Systems Engineer

Amentum; Arlington (VA); On-site; USD 97,000 - 145,000; Full time

Benefits offered by this job

Health insurance

401(k) matching

Paid time off

Educational reimbursement

Parental leave

Employee stock purchase plan

Pet insurance

Job summary

Amentum seeks a mid-level systems engineer to provide dedicated engineering support to the Portfolio Acquisition Executive (PAE) for Munitions PMX-311 Terminal Defense systems (TDS) in Arlington, Virginia. The PMX-311 Office covers CIWS, Directed Energy, C-UAS, GWS, and RAM programs with international partners.

You will assist in planning, execution and management of development, integration, test and qualification, contribute to MBSE and agile software development, and prepare statements of

Qualifications

• Bachelor’s Degree in Science, Technology, Engineering, or Math (STEM).
• Proven systems engineering background with DoD/DoW weapons programs.
• Proficient in MS Office and able to communicate clearly.
• Ability to obtain an active DoD Secret U.S. Government Clearance.

Responsibilities

• Provide systems engineering support for design, development, production, and in-service activities.
• Support Safety and E3 analyses including review of plans, schedules, tests and data.
• Assist PMX-311 cross-functional planning, execution, and product deliveries.

Skills

Systems engineering

Communication

Detail-oriented

MS Office

Education

Bachelor’s Degree in STEM

Tools

MBSE Tools

Cameo

DoDAF

Job description

• An Active Secret U.S. Government Clearance

Amentum is seeking a mid-level systems engineer to provide dedicated engineering support to the Portfolio Acquisition Executive (PAE) for Munitions PMX-311 Terminal Defense systems (TDS), previously Program Executive Office (PEO) Integrated Warfare Systems (IWS) 11, development and engineering group in Arlington, Virginia. The PMX-311 Program Office is comprised of the US Navy Close-In Weapon System (CIWS), Directed Energy, Counter-Unmanned Aircraft Systems (C-UAS), Gun Weapon Systems (GWS), and the international cooperative Rolling Airframe Missile (RAM) program with Germany. We are looking for a qualified individual to provide day-to-day support to the PMX-311 engineering team in the planning, execution and management of development, integration, test, and qualification of the RAM and CIWS weapon systems.

Essential Responsibilities

• Provide systems engineering support for design, development, production, and in-service activities including system analysis, combat system integration, modeling and simulation, and participation in requirements development and maintenance


• Provide technical inputs in Safety and Electromagnetic Environment Effects (E3) areas including reviewing and analyzing plans, schedules, tests, test results, and data packages


• Provide Cross-Functional Support to PMX-311 Production, In-service Contracting and Financial groups with engineering inputs for cross-functional planning, execution and product deliveries to meet program objectives


• Provide project management support producing schedules, tracking critical metrics and milestones and verifying requirements


• Support management of PMX-311 engineering tasks with the engineering design agents and field activities through the development of statements of work, deliverables and funding requirements


• Draft responses to PMX-311 internal and external Requests for Information (RFIs) coordinating inputs from the programs technical community as required


• Prepare briefing materials and participate in working groups, Technical Interchange Meetings (TIMs) and program reviews


• Management, tailoring and support of Systems Engineering Technical Reviews (SETRs) through implementation of the processes defined in the Navy Technical Review Manual (TRM)


• Assist in digital transformation efforts by defining development requirements that implement Model-Based Systems Engineering (MBSE) into engineering development efforts


• Support management of agile development of system software

Minimum Requirements

• Bachelor’s Degree in a Science, Technology, Engineering, or Math (STEM) discipline


• 4-10 years engineering experience with DoD/DoW weapons programs


• Familiarity and utilization of the latest Navy Technical Review Manual (TRM) for US Navy weapon programs


• Proficient in MS Suite and good communication, organizational skills and the ability to perform detail-oriented work


• The ability to obtain an active DoD Secret U.S. Government Clearance. Note: U.S. Citizenship is required to obtain

Preferred Qualifications

• Prior experience with engineering and development on Navy Missile or Weapon System program(s)


• Prior experience utilizing Secure Internet Protocol Network Protocol Network (SIPRNet)


• Prior experience utilizing the Navy Enterprise Planning System (NEPS) or similar tool for planning of scope, milestones, deliverables and financial requirements


• An Active Secret U.S. Government Clearance


• Master’s degree in science, technology, engineering, or math discipline


• Management of engineering projects implementing Earned Value Management (EVM) Principles


• Experience with MBSE Tools and Frameworks (e.g. Cameo, DoDAF, etc.)

Travel

10%

Compensation Details:

$97,00 - $145,000

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:

10/14/2026 - 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.