Enter a job title or keyword

Space Nuclear Propulsion Engine Systems Analyst

Amentum


Job Location:

Huntsville, AL - USA

Monthly Salary: Not provided by the employer
Posted: 11 July 2026 (30+ days ago)
Application Deadline: 8 October 2026
Vacancies: 1 Vacancy

Job Summary

Create Your Career:

Grow With Us

Your growth matters to usthats why we offer a variety of ways for you to develop your career. With professional and leadership development opportunities like Team Lead Academy education reimbursement mentoring and company sponsored networking events you can take control of your own career path on your own terms with a company that believes in you.

A Place Where You Belong

People are at theheart of our business. We reflect a diversity of cultures backgrounds and experiences. We expect our people clients and partners to treat one another with dignity and respect.

Support Your Well-Being

Our comprehensive benefits package includes wellness programs paid holidays paid time off employee perks and much more. With these benefits plus the option for flexible schedules well support you as you pursue a balanced fulfilling lifeat work and at home.

Our team is comprised of 10 companies working together on one mission Moon to Mars and then beyond

This position supports the Space Nuclear Propulsion (SNP) program at NASA aimed at maturing the technology for nuclear rocket engines. The engineer will work both independently at times and in an integrated team performing engine systems and system engineering-related activities of the nuclear rocket engine project.

As a key member of the SNP team primary duties will include:

  • Expertise in Nuclear Core Multiphysics (MP) Modeling: Experience with the physics involved in nuclear core dynamics including heat transfer fluid mechanics structures and nuclear engineering. Proficiency in at least one of these areas with a strong focus on nuclear engineering is essential.

  • Nuclear Reactor Operations: Familiarity with nuclear reactor startup shutdown cooldown testing and controls is highly desired. Experience with simulating these operational phases is a plus.

  • Nuclear Reactor Core Materials: Understanding of the materials and nuclear properties of nuclear reactor cores particularly those used in nuclear thermal propulsion systems.

  • Simulation Software Proficiency: Experience with simulation tools such as MCNP and OpenMC is highly desired. Familiarity with MOOSE is also valuable.

  • Nuclear Fuel Performance: Solid understanding of nuclear fuel performance including the ability to model the nuclear chemical and mechanical effects of fuel under varying operational conditions.

  • Create/utilize stability analysis tools to assess engine stability from ROCETS model results.

  • Cross-Disciplinary Collaboration: Proven ability to interface successfully across multiple organizations and disciplines ideally in a leadership or collaborative capacity.

  • Software Integration: Strong ability to efficiently integrate disparate software systems and work comfortably in a networked environment particularly on Linux systems and high-performance computing (HPC) platforms.

  • Modeling & Simulation Software Development: Experience with M&S software development including parallel processing and efficient solution algorithms is highly desirable.

  • Coordinate develop and present technical materials related to engine systemperformance and testing in support of design milestone reviews andanomaly investigations.

  • Document and maintain test and data analysis processes in written work instructions.

  • Participate inrelevanttrade and pursue resolution of issues.

  • Identify and document customer objectivesand product requirements.

  • Other duties as assigned.


Qualifications include:

BS plus 20 years of experience or MS plus 18 years of experience in Nuclear Aerospace or related engineering field from an ABET-accredited university.

  • Proficiency with Computational Model Validation.

  • Experience with radiation shielding/detection/source handling.

  • Proficiency with FORTRAN 90 is desirable.

  • Excellent presentation skills.

  • Excellent organizational skills and time management.

  • Able to work in a team environment.

  • Must be able to provide own transportation.

  • Proof of U.S. Citizenship is required.

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

Compensation Details:

SME2

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-OHara Service Contract Act (SCA) or other employment contracts may include different provisions/benefits.

Original Posting:

03/26/2026 - 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 atLabor Laws Posters.


Required Experience:

IC


About Company

Company Logo

AMENTUM has an immediate opening for a Logistics Operations Center Analyst II USC in Kuwait.Performs mission/resource analysis coordinates with supply, maintenance and transportation functional areas and ensures supporting requirements and implied tasks are accomplished to standard an ... View more

View Profile View Profile