Network Architect Team Lead

Amentum; Chantilly (VA); On-site; USD 230,000 - 270,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

401(k) matching

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Disability and life insurance

Pet insurance

Job summary

Amentum/Secure Networking Solutions seeks a Network Architect / Team Lead to design, build, secure, and modernize complex enterprise networks. This role leads a team of network engineers and administrators while providing hands-on direction for LAN, WAN, and cloud infrastructure.

The ideal candidate will integrate encryption and Zero Trust, plan transitions from Layer 2 CVPN to Layer 3 internet transport, and ensure security compliance. TS/SCI CI Poly clearance is required.

Qualifications

• Design and build LAN, WAN, and cloud network infrastructure.
• Hands-on with Cisco Firepower FTD and Cisco ASA.
• Experience applying encryption and Zero Trust principles.
• Experience leading technical teams of network engineers and admins.
• Plan major transport changes from Layer 2 CVPN to Layer 3 internet connectivity.
• Address CVEs and cybersecurity compliance requirements.
• Strong documentation and communication skills.

Responsibilities

• Develop network architecture and implementation plans with security and reliability in mind.
• Design data communications networks spanning LAN, WAN, and cloud infrastructure.
• Lead engineers through design reviews, implementation, troubleshooting, and operations.

Skills

LAN/WAN design

Team leadership

Security and Zero Trust

Cloud networking

Troubleshooting

Education

Bachelor's Degree in Computer Science/Engineering

Tools

Cisco Firepower FTD

Cisco ASA

Job description

Purpose and Impact:

Amentum/Secure Networking Solutions is seeking a Network Architect / Team Lead to design, build, secure, and modernize complex enterprise networks. This position leads a team of network engineers and administrators while providing hands‑on technical direction for LAN, WAN, and cloud infrastructure. The architect will integrate firewalls, encryption, and Zero Trust principles into network designs and guide changes from Layer 2 CVPN transport to Layer 3 business‑class internet transport.

Work Schedule:

Monday – Friday, 8am-5pm.

Essential Responsibilities:

• Develop network architecture, implementation plans, and build documentation that meet organizational performance, availability, and security needs.
• Design and build data communications networks spanning LAN, WAN, and cloud infrastructure.
• Lead network engineers and administrators through design reviews, implementation, troubleshooting, and operational support.
• Design, deploy, and integrate Cisco Firepower Threat Defense (FTD), Cisco ASA, and other firewall technologies.
• Incorporate encryption and Zero Trust principles into network architecture and connectivity solutions.
• Plan and execute the transition from Layer 2 CVPN transport to Layer 3 business‑class internet transport, including routing, security, resiliency, testing, and cutover planning.
• Manage and improve complex networks, resolve escalated technical issues, and identify risks before they affect service.
• Address cybersecurity requirements related to Common Vulnerabilities and Exposures (CVEs), including assessment, remediation planning, implementation, and compliance documentation.
• Produce architecture diagrams, technical standards, configuration guidance, and implementation procedures.

Work Environment, Physical Demands, and Mental Demands:

Office Setting, but may be required to install sensors and cabling, requiring use of ladders and lifting up to 20 pounds.

Minimum Requirements (Knowledge, Skills, and Abilities):

• Demonstrated ability to design and build LAN, WAN, and cloud network infrastructure.
• Hands‑on experience with firewalls, including Cisco Firepower FTD and Cisco ASA.
• Experience designing secure connectivity using encryption and Zero Trust principles.
• Experience leading technical teams and guiding network engineers and administrators.
• Ability to plan and execute major network transport changes, including migration from Layer 2 CVPN to Layer 3 business‑class internet connectivity.
• Experience addressing network‑related CVEs and cybersecurity compliance requirements.
• Strong troubleshooting, technical documentation, and communication skills.

Security Clearance Required: TS/SCI CI Poly

Minimum Education:

Bachelors Degree in relevant area, such as Computer Science, Systems Engineering, or other computer or information technology-related field.

Minimum Years of Experience:

At least 12 years of experience in network engineering, architecture, or administration, including experience with complex enterprise networks.

Preferred Qualifications:

• Cisco Certified Internetwork Expert (CCIE).
• Cisco Certified Network Professional (CCNP).

This position [is not] designated as a safety sensitive position.

Other Responsibilities:

Safety

Amentum enforces a safety culture whereby all employees have the responsibility for continuously developing and maintaining a safe work environment. As appropriate, each employee is responsible for completing all training requirements and fulfilling all self‑aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams.

Quality

Quality is the foundation for the management of our business and the keystone to our goal of customer satisfaction. It is our policy to consistently provide services that meet customer expectations. Accordingly, each employee must conform to the Amentum Quality Policy and carry out job activities in compliance with applicable Amentum Quality System documents and customer contracts. Each employee must read and understand his/her Quality Management and Customer Satisfaction responsibilities.

Procedure Compliance

Each employee must read, understand and implement the general and specific operational, safety, quality and environmental requirements of all plans, procedures and policies pertaining to his/her job.

Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status.

Compensation Details:

$250,000

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:

• 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:

10/06/2026 - 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.