GN&C Modeling and Simulation Developer - (AER0005BF)

  • Jacobs
  • Primary Location: United States-Texas-Houston-20331-ESCG
  • Dec 01, 2020
Full time Construction

Job Description



Are you passionate about human space exploration or understanding the origins of the universe, and working with a dynamic and diverse team to make a difference?  If you are, we need you! 


We need your commitment, teamwork, and energy to help us achieve great things that inspire humans all over the globe.  We need you to bring innovative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will benefit the quality of life of people around the world.  We are excited about what we do, and we need you on our team as we take on new challenges for NASA’s pursuits in deep space exploration.  Jacobs is NASA’s largest engineering solutions provider working alongside NASA at centers across the United States.


We have the unique and significant role to partner with NASA at Johnson Space Center (JSC), to be part of every human spaceflight program – the International Space Station (ISS), NASA’s Orion spacecraft, which will carry astronauts into deep space, and Gateway, the orbiting platform providing the home for astronauts to work and travel back and forth to the moon’s surface, and serving as the platform for deep space exploration.  From critical systems on the ISS to enable astronauts to live and work in space; to performing advanced development for systems leading to deep space exploration; to being part of the foundation for Gateway. 


We also partner with NASA at JSC, the only NASA center in the United States to curate all astromaterial samples returned from exploration missions, to perform curation services, orbital debris analysis, and basic research to further humankind’s understanding of the origins of our solar system.


We need you to be a part of our team!


Our long-term client relationship with NASA has led to a need for a Guidance, Navigation, and Control (GN&C) Modeling and Simulation Developer with GeoControl Systems, Inc., a JETS teammate company.  

This position will work with the JETS engineers developing 6-DOF Guidance, Navigation, and Control (GN&C) simulations in support of various NASA programs including the Commercial Crew Program (CCP), Gateway, and the Human Landing System (HLS). These simulation tools are being developed to assist in the design, development, and oversight of the respective GN&C systems including ascent, entry/descent/landing, orbit, and rendezvous proximity operations mission scenarios.   


The selected applicant will:

  • Provide math modeling and simulation development, integration and testing of spacecraft GN&C systems
  • Develop formal math model and simulation documentation
  • Identify team simulation tasks, resolve simulation related issues and assist team members.
  • Directly interact with the NASA customers, along with various NASA support contractors, during technical meetings and working groups.
  • Perform other duties as required.

Required Education/Experience/Skills:



A Bachelor's degree in a computer or system science discipline from an ABET accredited college or university with five (5) years of relevant experience, or a Master's degree in a computer or system science discipline and four (4) years of relevant engineering experience, or a Ph.D. in a computer or system science discipline and zero (0) years of related experience.



Skills and experience should demonstrate: 

  • Experience developing, verifying, and validating math models and 6-DOF simulations.
  • Experience with Linux, C/C++ and Python.
  • Experience with version control systems.
  • Ability to apply knowledge and experience towards timely completion of technical products and services.
  • Ability to learn and work independently.
  • Excellent communication and documentation skills and the ability to work in a team environment consisting of NASA civil servants and various contractor employees.

Requisition Preferences:  

  • MS in Computer Science, Mathematics, or physics.
  • Knowledge of GN&C principles with a background in flight dynamics/orbital mechanics.
  • Experience with the NASA/JSC TRICK simulation architecture and GIT configuration control tool.
  • Previous experience with simulation visualization and graphics packages, particularly JSC EDGE or DOUG.
  • Knowledge of MATLAB and Simulink/Stateflow tool boxes.
Why Work on Our Team?
Click on the below links to view just a small sample of all that we do!  Come join our team and be part of our future.  We look forward to seeing you!
(please open in Chrome or Microsoft Edge)
In addition to exciting career opportunities we also have:
  • Excellent personal and professional career growth
  • 9/80 work schedule (every other Friday off)
  • Onsite cafeteria (breakfast & lunch)
  • Comprehensive Benefit Package (medical, dental & vision)
  • 401(k)
  • Tuition Reimbursement
  • Much, much more!
  For more information on our partnership with NASA at Johnson Space Center, please visit
  • Must be a U.S. Citizen and successfully complete a U.S. government background investigation.
  • Management has the prerogative to select at any level for which this position has been advertised.
Essential Functions
Work Environment
Generally an office environment, but can involve inside or outside work depending on task.
Physical Requirements
Work may involve sitting or standing for extended periods (90% of time). May require lifting and carrying up to 25 lbs. (5% of time).
Equipment and Machines
Standard office equipment (PC, telephone, printer, etc.).
Regular attendance in accordance with established work schedule is critical. Ability to work outside normal schedule and adjust schedule to meet peak periods and surge requirements when required.
Other Essential Functions
Must be able to work in a team atmosphere. Must put forward a professional behavior that enhances productivity and promotes teamwork and cooperation. Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others. 
 Jacobs is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, religion, creed, color, national origin, ancestry, sex (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, medical condition, marital or domestic partner status, sexual orientation, gender, gender identity, gender expression and transgender status, mental disability or physical disability, genetic information, military or veteran status, citizenship, low-income status or any other status or characteristic protected by applicable law. Learn more about your rights under Federal EEO laws and supplemental language. 

Primary Location

: United States-Texas-Houston-20331-ESCG

Job Posting

: Nov 25, 2020, 1:26:35 AM


: Aerospace



Job Type

: Experienced
Job Classification: Full-Time Regular

Work Locations

2224 Bay Area Boulevard 
 Houston 77058
Capabilities: Aerospace Technology and Defense Programs and Facilities