Network Administrator - Evening Shift

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

Job summary

Leidos in Arlington, VA seeks a Network Administrator for the 2nd shift (2 PM–10 PM) to support a secure web service operation. This on-site role focuses on monitoring, maintenance, and security of network infrastructure under a highly automated platform.

The ideal candidate will configure devices, troubleshoot, and coordinate with senior engineers. Requirements include TS/SCI clearance, IAT Level II (Security+ce), a BS in CS or IT (or equivalent) and 4+ years of experience.

Qualifications

• Active TS/SCI clearance.
• DoD 8570 IAT Level II certification (Security+ce) required.
• BS in computer science or IT with 4+ years of experience, or equivalent.
• Willingness to work 24x7 shifts, including nights, weekends, and holidays.
• Experience monitoring network performance, security, and availability.
• Experience configuring switches and routers; knowledge of BGP/OSPF and 802.1x.

Responsibilities

• Monitor network connections and performance to ensure availability.
• Identify risks and issues and take mitigation actions.
• Plan, coordinate, and implement network maintenance and security.
• Receive user requests to establish or resolve access issues.
• Troubleshoot and resolve network problems with senior engineers.
• Configure, install, and maintain network devices and software.

Skills

Network monitoring

Network troubleshooting

Routing protocols

802.1x configuration

S2S/IPSEC tunnels

Education

BS in Computer Science or IT

4+ years of experience

DoD 8570 IAT Level II (Security+ce)

Tools

Palo Alto devices

AWS Cloud services

Network switches/routers

Job description

We are currently seeking a Network Administrator 2nd shift (2PM to 10PM) 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. This position is scheduled to support evening shift (AKA 2nd shift), 2pm-10pm.

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

Original Posting

Original Posting: September 1, 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 Pay Range $73,450.00 - $132,775.00 The Leidos pay range for this job level is a general guideline only and 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.

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 $17.2 billion for the fiscal year ended January 2, 2026. 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 here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

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.