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Guidance​/Navigation​/Control Engineering Sr - E3 with Security Clearance

Job in Littleton, Arapahoe County, Colorado, 80120, USA
Listing for: Lockheed Martin
Full Time position
Listed on 2026-08-21
Job specializations:
  • Software Development
    C++ Developer, Software Engineer, Robotics, Embedded Software Engineer
Job Description & How to Apply Below
Job Number 1220 Standard

Job Description 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 thats built for you

About the Role:

Come join the growing Theater Strike Weapon System program portfolio, including Conventional Prompt Strike, Hypersonic Weapon Systems, Advanced Glide Systems, Hypersonic Payload Delivery systems, and other new and dynamic programs. In this role as a GNC engineer, you may be involved in many of the following activities:
• Apply missile guidance, navigation, and control expertise to algorithm development, signal and data processing, modeling, and simulation
• Integrate Matlab/Simulink models into a 6-DOF C++ simulation
• Develop high fidelity models and simulation software
• Develop new source code in C++ and Python
• Modify code in C++, C, Matlab, Simulink, Fortran, Python, Linux shell, and YAML
• Create unit tests
• Implement simulation software on a high performance computing cluster including Linux systems or VMs
• Work in an Agile Dev Ops environment with Docker/Container and Kubernetes deployment
• Collaborate with the performance critical thinkers, Flight Software team, and customer Proficient in AI prompting as it applies to this position and practice Successful applicants generally have a minimum of 4+ years of related experience and may have a post-secondary degree or training in a related discipline. 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.

Navigation functions include the statistical processing of measured data points and their substitution into algorithms simulating physical reality. Guidance functions include the formulation of specific equations and control laws to achieve a desired position in space. Control design and analyses processes consist of the development of the control requirements for aircraft, launch vehicles and/or spacecraft. Basic Qualifications Basic Qualifications :
Skill Requirements:
• Broad technical skills such as rigid body dynamics, control theory, and/or computer programming.
• Proven experience using MATLAB and/or Simulink for simulation and analysis of feedback control systems, closed loop guidance, or navigation algorithms.
• C/C++ programming experience
• Demonstrate strong math skills in the areas of linear algebra, matrix math, statistics, trigonometry, and/or coordinate transformation.
• Ability to clearly document analysis results in presentation slides and engineering memos
• Ability to work in a fast-paced, collaborative team environment. Security Clearance / Work Authorization:
• To meet requirements of the program/customer, this position requires the selected employee to be a U.S. Citizen.
• Applicants must be able to obtain Final Secret clearance to be considered qualified. Final Secret clearance is required to prior to start.
• Selected candidates will be required to maintain a minimum level, government issued Secret clearance for long term employment on this program. Desired Skills Desired skills :
• Experience with simulations and physics-based modeling
• Experience with state estimation and navigation algorithms, including Extended Kalman Filters
• Experience with kinematics using Euler Angles and Quaternions
• Experience with autopilot design and linear stability analysis
• Familiarity or experience with missile defense systems or fire control
• Experience with C++ development and Gitlab
• Experience with FORTRAN and 6

DOF simulations…
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