Principal Systems Engineer; GNC Analyst

Raytheon is seeking a Principal Systems Engineer-Guidance, Navigation, and Control Analyst (GNC) in Pasadena, California!

• This role is critical for the risk reduction and requirement-definition phase of the project's mechanisms. High-fidelity modeling of electromechanical actuators and sensors is required to validate designs against testbed data and to inform the specifications of future hardware iterations.
• Distill complex models into low-fidelity versions for integration into larger system-level simulations.
• Provide rapid-turnaround study results for sponsors and maintaining long-term, high-fidelity simulation infrastructure.
• Responsibilities include, but are not limited to:
• High-Fidelity Modeling:
  Maintain, modify, and develop high-fidelity behavioral simulations of electromechanical actuators and sensors.
• Model Validation:
  Tune and validate simulations against actual testbed data to ensure physical accuracy.
• Risk Reduction & Requirements:
  Utilize high-fidelity models to conduct risk reduction activities and establish technical requirements for future versions of mechanisms.
• System Integration:
  Create and maintain low-fidelity "surrogate" models that approximate actuator behavior for use in larger, integrated system simulations.
• Study Support:
  Execute rapid-turnaround tasks (2–3-week cycles) to support sponsor-driven studies, delivering results via plots and presentations.
• Simulation Maintenance:
  Provide ongoing maintenance and updates to the project’s primary simulation environment to ensure stability for other project stakeholders.
• Vendor Technical Integration:
  Participate in vendor meetings and technical reviews to absorb critical design information, ensuring that behavioral models accurately reflect external hardware and software specifications.
• Technical Versatility:
  Act as a flexible resource within a small team, providing overlap and support for other GNC functions as bandwidth requires.
• Communication:
  Translate complex simulation data into clear, concise plots and PowerPoint presentations for internal and external stakeholders.

• Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 8 years of prior engineering experience.
• Experience in Matlab , Simulink and the C programming language.
• Experience in signal processing
• Experience developing clear and adaptable models of complex electromechanical systems.
• Experience with high-bandwidth mechatronics and dynamics.
• Experience in the research and development of precision pointing systems.
• Experience working directly with external vendors and hardware suppliers.
• An active and transferable TS/SCI CI Poly U.S. government issued is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for the required security clearance.

• Work in a complex multi-task, schedule-driven environment.
• Perform effectively with minimal day-to-day oversight
• Advanced degree

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value:
  Trust, Respect, Accountability, Collaboration, and Innovation.
• Not Relocation Eligible – Relocation assistance not available