Demo

Spacecraft Trajectory Engineer GNC/6DOF - Software Simulation Development

Associates Systems LLC
Houston, TX Full Time
POSTED ON 5/29/2026
AVAILABLE BEFORE 7/28/2026
Aerospace Engineer
Trajectory GNC/6DOF experience along with simulation software exp
US citizen or permanent Resident
All qualified resumes will be responded to in 24 hours or less
ONSITE in Houston Texas.  Remote work is not available for this position.
Multiple compensation options are available including salary with employer sharing some benefits costs  (health, dental, vision) to hourly consultant options.  Salaries start at 130k and will increase based on exp.  Consultant hourly rates will start at 75hr and increase based on experience.

Description: 
This position will work on a flight software Development and Analysis Team, which provides software development and analytic support for a variety of spacecraft and commercial programs using the Flight Mechanics Simulation tool. The selected applicant will:
  • Provide software development and scripting of NASA's Genesis Flight Mechanics Simulation tool and related applications.
  • Design and execute analyses to compare the performance of different guidance algorithms.
  • Demonstrate the use of Core Flight Systems (cFS) in Genesis
  • Develop, integrate, and test new algorithms for evaluation of vehicle and mission performance.
  • Integrate Genesis with Core Flight Systems and other trajectory software and tools.
  • Develop requirements documentation for mission design products.
  • Provide recommendations for improvements in design and software development processes.
  • Perform other duties as required.​

Qualifications  Typically requires a bachelor's degree in Engineering and a minimum of 2- 5 years of experience in the field or in a related area.  Aerospace Engineering degree is highly preferred.
  • Experience with orbital mechanics and designing spacecraft trajectories.
  • Experience with the development of spacecraft mission design algorithms.
  • Experience analyzing spacecraft performance.
  • Experience with 6-DOF spacecraft simulations.
  • Proficiency in C , Python, and Linux
  • Experience in product delivery utilizing source code management tools such as Git/GitLab
  • Experience developing, verifying, and validating simulation models.
  • Excellent communication skills
  • Able to work in a team environment consisting of spacecraft civil servants and contractor employees.
  • Strong interpersonal skills to enable successful performance in a collaborative engineering team.
  • Ability to organize and prioritize tasks to meet deadlines and schedules with limited supervision.
  • Ability to prepare written documents and to verbally present at various meetings.
  • Experience with Microsoft Office products.​

Salary.com Estimation for Spacecraft Trajectory Engineer GNC/6DOF - Software Simulation Development in Houston, TX
$88,022 to $104,655
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