Network and Cybersecurity Engineer

Amentum; Alexandria (VA); On-site; USD 183,000 - 203,000; Full time

Benefits offered by this job

Health insurance

Paid time off

Retirement benefits (401(k))

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Disability and life insurance

Job summary

Amentum is seeking a Network and Cybersecurity Engineer to secure and accredit WIDS environments for the Skywalker program. You will coordinate A&A/ATO efforts, develop accreditation artifacts, and ensure RMF-compliant deployment across systems. The role requires DoD/IC IA experience and strong technical documentation skills.

Working with Government stakeholders and engineering teams, you will help harden systems, manage patches, and support security reviews, audits, and accreditation activities.

Qualifications

• Experience supporting DoD/IC IA or cybersecurity programs.
• Knowledge of RMF, ICD 503, A&A, and ATO processes.
• Experience developing security accreditation artifacts and documentation.
• Understanding of secure system engineering principles and cybersecurity best practices.
• Strong written, verbal, and analytical communication skills.
• Ability to coordinate across engineering teams and government stakeholders.
• Ability to travel worldwide.

Responsibilities

• Support cybersecurity engineering and IA activities for WIDS deployments.
• Coordinate A&A and ATO efforts per ICD 503 and government requirements.
• Develop, review, and maintain accreditation documentation and security plans.
• Coordinate with engineering teams to implement secure configurations and controls.
• Support vulnerability assessments, security compliance reviews, and risk mitigation.
• Assist with system hardening, patch management, and configuration management.
• Provide technical guidance on cybersecurity requirements during deployment and sustainment.
• Support government customers during security reviews, audits, and accreditation.

Skills

Info Assurance

RMF ICD 503

A&A/ATO processes

Cybersecurity documentation

Written & verbal comms

Education

Bachelor's Degree

Master's Degree

Job description

Aug 14, 2026

$183,000 - $203,000/year

Purpose andImpact: Amentum/Secure Networking Solutions is seeking a Network and Cybersecurity Engineer to ensure the security, accreditation, and compliance of Wireless Intrusion Detection System (WIDS) environments of Amentum’s Skywalker program. The Network and Cybersecurity Engineer is responsible for supporting Information Assurance (IA) activities, coordinating Assessment and Authorization (A&A) and Authority to Operate (ATO) efforts, and implementing cybersecurity best practices throughout the system lifecycle. Working closely with Government stakeholders and engineering teams, this position ensures systems are securely deployed, maintained, and operated in accordance with ICD 503, Risk Management Framework (RMF), and customer security requirements while supporting mission-critical operations. Experience writing clear, concise, and user-friendly technical and training manuals or similar documentation, including documents required for A&A IAW ICD 503, is required.

Work Schedule: Monday – Friday, 8 am-5 pm.

Support cybersecurity engineering and IA activities for WIDS deployments.

Coordinate A&A and ATO efforts in accordance with ICD 503 and Government requirements.

Develop, review, and maintain accreditation documentation, security plans, and technical procedures.

Coordinate with engineering teams to implement secure system configurations and cybersecurity controls.

Support vulnerability assessments, security compliance reviews, and risk mitigation activities.

Assist with system hardening, patch management, and configuration management.

Provide technical guidance on cybersecurity requirements throughout system deployment and sustainment.

Support Government customers during security reviews, audits, and accreditation activities.

Work Environment, Physical Demands, and Mental Demands: Office Setting, but may be required to install sensors and wiring, which requires climbing ladders and lifting upto 20 lbs.

MinimumRequirements(Knowledge, Skills, and Abilities):

Experience supporting Information Assurance or cybersecurity activities within DoD and/or Intelligence Community environments.

Knowledge of RMF, ICD 503, A&A, and ATO processes.

Experience developing technical documentation and security accreditation artifacts.

Understanding of secure system engineering principles and cybersecurity best practices.

Strong written, verbal, and analytical communication skills.

Ability to coordinate across engineering teams and Government stakeholders.

Ability to travel worldwide.

SecurityClearanceRequired: TS/SCI with Poly

Minimum Years of Experience:

Bachelor's Degree with 5–7 years of experience; Master's Degree with 3–5 years of experience; or equivalent combination of education and experience.

Minimum of five (5) years supporting cybersecurity, Information Assurance, or systems engineering efforts for classified Government programs.

$183,000-$203,000

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

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:

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.

Amentum

A global leader in advanced engineering and innovative technology solutions.

Amentum is a global leader in advanced engineering and technology solutions, dedicated to addressing complex challenges in science, security, and sustainability for the U.S. and allies.

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4800 Westfields Blvd, 400, Chantilly, Virginia 20151, US 20501 Seneca Meadows Pkwy, Suite 300, Germantown, Maryland 20876, US