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Are you looking for an exciting, innovative company with over 100 years of excellence and commitment to ethical business? Amentum is a trusted partner to United States government agencies, allied governments, and corporations worldwide supporting critical programs across a broad range of domains. We are hiring a Principal Engineer for Radiation Hardened Systems to support nuclear modernization efforts across Amentum’s Department of War programs.

As a Principal Engineer for Radiation Hardened Systems , you will serve as a Subject Matter Expert on radiation effects collaborating with Amentum leadership and Government customers to advise on policy development, strategic planning, and implementation. This role will be responsible for bridging technical depth with strategic program goals, operating as a high-level expert who guides architectural decisions, mentors staff, and solves complex, high-risk problems. This individual will use their experience to steer technical vision, improve engineering processes, and align projects with long-term objectives across multiple programs. In this role the candidate will be resolving high-stakes issues, program bottlenecks, scaling challenges, perform risk assessments, foster collaboration among stakeholders, ensure program goals are achievable, and refine requirements.

Essential Responsibilities:

• Interface with numerous stakeholders across the Amentum and Government teams to understand specific program needs and requirements

• Analyze the impact of radiation environments on system performance and support system level design trades

• Design harden and verify the performance of systems across multiple radiation effects

• Work with interdisciplinary teams to ensure radiation hardened is maintained throughout the product lifecycle

• Provide guidance on critical decision-making and complex problem solving

• Develop and/or review program reports, technical papers, white papers, and roadmaps

• Demonstrate ability to recognize nuances and resolve contradictions and inconsistencies in information

• Support various Amentum company initiatives

Minimum Requirements:

• Bachelor's degree and at least twenty (20) years of job-related experience

• Expertise in materials and device radiation interactions

• Extensive experience in radiation testing, requirements development, and results analysis

• Strategic planning expertise across multiple programs and organizations

• Experience developing technical white papers and proposals

• Strong analytical and problem solving skills

• Ability to work effectively with a variety of team members

• Excellent oral and written communication skills

• Ability to pass and maintain a Security Clearance (Note: US Citizenship is required to obtain a security clearance)

Preferred Qualifications:

• Active Secret Clearance

Compensation Details:

$250,000-$300,000

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:

04/10/2026 - 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 (https://postings.govdocs.com/#/vxSkbztPuAwwxfs) .