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Position Description:
As an Experienced Propulsion Design Engineer, you will provide inline design, development, and test support of propulsion systems for NASA's Human Launch Systems. In this role, you will become part of a multi-discipline team with the charter to establish flight rationale for America's new Human-Rated vehicles.
Primary job duties include:

• Engage in multi-discipline engineering teams in the creation of new designs (CAD models, documents, drawings) and research with a focus on propulsion devices and support hardware.
• Use CREO parametric modeling software including extensions such as CREO piping and additive manufacturing modules.
• Collaborate with vendors and personnel from other NASA centers in the development of integrated flight hardware and associated ground test equipment.

Qualifications - External
BS degree (MS preferred) in Mechanical, Aerospace, or Civil Engineering, Engineering Mechanics or related field is required. Degree from an ABET accredited institution is preferred. Typically, educational requirements are the equivalent of a minimum of a Master's degree with at least 13 years of experience, or BS with at least 15 years of experience.
Additional Qualifications:

• Proficiency in the use of a computer-aided design software package such as CREO, NX CAD, or Solidworks is required.
• Familiarity with ASME Y14.5 / ISO 1101 to own the dimensional strategy, draft compliant engineering drawings, and execute advanced tolerance stack-up analyses using CAD to ensure seamless manufacturing and assembly is preferred.
• Proficiency with Microsoft Office products such as PowerPoint, Excel, and Word is required.
• Familiarity with high-level programming languages, such as Python, and hands-on experience developing AI/ML models using frameworks such as PyTorch, TensorFlow, or Keras is desired.
• Excellent written and verbal communication skills are 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 #Amentum
Compensation Details:
ES5
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:
06/15/2026 - 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.