Network Architect Team Lead

Amentum company; Chantilly (VA); On-site; USD 210,000 - 290,000; Full time

Benefits offered by this job

Health insurance

401(k) matching

Paid time off

Job summary

Amentum/Secure Networking Solutions is seeking a Network Architect / Team Lead to design, build, secure, and modernize complex enterprise networks. Lead a team of network engineers and administrators, providing hands-on direction across LAN, WAN, and cloud infrastructure.

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.

Qualifications

• Design and build LAN, WAN, and cloud network infrastructure.
• Hands-on experience with Cisco Firepower FTD and ASA.
• Experience implementing encryption and Zero Trust architectures.
• Leads technical teams through design reviews and deployments.

Responsibilities

• Develop network architecture and implementation plans.
• Lead engineers through design reviews and operations.
• Design, deploy, and integrate firewall technologies.
• Plan transitions from Layer 2 CVPN to Layer 3 internet transport.

Skills

LAN/WAN design

Cloud networking

Firewall integration

Zero Trust

Team leadership

Technical direction

Education

Bachelor's degree

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.

Required Certifications:

Preferred Qualifications:

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

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

As part of our commitment to maintaining a safe and compliant work environment, Amentum is a drug‑free workplace and requires all personnel to comply with company drug and alcohol policies as a condition of employment. Employment is contingent upon successful completion of the drug screening process. Please note that this may include pre‑hire screening for marijuana, as well as other federally controlled substances due to Amentum’s role as a federal contractor and trusted partner to the US Government.

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:

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:

10/06/2026 - 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.