GN&C Controls Engineer

Moonshot Aerospace is seeking a GN&C Controls Engineer to provide navigation and communications services for lunar missions. This role owns GN&C system performance from early architecture and design through flight operations and provides technical leadership to the GN&C team supporting the mission. This position requires significant depth in spacecraft GN&C design, analysis, and implementation, with the ability to lead development efforts across a complex, multidisciplinary mission. The engineer will drive GN&C architecture and requirements, guidance and navigation algorithm development, control law design and tuning, and verification closure, while coordinating closely with avionics, propulsion, structures, software, and systems engineering teams. Responsibilities Design spacecraft GN&C system architecture, requirements definition, and design, including attitude control, vehicle stabilization, and pointing Develop and oversee GN&C algorithms, perform stability and performance analysis (gain/phase margins, Bode, Nyquist, root locus), and support sensor selection Build and maintain 6DOF simulation development and Monte Carlo performance assessments for control system design verification across all mission phases Support multi-body dynamics modeling for docking, descent, and landing operations in lunar mission scenarios Perform control system verification closure, performance, and margins for compliance with requirements and flight/operational readiness Develop and analyze propulsion system control interfaces, including delta-velocity command and thrust vector control, and support actuator sizing Support flight software integration and testing of control algorithms, including hardware-in-the-loop (HIL) and software-in-the-loop (SIL) test activities Contribute to technical documentation, design reviews, and customer deliverables, including design descriptions, analysis reports, and verification plans Collaborate with prime contractor, and subcontractor engineering teams Required Qualifications U.S. Citizenship and ability to obtain and maintain a security clearance B.S. in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, or related field 5+ years of professional experience in spacecraft or aerospace vehicle control system design and analysis Demonstrated experience with multivariable control system design techniques Proficiency in MATLAB/Simulink for control system analysis and simulation Experience with 6DOF simulation development and execution Understanding of spacecraft dynamics, rigid body mechanics, and actuator systems Preferred location in the Houston, TX or Huntsville, AL area; remote work may be considered Effective written and verbal communication skills Preferred Qualifications M.S. or Ph.D. in Aerospace Engineering, Mechanical Engineering, Controls, or related field Experience supporting NASA lunar or human spaceflight programs (HLS, Orion, SLS, ISS) Experience with navigation filtering and sensor fusion for deep-space or cislunar missions Descent and landing control system design Flight software development or integration experience (C/C++) Hardware-in-the-loop (HIL) and software-in-the-loop (SIL) test campaign experience Active security clearance (Secret or above) Launch vehicle or satellite control system experience Technical publication or conference presentation history