Guidance, Navigation & Control Engineer II - Secret clearance

Reference: 729226BRPosted: 2026-05-26Location: King of Prussia, PennsylvaniaClearance: SecretCompany: Lockheed MartinDescription:About Lockheed Martin Space:Space is a critical domain, connecting our technologies, our security, and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire, and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity.Join us in shaping a new era in space and find a career that's built for youAbout the Role:At Lockheed Martin Space, a GNC Engineer typically designs, develops, implements, verifies and tests algorithms to perform guidance, navigation and control of aircraft, spacecraft, launch vehicles and upper stages during powered and coast phases of flight, earth orbit, interplanetary cruise and orbital insertion, as well as during staging events.• Guidance functions include the formulation of specific equations and control laws to achieve a desired position in space. • Navigation functions include the statistical processing of measured data points and their substitution into algorithms simulating physical reality. • Control design and analyses processes consist of the development of the control requirements for aircraft, launch vehicles and/or spacecraft.Successful applicants generally have a minimum of 1+ years of related experience and may have a post‑secondary degree or training in a related discipline.Basic Qualifications:Skill Requirements:• Demonstrated experience using MATLAB and/or Simulink for planning and conducting system performance and simulation analysis.• Knowledge of system design and flight vehicle architectures.Security Clearance / Work Authorization:• To meet requirements of the program/customer, this position requires the selected employee to be a U.S. Citizen.• Active Secret clearance is required to prior to start, and is the minimum level to be considered qualified. • Selected candidates must maintain a Secret clearance for long term employment on this program.Desired Skills:• Master's degree in a related discipline from an accredited university• Excellent written and verbal communication skills• Experience in hypersonic vehicle design and reentry vehicle systems• Experience with navigation, controls, and guidance algorithm development• Experience in requirements definition and verification• Strong interpersonal skills• Demonstrated ability to build effective relationships with team members• Demonstrated ability to work in cross-functional teams to resolve technical issues• Ability to work in a fast-paced, collaborative team environment• Active DOD Secret security clearanceSecurity Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.Clearance Level: SecretOther Important Information You Should KnowExpression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.Ability to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.Work Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.Schedule for this Position: 9x80 every other Friday offLockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.If this sounds like a culture you connect with, you’re invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.Experience Level: Experienced ProfessionalBusiness Unit: SPACERelocation Available: PossibleCareer Area: Guidance, Navigation and ControlType: Full-TimeShift: First