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The Amentum Space Exploration Division is looking for a motivated individual to support the development of physics-based simulation software in support of the Space Launch System (SLS) integrated avionics test facilities (IATF) at Marshall Space Flight Center. The ideal candidate will have a background in simulation development and be proficient in programming, specifically in C. This position requires a solid understanding of software development for real-time operating systems and environments.
The selected applicant will work on a customer/contractor integrated team to:

• Design, development, and test models for hardware-in-the-loop testing of avionics and flight software.
• Participate in a software development environment.
• Create and present detailed software designs.
• Conduct and participate in design and code reviews.
• Produce weekly and monthly status reports of progress in assigned areas.

Qualifications:

• Bachelor's, Master's, or PhD degree in Aerospace, Mechanical, Computer Engineering or equivalent
• 10+ years of experience.

Experience and proficiency in:

• Intermediate to advanced proficiency in software development in C/C++.
• Proficiency in software development in Python.
• Simulation development using Matlab/Simulink.
• Design, development, and test of models and simulations for hardware-in-the-loop testing of avionics and flight software.
• Time-domain 6-DOF vehicle simulation experience
• Previous experience with the ARTEMIS simulation environment is desirable.
• Modeling using numerical methods and analysis (desirable)
• Software development targeted for real-time operating systems and environments.
• Modeling and simulating space vehicle subsystems.
• Developing of software targeted for Linux distribution, especially RedHat Enterprise Linux or derivatives distributions.
• Proficiency working with Unix/Linux (unix-like OS structure, file system, shell, secure shell)
• Exposure to software development tools such as Git.
• Ability to communicate professionally with customers, stakeholders, and cross-organizational teams.

Essential Functions
Work Environment:
Office environment. Requires ability to provide clear, concise, accurate and timely communication, both verbally and in writing (100%). Requires ability to interact professionally with co-workers, management, and client (100%). Requires travel in the domestic USA (5%). Requires ability to work at a computer for long periods of time (100%).
Physical Requirements:
Requires sitting for extended periods of time in meetings with peers, management, and with our client at NASA facilities to discuss technical issues (10%). Also, requires sitting for extended periods of time at a desk to write reports and perform engineering tasks (80%). Requires ability to use stairs or elevators for access between floors and multiple buildings at NASA and our facilities (10%).
Equipment and Machines:
Requires ability to operate a personal computer, a telephone, fax machine, copier, calculator, and other general office equipment (100%).
Attendance:
Normal workday 7:30-4:30, Monday thru Friday. Minimal overtime may be required (10%) to meet schedule milestones and to support technical demands of the job. Regular attendance is a necessity, and adequate arrangements for delegating duties during absences are required.
Other Essential Functions:
The ability to work independently with minimal supervision, and to make rational decisions, and to exercise good judgment is essential (100%). Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others.
Proof of U.S. Citizenship is required.
#ESSCA #ASED #Amentum
Compensation Details:
SME1
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:
05/26/2026 - 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.