HLS GN&C Flight Simulation Engineer

Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you! We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are excited about what we do, and we need you on our team as we take on exciting challenges for NASA’s pursuits in deep space exploration. Amentum is NASA’s largest engineering solutions provider working together with NASA at centers across the United States. Our long-term client relationship with NASA has led to a need for a Human Landing System (HLS) Flight Control Simulation Engineer with a JETS II teammate company, Aerodyne Industries. This position will work with the NASA and JETS engineers to develop and maintain a 6-DOF Guidance, Navigation, and Control (GN&C) simulation in support of the NASA HLS Program and will focus primarily on the development of flight control system algorithms for both automated and piloted manual flight of lunar lander vehicles. This HLS simulation is being developed to assist in the design and development of a crewed digital manual control system, prototyping Displays and Controls, and assessment of human-in-the-loop handling qualities. ** We are actively searching for qualified candidates for this potential opening; however, we do not have assurance at this time when the position will be finalized and opened. Because we have strong reason to believe the position will be approved soon, we are proceeding with identifying qualified candidates and conducting interviews. ** The selected applicant will: Provide math modeling and simulation development of guidance and flight control algorithms for automatic and piloted manual flight of lunar landers 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 Requisition Qualifications: 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. Requires a bachelor's degree in Engineering with experience in the field or in a related area. Experience in the development of flight control systems for aerospace vehicles Experience developing, verifying, and validating GN&C math models and 6-DOF simulations Experience with Linux, C/C++ and Python Experience modeling and analyzing dynamic systems in the frequency domain. Familiarity with system identification and building linear models from time-domain measurements. Ability to organize and prioritize tasks in order to meet deadlines and schedules with limited supervision 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 Aerospace Engineering with on a focus on GN&C and flight controls Knowledge of GN&C principles with a background in flight dynamics/orbital mechanics Knowledge in the design, analysis, and implementation of navigation algorithms Experience contributing to large, multi-language simulation and architectures and ability to learn unfamiliar code bases. Experience with GIT configuration control tool. Why Join Our Team? In addition to exciting career opportunities, we also have: Excellent personal and professional career growth 9/80 work schedule (every other Friday off), when applicable Onsite cafeteria (breakfast & lunch) Much, much more! For more information on our partnership with NASA at Johnson Space Center (JSC), please visit Must be able to complete a U.S. government background investigation. Management has the prerogative to select at any level for which the position is 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.). Attendance 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. Other Essential Functions 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. #JETS #JETSII Compensation Details: EN1-ESS The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws. Benefits Overview: Our health and welfare benefits are designed to support you and your priorities. Offerings include: Health, dental, and vision insurance Paid time off and holidays Retirement benefits (including 401(k) matching) Educational reimbursement Parental leave Employee stock purchase plan Tax-saving options Disability and life insurance Pet insurance Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits. Original Posting: 06/25/2026 - Until Filled Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs. Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters .