GNC Engineer

We are seeking a GNC Engineer with real-time programming experience to support development of 6 degree of freedom (6

DOF) missile simulations for use in a hardware-in-the-loop (HWIL) environment. The candidate will perform software development related to missile simulation implementation, hardware initialization and control, data processing, analysis, and visualization. This role requires practical experience in C and C++ software development on Linux platforms, along with an understanding of missile dynamics, physics-based simulation, and numerical methods. The candidate will be expected to support execution of real-time 6

DOF simulations, perform independent studies of missile performance, and present concepts and results to project engineers and technical working groups.

Pay Range $125,

• Develop, integrate, and maintain 6
  
  DOF GNC simulations for missile and flight vehicle applications in a real-time HWIL environment.
• Implement simulation software for guidance, navigation, and control algorithms, missile dynamics, subsystem behavior, and engagement scenarios.
• Support hardware initialization and control, data handling, analysis, and visualization associated with HWIL simulation execution.
• Perform engineering analysis and system performance studies using simulation outputs to assess vehicle behavior, algorithm performance, and mission effectiveness.
• Build and maintain simulation execution workflows, including configuration management, automated scenario execution, data capture, and regression support.
• Create tools and utilities to run scenarios, log results, process data, and generate engineering reports and presentations.
• Work in Linux development environments, including command-line compilation, remote connectivity, and software integration activities.
• Collaborate with systems, software, and test teams to translate requirements into simulation capabilities and verification coverage.
• Present technical concepts, findings, and recommendations to internal engineering teams and customer technical working groups.
• Bachelor of Science or Master of Science in Engineering;
  Aerospace Engineering preferred but not required.
• Minimum five (5) years of engineering experience related to programming, simulation development, or system performance analysis.
• Strong experience in C and C++ development, preferably in Linux environments.
• Working knowledge of real-time simulations in a hardware-in-the-loop (HWIL) environment.
• Experience with programming for engineering analysis and simulation-based performance assessment.
• General knowledge of flight vehicle dynamics, subsystem function, and 6
  
  DOF execution concepts.
• General knowledge of physics-based simulation and numerical methods.
• Working knowledge of Linux environments, including command-line operations, compiling from the command line, and remote system connectivity.
• Experience using version control tools such as Git.
• Strong written and verbal communication skills.
• Demonstrated ability to work effectively both independently and as part of a multidisciplinary team.

• Experience with Common Simulation Framework (CSF).
• Experience with Red Hawk Linux or other real-time Linux environments.
• Experience writing or contributing to technical reports, briefings, and engineering presentations.
• Familiarity with scientific and simulation visualization tools such as MATLAB and SIMDIS.
• Experience supporting missile simulation, flight dynamics modeling, or GNC algorithm development in laboratory or HWIL settings.
• Familiarity with automated test execution, data reduction, and simulation result visualization workflows.

• U.S. citizenship required.
• Active Secret security clearance required.

• Excellent insurance coverage
• 401(k) match
• Generous PTO
• Health and wellness incentives
• Tuition and certification reimbursement
• Countless opportunities to give back to the community through i3 Cares