Job Description

Duties

The Engineer will:

• Perform testing for planned materials used in space nuclear reactors for long duration deep space mission.

• Conduct tests and processing post test data & analyses.

• Generate peer reviewed white papers on test results for AIAA and/or JANNAF Conferences.

• Perform systems level analysis needed to validate test readiness.

• Review analysis and test results associated with materials development used in nuclear propulsion designs.

• Some travel may be required.

• This job involves longer hours during testing.

• Maintain training on-site and off-site and kept up to date within contract compliance requirements.

Qualifications - External

Bachelor with 1-5 years of experience or master’s degree in aerospace, mechanical or nuclear engineering or related field is required.

Degree from an ABET accredited institution preferred.

Skills and experience should demonstrate:

• Ability to attain a security clearance through the Department of Defense if needed later.

• Cursory electronics background (e.g., circuit building, avionics for spacecraft).

• Hardware Interfaces – can review a schematic and know what we’re trying to accomplish and implement.

• Knowledge of nuclear types of fuels and reactors commonly used in such engines.

• Experience writing test plans and implementation of them into final test products.

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:

04/01/2026 - 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