Network Administrator - Night Shift

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

Job summary

Leidos is seeking a Network Administrator for a 3rd shift (10PM–6AM) to support CESO efforts in Arlington, VA. The role focuses on monitoring network performance, maintaining secure web services, and implementing network maintenance and security across an automated platform.

Required are active TS/SCI, DoD 8570 IAT II certification (Security+), a BS in CS/IT or equivalent experience, and readiness for 24×7 coverage including nights and weekends.

Qualifications

• Active TS/SCI clearance.
• DoD 8570 certification at least IAT level II (eg Security+ce).
• BS in computer science or IT with 4+ years of experience; degree optional with related experience.
• Willing to work 24×7 shifts, nights, weekends, and holidays.
• Experience monitoring network performance, security, and availability.
• Experience configuring switches and routers; knowledge of BGP/OSPF.
• Ability to configure 802.1x and troubleshoot S2S/IPSEC tunnels.

Responsibilities

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

Skills

Network monitoring

Security awareness

Network troubleshooting

Routing protocols

802.1x

Education

BS in computer science or IT

Tools

S2S/IPSEC

BGP

OSPF

Palo Alto devices

AWS Cloud

Job description

We are currently seeking a Network Administrator 3rd shift (10PM to 6AM) to join the Compartmented Enterprise Services Office (CESO) effort. This program is establishing a modern secure web service (SWS) operation as part of a state‑of‑the‑art, highly automated platform capable of supporting a rapidly expanding customer population.

This position is based in Arlington, VA and is 100% on‑site.

Primary Responsibilities:

• Network monitoring of connections and performance to ensure network availability for user access and services.
• Proactively identify risks and issues in the network and complete actions to mitigate them.
• Able to plan, coordinate and implement network maintenance, installation, and security to protect and improve network infrastructure.
• Receive and review user requests to establish or resolve issues with user access to services.
• Troubleshoot and resolve network issues and escape complex problems to senior engineers or vendors
• Configure, install, and maintain network devices and software

Basic Qualifications:

• Currently possess an active TS/SCI security clearance
• Currently possess DoD 8570 certification at least IAT level II, e.g Security+ce.
• BS in computer science or IT and 4+ years of experience. Additional experience may be considered in lieu of degree
• Comfortable working 24×7 shifts , including nights, weekends, and holidays.
• Experience monitoring network performance, security, and availability
• Experience in configuring switches and routers.
• Experience working with Dynamic routing protocols (BGP, OSPF)
• Ability to change and configure 802.1x
• Prior experience troubleshooting S2S/IPSEC tunnels connection.
• Experience conducting VLAN configurations

Preferred Qualifications:

• Prior experience with DISA and DISA’s support to mission partners
• TS/SCI w/CI Poly Preferred
• AWS Cloud service experience
• Experience with Palo Alto devices

If you’re looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We’re not hiring followers. We’re recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We’re already at step 30 — and moving faster than anyone else dares.

Original Posting:

August 28, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $73,450.00 - $132,775.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but is not limited to) responsibilitiesof the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.