Guidance, Navigation & Controls (GN&C) Engineer

• Contribute to the design architecture development and verification testing of the GN&C system for the Lunar Data Network (LDN) spacecraft constellation.
• Develop test and peer-review high-reliability GN&C flight software and control algorithms written in C and C.
• Support the selection trade studies procurement and integration of specialized deep-space GN&C sensors and effector systems.
• Execute maintain and analyze 6-DOF (Degrees of Freedom) simulations and Monte Carlo profiles to evaluate expected on-orbit performance and trajectory stability in cislunar space.
• Support navigation HWIL (Hardware-in-the-Loop) and SWIL (Software-in-the-Loop) sensor and effector integration and testing for the LDN satellite constellation.
• Assist in real-time flight software development testing and implementation of autonomous fault-tolerant recovery logic for navigation anomalies.
• Incorporate relative navigation image processing or feature detection techniques to support operations where traditional Earth-based GPS is unavailable.
• Collaborate closely with cross-functional engineering teams across software hardware and mission operations systems.
• Document software architectures design trades and simulation results in clean technical reports and presentations.
• Other duties as assigned.

• Strong interpersonal communication and technical documentation skills with an ability to communicate complex data clearly and effectively.
• High level critical thinking mathematical reasoning and a detail-oriented engineering mindset.
• Ability to work independently or adapt quickly as part of a multi-disciplinary fast-paced space systems team.

• Bachelors or Masters Degree in Aerospace Engineering Electrical Engineering or a highly related field plus 35 years of relevant experience.
• 35 years of direct experience writing flight or simulation software in C C and/or Python.
• Proven experience developing tuning and implementing Extended Kalman Filters (EKFs) or sequential filters for spacecraft state estimation.
• Familiarity with deep-space or satellite GN&C hardware architectures including IMUs Star Trackers Reaction Wheels and Thruster clusters.
• Experience with relative navigation Optical Navigation (OpNav) or feature detection techniques optimized for lunar or planetary environments.
• Foundational knowledge of spacecraft rigid-body dynamics attitude determination and orbital mechanics (specifically multi-body or cislunar trajectories).
• Experience utilizing SWIL and/or HWIL testbeds to integrate and calibrate physical sensor packages.
• Experience working with JIRA Git version control and Agile development methodologies.

• Familiarity with VxWorks RTEMS or other Real-Time Operating Systems (RTOS) used in aerospace applications is a strong plus.
• Prior experience contributing to GN&C engineering efforts on operational spacecraft or satellite programs.
• All candidates selected will be subject to a background investigation and drug screen.
• To conform to U.S. Government International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen lawful permanent resident of the U.S. protected individual as defined by 8 U.S.C. 1324b(a)(3) or eligible to obtain the required authorizations from the U.S. Department of State.

• Prolonged periods standing or walking on hard surfaces.
• Ability to travel <10%.
• Ability to lift up to 30 lbs.
  

Required Experience:

IC