Guidance, Navigation and Control Engineer for Flight Systems

Job DescriptionThe Defense Sector at Leidos currently has an opening for Guidance, Navigation and Control Engineer to work in our Huntsville, AL office. This is an exciting opportunity to support rapid development for guidance and control of air, land, and sea launched flight systems. Leidos is expanding the guidance and control team due to recent growing programs, such as the AGM-190/A Small Cruise Missile, DoW Low Cost Containerized Munition, US SOCOM GBU 69/B Small Glide Munition, multiple Hypersonic Missile programs, MDA Low Cost Interceptor, and other rapid development efforts.Job responsibilities include development and analysis of guidance, navigation and autopilot algorithms, implementation of these items in 6-DOF simulations and operational flight software. Additionally, the candidate should be capable of conducting trade studies for design decisions, developing techniques to assess, validate and verify performance, and supporting flight tests with pre-flight predictions and post-flight analyses.Basic qualifications for the position include a bachelor’s degree in engineering or physics and 12 years of work and experience (or Masters and 10) in areas such as state estimation algorithms, GPS navigation techniques, feedback control system design, trajectory optimization, guidance, and/or optimal estimation with knowledge of basic aerodynamic principles. Must be able to obtain and maintain a Secret clearance.Strong math skills are required in the areas of linear algebra, matrix math, statistics, trigonometry and coordinate transformation. Candidates must be experienced in MATLAB and Simulink programming. Candidates must also possess solid technical communication skills and an ability to work in both collaborative team environments and independently.Candidates must be a resident of the North Alabama area or willing to relocate in order to work on-site at the Huntsville, AL office.Preferred qualifications include familiarity and experience with Department of War digital engineering paradigm, experience with flight vehicles, guided munitions and/or unmanned aerial systems. Masters degree or doctorate in engineering or physics is strongly desired. Current active Secret or higher level clearance. Experience in terrestrial navigation, SAASM, M-Code, and GPS-denied operations are also desired.If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.Original Posting:September 24, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.Pay Range:Pay Range $131,300.00 - $237,350.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.SummaryLocation: Huntsville, ALType: Full time