Network Administrator

Zachary Piper Solutions; Newington (VA); On-site; USD 120,000 - 135,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

401(k)

PTO

Job summary

Zachary Piper Solutions is seeking a Network Administrator in Newington, VA to support a long-term enterprise IT program onsite. The role focuses on enterprise routing and switching, network access control, management, and troubleshooting in a highly regulated environment.

Qualifications include 3+ years in enterprise networks, TS/SCI clearance, and hands-on Cisco experience. Certification in CCNA and Security+ is preferred, with a strong emphasis on collaboration across infrastructure, systems,

Qualifications

• 3+ years of network administration experience in enterprise environments.
• Active TS/SCI clearance.
• Hands-on experience with Cisco routers and switches.
• Experience configuring VLANs, routing, and network segmentation.
• Experience with Cisco ISE and Cisco DNAC.

Responsibilities

• Manage, configure, and troubleshoot Cisco-based enterprise networks.
• Administer Cisco ISE and DNAC environments.
• Configure VLANs, trunking, and inter-VLAN routing.
• Monitor network performance and proactively resolve issues.
• Troubleshoot with Wireshark, NetFlow, and related tools.
• Support security technologies including firewalls, ACLs, NAT, and VPNs.
• Collaborate with engineers, sysadmins, and security teams.
• Document configurations and operational changes.

Skills

TS/SCI clearance

Cisco routing & switching

Cisco ISE

Cisco DNA Center

Wireshark/NetFlow

802.1X/RADIUS/TACACS+

Firewalls/VPN

CCNA

CompTIA Security+

Tools

Cisco routers/switches

Job description

Zachary Piper Solutions is seeking a Network Administrator to support a long-term enterprise IT program based in Newington, VA. The Network Administrator will support enterprise routing and switching, network access control, network management, and troubleshooting across a large-scale environment. This position requires a TS/SCI Clearance and is onsite in Newington, VA!

Responsibilities of the Network Administrator:

• 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

Qualifications for the Network Administrator:

• 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

Compensation for the Network Administrator:

• Salary: $120,000 - $135,000
• Comprehensive benefits package including Medical, Dental, Vision, 401(k), PTO, and Paid Holidays