Senior GNC Engineer

Castelion Corporation•Rio Rancho, NM

1d•Onsite

About The Position

We are seeking a Senior GNC Engineer to develop guidance, navigation, and control solutions for Castelion's long-range hypersonic strike vehicles. This role is critical to enabling stable, precise, and adaptive flight performance across all mission phases. You will work hands-on with multidisciplinary engineering teams to design, analyze, implement, and validate control and autopilot algorithms in a fast-paced, hardware-driven environment.

Requirements

Bachelor's, Master's, or PhD in Aerospace Engineering, Electrical Engineering, or related field
5+ years of experience in control system design, analysis, and validation for aerospace or high-performance dynamic systems
Strong background in classical and modern control theory, including adaptive, nonlinear, and robust control methods
Experience developing autopilot algorithms for missiles, rockets, hypersonic vehicles, or similar systems
Proficiency in modeling and simulation tools such as MATLAB/Simulink or equivalent
Experience with 3DOF and 6DOF simulation environments and real-time control implementation
Familiarity with flight software integration and real-time embedded systems
Strong problem-solving mindset, thriving in a fast-paced, hardware-rich, high flight cadence environment
U.S. citizenship is required
Ability to obtain and maintain a U.S. government–issued security clearance

Responsibilities

Design and develop flight control and autopilot algorithms for high-speed flight vehicles across atmospheric and exo-atmospheric regimes
Develop and implement advanced control strategies, including adaptive and robust control methods, to ensure performance under uncertain and dynamic conditions
Conduct modeling, simulation, and analysis (3DOF/6DOF) to evaluate control system performance, stability, and robustness
Work closely with avionics, flight sciences, mechanisms, and flight software teams to integrate control algorithms into real-time embedded systems
Support hardware-in-the-loop (HIL) testing, flight testing, and post-flight analysis, translating results into system-level improvements
Analyze vehicle dynamics, actuator behavior, and sensor characteristics to inform control system design and tuning
Develop tools and frameworks for control system design, verification, and validation
Mentor junior engineers and contribute to best practices in GNC and control system development
Partner closely with program leadership to make technical trades aligned with mission success