Senior Systems Engineer

About Amentum

Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Our people apply undaunted curiosity, relentless ambition and boundless imagination to challenge convention and drive progress. Our commitments are underpinned by the belief that safety, collaboration and well-being are integral to success. Headquarters in Chantilly, Virginia, we have approximately 50,000 employees in more than 70 countries across all 7 continents.

About the Role

Amentum is seeking a motivated and results-driven Senior Systems Engineer to support the Naval Surface Warfare Center (NSWC) Dahlgren Division, H20. In this dynamic role, you will provide technical oversight and expertise for the development of the AN/SQQ-89 Advanced Baselines, primarily focusing on surface Anti-Submarine Warfare (ASW) functional areas, including Contact Management and Weapons Control.

Responsibilities:

• Technical Oversight: Provide guidance to integrator developers, ensuring performance and interface requirements are met for the AN/SQQ-89 Advanced Baselines.

• Engineering Analysis: Conduct comprehensive engineering reviews, including but not limited to:

• Performance Specification (P-Spec) baseline releases

• Functional Description Document (FDD) baseline releases

• Interface Design Specifications (IDS)

Requirements Management : Actively participate in the AN/SQQ-89 Requirements Working Group to address performance requirements for Cruiser-Destroyer (CRUDES) platforms and Foreign Military Sales (FMS) baselines. U.S. Citizenship with an Active SECRET U.S. Government Clearance (required).

• Subject Matter Expertise: Participate in Bug Adjudication Board meetings to analyze reported issues within installed baselines.

Required Qualifications:

Education:

• Bachelor’s degree in engineering, scientific, or technical discipline from an accredited institution, or

• Ten (10) years of relevant, demonstrated experience in combat systems, command & control systems, and simulation/stimulation systems related to Surface Ship Undersea Warfare (USW) for U.S. and Foreign Military Sales (FMS) platforms.

Experience :

• Minimum of ten (10) years of professional systems engineering experience in support of Undersea Warfare, including the following:

• Proficiency in identifying, analyzing, and resolving complex engineering challenges within platform, weapon, C2, and combat systems for Navy/Joint Warfighting capabilities.

• Experience with both Government Off-The-Shelf (GOTS) and Commercial Off-The-Shelf (COTS) software technologies.

• Demonstrated ability to develop system integration documentation for weapons and C2 systems, including Engineering Change Proposals (ECPs), Interface Change Requests (ICRs), Interface Design Specifications (IDS), and Weapon Specifications (WS).

• Familiarity with weapons and combat system certification processes, including self-certification criteria.

Willingness to Work Onsite:

• The position requires the ability to work onsite at Lockheed Martin in Manassas, with the flexibility to commute to NSWC Dahlgren.

Desired Qualifications :

• At least five (5) years as a team leader performing systems analysis, engineering, and mission planning efforts.

• Previous experience with Foreign Military Sales (FMS) programs.

• Experience in top-level system architecture design and program requirement development.

• Knowledge of maintaining, reviewing, generating, and tracking systems engineering documentation.

• Expertise in evaluating and refining existing system requirements and supporting upgrades.

• Ability to review and contribute to Concept of Operations (CONOPS) and Concept of Employment (CONEMP) documents.

• Experience supporting technology refresh initiatives, providing insight on COTS technologies.

Why Join Amentum?

At Amentum, we are committed to delivering advanced solutions to support our nation’s defense initiatives. As part of our team, you’ll work alongside industry leaders and contribute to innovative projects that directly impact national security.

Ready to Apply?

If you are passionate about advanced technology, national defense, and thrive in solving complex engineering challenges, we invite you to join our team. Submit your application and let’s make an impact together!

Compensation Details:

US: 100,000 to $130,000

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:

08/17/2026 - 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 ( .