Flight Mechanics & Simulation Engineer

Amentum Holdings, Inc.; Huntsville (AL); On-site; USD 110,000 - 165,000; Full time

Benefits offered by this job

Health insurance

Paid time off

401(k) matching

Educational reimbursement

Parental leave

Employee stock purchase plan

Job summary

Amentum Space Exploration Division (ASED) is seeking a qualified candidate to support NASA’s Flight Mechanics and Mission Analysis teams at NASA’s Marshall Space Flight Center. The role focuses on developing 6-DOF simulations and performing trajectory analyses to support the Space Launch System program.

Ideal candidates will have ABET-accredited aerospace engineering credentials with 5–10 years of experience, strong C programming skills, and experience with Monte Carlo methods. U.S.

Qualifications

• Requires BS in Aerospace Engineering (ABET-accredited) with 5–10 years of relevant experience.
• Strong 6-DOF modeling and simulation of missile systems or launch vehicles.
• Proficient in C programming, independent work with minimal supervision.

Responsibilities

• Develop, maintain, and evaluate 6-DOF simulation models for launch vehicles or missile systems.
• Perform flight mechanics and trajectory analyses using advanced simulation tools.
• Execute Monte Carlo and statistical analyses to assess performance and robustness.
• Validate simulation models and assess dynamics across flight regimes.
• Create and improve standalone analysis tools to evaluate system performance.

Skills

6-DOF modeling

C programming

Flight mechanics

Monte Carlo analysis

Independent work

Education

ABET AE BS

Tools

Simulation tools

Job description

Join Our Journey

At Amentum Space Exploration Division (ASED) your growth is our priority! That’s why we offer an array of exciting opportunities for your career development. From the transformative Team Lead Academy to education reimbursement, personalized mentoring, and engaging company-sponsored networking events, you have the power to shape your professional journey in a way that aligns with your aspirations.

Find Your Community

At the heart of our thriving business are the incredible people who make it all possible. We celebrate a vibrant array of cultures, backgrounds, and experiences. Here, we foster an environment where everyone—employees, clients, and partners alike—are treated with the dignity and respect they deserve.

Prioritize Your Well-Being

Our extensive benefits package is designed with your health in mind. Enjoy wellness programs, paid holidays, generous time off, employee perks, and so much more. We’re here to help you achieve a harmonious balance in your life—both at work and at home.

Together, We Soar

Our dynamic team consists of ten companies united in a single mission: to venture from Moon to Mars and beyond. Join us on this extraordinary adventure!

This position has been aligned with Amentum Space Exploration Division.

Position Description:

The Amentum Space Exploration Division (ASED) Guidance, Navigation and Mission Analysis team is a high-performing group executing challenging tasks to design, integrate, and evaluate systems for NASA’s Space Launch System (SLS). We are searching for a highly qualified candidate to support NASA’s Flight Mechanics and Mission Analysis teams at NASA’s Marshall Space Flight Center (MSFC). This exciting work will serve as a critical step in sending humans back to the Moon, Mars, and beyond!

ASED offers a partnership in which you can grow personally and professionally within a framework of strong leadership, competitive compensation, and rewarding career paths. Come join our team!

Job Functions:

• Develop, maintain, and evaluate 6-DOF (Degrees of Freedom) simulation models for launch vehicles or missile systems.
• Perform flight mechanics and trajectory analysis using advanced simulation tools.
• Execute Monte Carlo and statistical analyses to assess vehicle performance, margins, and robustness.
• Validate simulation models and assess vehicle dynamics across various flight regimes.
• Build and improve standalone analysis tools to evaluate vehicle system performance.

Qualifications

Education:

• A degree from an ABET-accredited institution in Aerospace Engineering (AE) is required. (A related field may be considered if combined with highly applicable experience).
• Educational requirements are the equivalent of a BS with 5 to 10 years of experience. A Master’s Degree in an applicable field is equivalent to approximately two (2) years of experience.

Experience:

• Required: 5 to 10 years of relevant professional experience.
• Required: Extensive experience in 6-DOF modeling and simulation of missile systems or launch vehicles.
• Required: Strong proficiency and experience in C programming.
• Desired: Experience performing Monte Carlo and statistical analyses.
• Required: Must possess strong technical initiative and the ability to work independently with minimal supervision.

Job Requirement:

• Proof of U.S. Citizenship is required.

Duties

Day-to-day activities include:

• Creating, editing, and debugging simulation software written in C.
• Running 6-DOF simulations, interpreting results, and troubleshooting anomalies.
• Working independently to solve complex flight mechanics problems while collaborating with Guidance, Navigation and Mission Analysis leads and other engineering disciplines when required.
• Creation and review of engineering and software documentation.
• Preparing and presenting technical reports and briefings.

Work Environment:

• Office environment onsite MSFC (>90%).
• Requires ability to provide clear, concise, accurate, and timely communication, both verbally and in writing (100%). Strong presentation and communication skills are required.
• Requires ability to interact professionally with co-workers, management, and customers (100%).
• Requires travel in the domestic USA (<5%).
• Requires ability to work at a computer for long periods of time (>80%).

Essential Functions

Proof of U.S. Citizenship is required.

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.

#ESSCA #ASED #Amentum

Compensation Details:

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:

• 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:

10/29/2026 - 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.