Guidance, Navigation & Controls Engineer - Spacecraft Flight Control Systems

Guidance, Navigation, & Controls Engineer

Spacecraft Flight Control Systems

On-site in El Segundo, CA

Target salary range: $123,000 - $198,750

We are hiring a Guidance, Navigation & Controls (GNC) Engineer to support the design, development, integration, and delivery of spacecraft Guidance, Navigation & Control (GNC) subsystems for advanced satellite and space programs. This role involves GNC analysis, Flight Control Software (FCSW) development, spacecraft integration and test (I&T), control system design, sensor and actuator selection, and technical leadership while supporting mission-critical aerospace and national security programs requiring a U.S. Top Secret security clearance.

Responsibilities:

• Lead delivery of the complete Guidance, Navigation & Control (GNC) subsystem, including hardware, software, algorithms, and analytical products for satellite programs.
• Serve as the Responsible Engineering Authority (REA) for one or more spacecraft programs or as the GNC technical focal across multiple programs.
• Perform spacecraft GNC subsystem design, modeling, analysis, Flight Control Software (FCSW) development, and verification activities.
• Develop control algorithms and evaluate system performance to ensure compliance with mission and spacecraft requirements.
• Select and integrate spacecraft sensors and actuators to support mission objectives.
• Manage GNC subsystem execution within program cost, schedule, and technical performance objectives.
• Identify technical risks, develop mitigation strategies, and communicate execution status to program leadership.
• Collaborate with Systems Engineering, software, hardware, manufacturing, integration & test (I&T), and program management teams to ensure system-level performance.
• Support satellite integration, environmental testing, launch preparation, and on-orbit mission operations.
• Lead, mentor, and provide technical direction to GNC engineering teams by decomposing complex technical efforts into executable work packages.
• Support mission architecture, system design reviews, verification planning, and lifecycle engineering activities.

Qualifications:

• US Citizenship required by Federal Law.
• Ability to obtain a U.S. Top Secret Security Clearance after hire.

• Bachelor's degree and 5+ years of related engineering experience, or an equivalent combination of education and experience.
• Minimum 3+ years of Guidance, Navigation & Control (GNC) engineering experience.
• Minimum 1+ year of spacecraft or satellite system-level engineering experience.
• Minimum 1+ year collaborating with cross-functional engineering organizations and program leadership.
• Experience with spacecraft Guidance, Navigation & Control fundamentals.
• Experience performing spacecraft GNC analysis, subsystem design, software development, verification, and systems integration.
• Experience working across multidisciplinary aerospace engineering teams throughout the program lifecycle.

Preferred Qualifications:

• Bachelor's degree with 9+ years of related engineering experience (Level 4).
• Active TS/SCI security clearance.
• Experience supporting satellite Integration & Test (I&T) and on-orbit mission operations.
• Advanced knowledge of spacecraft kinematics, dynamics, classical control theory, and modern control systems.
• Experience performing complex GNC analyses using commercial or internally developed engineering tools.
• Experience developing Flight Control Software (FCSW) and spacecraft control algorithms.
• Experience leading technical teams and serving as a Responsible Engineering Authority (REA).
• Demonstrated ability to decompose complex engineering efforts into executable technical tasks.
• Experience with project execution, cost and schedule management, and technical risk management.
• Experience establishing engineering processes, technical standards, and best practices.
• Proven mentoring and technical leadership experience.
• Experience with spacecraft architecture development, system integration, trade studies, and mission analysis.

Moseley Technical Services, Inc. is an AA/EEO/Veterans/Disabled Employer

Moseley Technical Services, Inc. (Moseley) was incorporated in 1994 to provide engineering and professional services to the aerospace/defense, manufacturing, government, and commercial industries. Our Mission is to deliver superior service to our customers and employees. We have achieved our vision by building long-term relationships with customers and employees through integrity, transparency, and appreciation.

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