Network Administrator

Zachary Piper

Newington, VA, United States

13 days ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience level

Experienced

Experience required

3 years minimum

Compensation

$120,000.0 - $135,000.0

Working hours

Regular working hours

Job source

www.clearancejobs.com

Tech stack

IEEE 802.1X Cisco Routers CompTIA Security+ System Configuration Data Centers Network Address Translation Trunking Virtual Private Networks (VPN) Network Security Network Troubleshooting NetFlow Network Monitoring

+14 more

Routing Network Segmentation Network Administration Remote Access Technology Wireshark Virtual Local Area Networks Computer Networking Systems Identity Services Engine Network Access Control Software Troubleshooting Firewalls (Computer Science) Network Support TACACS+ Protocol Cisco

Job description

Manage, configure, and troubleshoot Cisco-based enterprise networks
Administer and support Cisco Identity Services Engine (ISE) and Cisco DNA Center (DNAC)
Configure and maintain VLANs, trunking, inter-VLAN routing, and network segmentation
Support enterprise routing and switching infrastructure
Monitor network performance and proactively identify and resolve connectivity issues
Troubleshoot network issues using tools such as Wireshark and NetFlow
Support network security technologies including firewalls, ACLs, NAT, and VPNs
Manage network access control technologies including 802.1X, RADIUS, and TACACS+
Support secure network operations within a highly regulated environment
Collaborate with network engineers, system administrators, infrastructure teams, and security teams
Participate in change management, incident response, and network maintenance activities
Document network configurations, troubleshooting procedures, and operational changes
Support data center and physical network infrastructure
Work with technical and non-technical stakeholders to resolve network issues and maintain reliable enterprise operations

Requirements

3+ years of network administration experience supporting enterprise environments
Active TS/SCI clearance
Experience supporting enterprise routing and switching environments
Strong hands-on experience with Cisco routers and switches
Experience configuring and troubleshooting VLANs, routing, and network segmentation
Experience with Cisco ISE
Experience with Cisco DNA Center (DNAC)
Experience using Wireshark, NetFlow, or similar network troubleshooting tools
Knowledge of 802.1X, RADIUS, and TACACS+
Experience with firewalls, ACLs, NAT, and VPN technologies
Strong understanding of network security and access-control principles
CompTIA Security+ certification
CCNA certification
Strong troubleshooting, analytical, and communication skills
Ability to work effectively with infrastructure, systems, and security teams