Position Description:

The Main Propulsion Systems (MPS) Engineer will work in a highly integrated team performing technical and integration activities to support main propulsion systems and launch vehicles.

Responsibilities:

• Primary duties for the Propulsion Systems Engineer may include, but are not limited to:
• Develop models and analysis tools, provide analytical documentation such as trade studies, hazards assessments, fault tolerance designs, certifications for flight, launch vehicle data reviews.
• Provide insight and recommendations for subsystem and vehicle in-space environment model fidelity.
• Evaluate performance of system models in ground and flight operations
• Attend technical interchange, project planning, design review and other appropriate meetings to maintain a current knowledge base of design, requirements, issues, action items, and resolution activities.
• Perform system assessments, identify issues, pursue resolutions, document and present to engineering review board with rationale and recommendations.
• Provide integration insight, evaluations, document reviews, and milestone reviews including Review Item Discrepancy (RID) disposition at the Program and Element level.
• Evaluate vehicle changes for impacts to propulsion elements and vehicle integration.
• Verification and validation reviews for propulsion components, subsystems and integrated vehicle.
• Assess propulsion system risks and issues associated with commercial crew launch vehicles; develop requirements and implement risk management processes.
• Perform analysis and provide systems engineering skills to support various program engineering and integration.
• Provide console support during simulations, testing, and launch operations, developing data analysis scripts, monitoring haz-gas and leak detection, and ensure compliance with LCCs and OMRS.
• Perform post-test/flight data analysis of vehicle MPS performance.

Qualifications:

Degree in Engineering or related discipline required; Engineering degree from an ABET accredited university preferred. Typical education requirements is a BS and 0-10 years' experience. Must be a US Citizen and have a STAR ID.

The selected candidate should also demonstrate:

• Experience with liquid propulsion system design, analysis, engine integration or development/verification testing.
• Integration experience at the vehicle or stage level to include technical and systems engineering activities.
• Capability to plan and perform systems engineering and analysis tasks independently and as a team.
• Proficiency with Microsoft Office products such as Power-Point, Excel, and Word.
• Excellent written and verbal communication skills.
• Individual must be highly motivated, flexible and willing to shift focus areas to meet volatile customer requirements.

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:
ES3

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:
08/19/2026 - 09/30/2026
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.