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# Network Engineer, Senior

- **Company:** AMERICAN SYSTEMS
- **Location:** Arlington, VA, United States
- **Experience:** Expert
- **Salary:** $140,000.0 - $170,000.0
- **Contract:** Permanent contract
- **Skills:** Application Firewall, Cisco Routers, System Configuration, Network Topologies, Virtual Private Networks (VPN), Network Layer, Network Planning and Design, Routing, Identity Services Engine, Computer Network Operations, Firewalls (Computer Science), Vmware
- **Published:** June 1, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=8f1c03f5645f6da5

## About the Role

Do you have experience in Network topology design?, Do you have a Bachelor's degree?, * U.S. Citizenship (required)

 * Active TOP SECRET clearance with SCI eligibility
 * Bachelor's degree (or 6 additional years of relevant experience in lieu of degree)
 * 8-10 years of professional networking experience
 * Expertise in Cisco ISE configuration and troubleshooting, routing/switching, and firewall administration
 * Strong understanding of Layer 2/3 protocols and network design principles
 * Certifications such as CCNP or CCIE are highly preferred

## Description

As an on-site AMERICAN SYSTEMS Lead Network Engineer, you'll take a hands-on leadership role ensuring secure, reliable network operations supporting U.S. Government customers. You'll serve as a technical authority, guiding network design, troubleshooting complex issues, and maintaining mission-critical connectivity in classified environments., As a Lead Network Engineer, you will:

 * Configure and troubleshoot Cisco Identity Services Engine (ISE) to protect data and control access to classified networks.
 * Install, configure, and maintain Cisco routers, switches, and firewalls.
 * Diagnose and resolve Layer 2/Layer 3, VPN, and VMware network issues.
 * Coordinate on-site and remotely with users to configure equipment and troubleshoot connectivity.
 * Recommend performance and security enhancements that improve reliability and reduce costs.
 * Interface with senior management and vendor technical teams on network solutions.
 * Work independently or lead small technical efforts with minimal supervision.


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