Network Administrator - Night Shift

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

Job summary

Leidos in Arlington, VA is seeking a Network Administrator for the 3rd shift (10 PM–6 AM) to join the CESO effort. The role supports a secure, highly automated web service platform and incident response for the on-site team.

You will monitor network performance, coordinate maintenance, and configure devices while ensuring access, security, and availability. Candidates must hold active TS/SCI clearance and DoD 8570 IAT II certification, with a BS in CS or IT and 4+ years of experience, and be

Qualifications

• Active TS/SCI security clearance.
• DoD 8570 certification at least IAT level II (Security+ CE).
• BS in Computer Science or IT with 4+ years of experience.
• Comfortable working 24x7 shifts including nights, weekends, and holidays.

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 establish or resolve access issues.
• Troubleshoot and resolve network issues and escalate complex problems to senior engineers or vendors.
• Configure, install, and maintain network devices and software.

Skills

Network monitoring

Switches & routers

BGP & OSPF

802.1x configuration

IPSec tunnels

VLAN configurations

24x7 shifts

Education

Bachelor's degree in Computer Science or IT

Tools

AWS Cloud

Palo Alto devices

Job description

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. to become part of the Leidos team that is assisting CESO as they migrate to a high security cloud environment by leading day to day operations activities and incident response for assigned shift.

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 escalate 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

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 are not limited to) responsibilities of 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.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.