GNC Simulation Software Engineer

Job Title:

GNC Simulation Software Engineer

Design, analyze, and implement GNC algorithms and simulations for aerospace vehicles. Maintain and develop analysis tools, regression test scenarios, Monte Carlo framework, and simulation architecture. Perform 6‑DOF modeling, simulation, and performance analysis to evaluate system behavior under both nominal and off‑nominal conditions. Build high‑fidelity dynamic models of vehicles, sensors, actuators, and environmental models. Conduct Monte Carlo analyses and sensitivity studies to validate robustness and reliability.

Validate simulation models against test data and engineering expectations. Use programming languages including C/C++, Python, and Matlab (or similar) to develop simulations. Collaborate with embedded software teams to integrate, test, and verify GNC functionality on hardware‑in‑the‑loop (HIL) systems. Support the development of requirements, interface definitions, and verification plans for flight software.

• Design and implement GNC algorithms and simulations for aerospace vehicles.
• Maintain and develop analysis tools and simulation architecture.
• Perform 6‑DOF modeling, simulation, and performance analysis.
• Build high‑fidelity dynamic models of vehicles, sensors, and actuators.
• Conduct Monte Carlo analyses and sensitivity studies.
• Validate simulation models against test data.
• Collaborate with embedded software teams for GNC functionality integration.
• Support development of requirements and verification plans for flight software.

• 5+ years of software experience.
• 5+ years in the aerospace industry.
• Proficiency in C++ and Python programming.
• Experience with NASA GUNNS and TRICK Simulation Software.
• Flight vehicle experience.
• Proficiency in Simulink and software development.

This is a Contract position based out of Houston, TX.

The pay range for this position is $55.00 - $80.00/hr eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include:

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre‑tax and Roth post‑tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long‑term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

This is a fully onsite position in Houston, TX.

The position is anticipated to close on Jun 12, 2026.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.