Jacobs FAST GN&C Modeling and Simulation Engineer in Houston, Texas

FAST GN&C Modeling and Simulation Engineer


Johnson Space Center is NASA’s hub for human spaceflight. On the Jacobs JETS contract we provide a wide range of GN&C engineering services to JSC. Come join our team and contribute to the design of next generation manned and unmanned spacecraft.

Bring your GN&C modeling and simulation skills to the Flight Analysis and Simulation (FAST) tool. FAST is a generic 3- to 6-DOF multi-body ascent, aerocapture, entry, descent, and landing (A2EDL) simulation code based in the state-of-the-art, object-oriented Trick simulation environment. FAST is currently used to develop Orion trajectory designs, GN&C algorithms, and validate their implementation in flight software. FAST requires improvements to provide flight performance analysis, algorithm development, and flight software contributions for future programs including the Commercial Crew Program, Orion, and missions to the Moon and Mars.

The selected applicant will:

  • Implement improvements and enhance FAST capabilities:

  • Improve the usability of the FAST user interface to simplify prototyping of algorithms and models.

  • Enhance 3- and 6-DOF powered ascent capabilities for lunar and Mars.

  • Create an improved generic optimization capability.

  • Incorporate new vehicle, environment, and aerodynamic models for Commercial Crew and lunar/Mars.

  • Implement heritage and new flight guidance algorithms, control systems, and navigation models.

  • Perform and document model/simulation verification and validation.

  • Achieve Class C certification for use in developing/verifying flight software:

  • Expand unit testing and improve model documentation.

  • Improve on-boarding of new users:

  • Create a detailed user’s guide with example cases of historical vehicles.

  • 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:

This position has been posted at multiple levels. Depending on the candidate's experience, requirements and business needs, we reserve the right to consider candidates at any level for which this position has been advertised.

  • BS degree in engineering from an accredited engineering school and a minimum of five (5) years of related engineering experience, or an MS degree from an accredited engineering school and a minimum of four (4) years of related experience, or Ph.D. from an accredited engineering school and a minimum of zero (0) years of direct engineering experience.

  • Expertise in C/C , Linux, and Python.

  • Experience with the development, verification and validation of 6-DOF GN&C spacecraft simulations.

  • Ability to apply knowledge and experience towards timely completion of technical products and services.

  • Excellent communication skills and the ability to work in a team environment consisting of NASA civil servants and various contractor employees.

  • Strong leadership skills.


  • A Master’s degree in Aerospace Engineering with an emphasis in GN&C principles and orbital/flight mechanics.

  • Experience with:

  • JSC TRICK Simulation Environment.

  • JEOD (JSC Engineering Orbital Dynamics) modeling package.

  • LaTeX.

  • Previous experience with simulation visualization and graphics packages, particularly JSC EDGE or DOUG.

  • Familiarity with MATLAB/Simulink.

  • Experience in product delivery and management utilizing source code management tools such as Jenkins and Git/Gitlab.

Why Work for JETS?

  • Opportunities for growth and advancement

  • Comprehensive Medical Coverage (medical, dental, vision)

  • 401(k)

  • Benefits Tuition Reimbursement

  • Much, much more!

Don’t miss out on this great opportunity; for immediate consideration, apply now! ( http://www.wehavespaceforyou.com/ ).

  • 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 10 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, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status or other characteristics protected by law. Jacobs is a background screening, drug-free workplace.

Primary Location United States-Texas-Houston

Req ID: AS0003J6