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Guidance, Navigation & Controls Engineer Spacecraft Flight Control Systems


Job Location:

El Segundo, CA - USA

Monthly Salary: $ 123000 - 198750
Posted: 22 August 2026 (8 hours ago)
Application Deadline: 19 November 2026
Vacancies: 1 Vacancy

Job Summary

Check out this new opportunity!

Guidance Navigation & Controls Engineer

Spacecraft Flight Control Systems

On-site in El Segundo CA

Target salary range: $123000 - $198750

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.
  • Bachelors 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:

  • Bachelors 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

What to Expect

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.

We stand by our 30-year-old commitment of World Class Service. World Class Company.


Required Experience:

IC