering. Multi‑body dynamics modeling experience. Familiarity with a GN&C hardware suite for space applications. Domain experience in dynamics modeling and finite element modeling. Experience with LOS accuracy budgets and disturbance modelling. Comprehensive knowledge of the spacecraft program life cycle, from requirements generation to testing. Strong communication skills for articulating complex technical issues to peers, management, subcontractors, and customers. Security Clearance / Work Authorization Must be a U.S. citizen. Interim Top Secret clearance is required for qualification; final clearance must be obtained and maintained. #J-18808-Ljbffr Lockheed Martin