3rd-Shift Network Administrator TS/SCI, On-Site Arlington

Leidos Inc; Arlington (VA); On-site; USD 73,000 - 133,000; Full time

Job summary

Leidos is seeking a Network Administrator for a 3rd shift (10PM–6AM) in Arlington, VA. The role is 100% on-site within CESO, focusing on monitoring, maintenance, and secure network operations.

Qualified candidates hold an active TS/SCI clearance, DoD 8570 IAT II+ certification, a CS/IT BS and 4+ years of experience, and are able to work nights, weekends, and holidays. AWS and Palo Alto experience are preferred.

Qualifications

• Active TS/SCI security clearance.
• DoD 8570 at least IAT level II (e.g., Security+ CE).
• BS in computer science or IT with 4+ years of experience.
• Willing to work 24/7 shifts, nights, weekends, holidays.
• Experience monitoring network performance, security, and availability.
• Experience configuring switches and routers.
• Experience with BGP and OSPF.
• Ability to configure 802.1x.
• Experience troubleshooting S2S/IPsec tunnels.
• Experience VLAN configurations.

Responsibilities

• Network monitoring of connections and performance to ensure availability.
• Identify risks and mitigate issues in the network.
• Plan, coordinate, implement network maintenance, installation, and security.
• Receive and review user requests to establish or resolve access to services.
• Troubleshoot and resolve network issues; escalate to senior engineers or vendors.
• Configure, install, and maintain network devices and software.

Skills

Network monitoring

Issue mitigation

Network maintenance planning

User access troubleshooting

Troubleshooting network issues

Network device configuration

S2S/IPsec troubleshooting

VLAN configurations

802.1x configuration

Dynamic routing protocols

S2S/IPsec tunnels

Education

BS in computer science or IT

Tools

Switches and routers

BGP/OSPF

Palo Alto devices

AWS Cloud service

Job description

Leidos is seeking a Network Administrator for a 3rd shift (10PM–6AM) in Arlington, VA. The role is 100% on-site within CESO, focusing on monitoring, maintenance, and secure network operations.

Qualified candidates hold an active TS/SCI clearance, DoD 8570 IAT II+ certification, a CS/IT BS and 4+ years of experience, and are able to work nights, weekends, and holidays. AWS and Palo Alto experience are preferred.