Agile Defense3h ago

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USD 90000–110000/yr

Network Engineer

United States·AshburnRegularmid

Network EngineerInfrastructure & Cloud

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Quick Summary

Overview

About Agile Defense At Agile Defense we know that action defines the outcome and new challenges require new solutions.

Technical Tools

Network EngineerInfrastructure & Cloud

About Agile Defense

At Agile Defense we know that action defines the outcome and new challenges require new solutions. That’s why we always look to the future and embrace change with an unmovable spirit and the courage to build for what comes next.

Our vision is to bring adaptive innovation to support our nation's most important missions through the seamless integration of advanced technologies, elite minds, and unparalleled agility—leveraging a foundation of speed, flexibility, and ingenuity to strengthen and protect our nation’s vital interests.

Requisition #: 1799

Job Title: Network Engineer

Location: Hybrid, Ashburn, VA

Clearance Level: Ability to successfully receive a DHS Customs and Border Protection background check (CBP BI), Public Trust

Serve as a Network Engineer enabling the Department of Homeland Security (DHS) mission and enterprise network infrastructure. The applicant will be responsible for engineering, installing, maintaining, configuring, and troubleshooting wide-area networks (WAN), local-area networks (LAN), Virtual Private Networks, wireless networks (WLAN), and perimeter security controls in accordance with customer standards and mandates.

Bachelor’s degree in management information systems, Computer Science, Engineering, or a related technical field (e.g., Information Technology, Networking and Telecommunications) with 5+ years of experience performing network engineering or 8+ years of network engineering experience without a bachelor’s degree.

Minimum of five (5) years of verifiable network engineering experience supporting a large, complex Federal agency.

Strong knowledge of networking protocols, such as TCP/IP, BGP, OSPF, EIGRP, MPLS, VPNs and VLANs.

Expertise and experience with Cisco technology and Firewall technologies

5 years

Network Engineering & Maintenance: Configure, deploy, and support enterprise-grade switches, routers, firewalls, VPN gateways, adhere to logging baselines and load balancers across DHS operational environments.

Troubleshooting & Incident Management: Provide Tier 2/Tier 3 escalation support for network outages, circuit degradations, and performance issues; conduct root cause analyses (RCA) and coordinate vendor support.

Architecture & Upgrades: Support the planning, installation, and cutover of network hardware upgrades, SD-WAN transitions, cloud interconnects (AWS/Azure/GCP), remote field sites and infrastructure modernization.

Documentation & Asset Management: Maintain accurate network diagrams (Visio), topology maps, inventory databases, standard operating procedures (SOPs), and change control tickets (ServiceNow/Remedy).

Support On-Call & Escalation Management: support 24/7/365 on-call rotation readiness to respond to Tier 2/3 critical network incidents within SLA limits, driving root cause identification and coordinating cross-functional escalation pathways. Project Support:

Partner with program and project managers to align network engineering deliverables, milestone schedules, and resource planning with enterprise project objectives.

Scheduled and Adhoc Travel: Ability to travel within the United States either on short notice or scheduled, up to 35% of the time.

Critical and Problem solving skills, ability to work independently.

Intermediate skills in 3 or more of the following

Cisco SD-WAN

Cisco Hyperflex

Cisco StealthWatch

Cisco Application Centric Infrastructure

Palo Alto Firewalls

Willing to be cross trained in the above technologies,

Previous CBP BI within the past 4 years highly desired.

Active Industry certifications, such as CCNA, CCNP (routing and switching), and/or JNCIP are desired.

Ability to sit for long periods of time.

Our Core Values

Employees of Agile Defense are our number one priority, and the importance we place on our culture here is fundamental. Our culture is alive and evolving, but it always stays true to its roots. Here, you are valued as a family member, and we believe that we can accomplish great things together. Agile Defense has been highly successful in the past few years due to our employees and the culture we create together.

What makes us Agile? We call it the 6Hs, the values that define our culture and guide everything we do. Together, these values infuse vibrancy, integrity, and a tireless work ethic into advancing the most important national security and critical civilian missions. It's how we show up every day. It's who we are.

Happy - Be Infectious. Happiness multiplies and creates a positive and connected environment where motivation and satisfaction have an outsized effect on everything we do.
Helpful - Be Supportive. Being helpful is the foundation of teamwork, resulting in a supportive atmosphere where collaboration flourishes, and collective success is celebrated.
Honest - Be Trustworthy. Honesty serves as our compass, ensuring transparent communication and ethical conduct, essential to who we are and the complex domains we support.
Humble - Be Grounded. Success is not achieved alone, humility ensures a culture of mutual respect, encouraging open communication, and a willingness to learn from one another and take on any task.
Hungry - Be Eager. Our hunger for excellence drives an insatiable appetite for innovation and continuous improvement, propelling us forward in the face of new and unprecedented challenges.
Hustle - Be Driven. Hustle is reflected in our relentless work ethic, where we are each committed to going above and beyond to advance the mission and achieve success.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities

Location & Eligibility

Where is the job

Ashburn, United States

Hybrid — some on-site time required

Who can apply

Listing Details

Posted: August 19, 2026
First seen: August 19, 2026
Last seen: August 19, 2026

Posting Health

Days active: 0
Repost count: 1
Trust Level: 75%
Scored at: August 19, 2026

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Agile Defense

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Agile Defense: Always Evolving. Agile Defense stands at the forefront of innovation, driving advanced capabilities and solutions tailored to the most critical national security and civilian missions.

Employees

3k+

Founded

1998

Domain

agile-defense.com

Jobs

View 217 jobs

View company profile

Salary

USD 90000–110000

per year