Network Administrator - Night Shift

Koitecc Solutions; San Antonio (TX); On-site; USD 59,000 - 107,000; Full time

Job summary

Leidos is seeking a Network Administrator for the 3rd shift (9 PM–5 AM) in San Antonio, TX, on-site. You will lead day-to-day operations, monitor networks, and manage incidents to ensure reliable access to services for a growing user base.

Required BS in CS or IT, 2+ years' experience, and DoD 8570 IAT II certification, with 24/7 shift availability. Active TS/SCI clearance or the ability to obtain CI poly is required.

Qualifications

• Active TS/SCI clearance with ability to obtain CI poly if required.
• DoD 8570 certification at least IAT level II (e.g., Security+ CE).
• BS in computer science or IT and 2+ years of experience.

Responsibilities

• Monitor network connections and performance to ensure availability.
• Identify risks and mitigate issues in the network.
• Plan, coordinate, and implement network maintenance and security improvements.
• Receive and review user requests for access to services.
• Troubleshoot and escalate complex issues to senior engineers or vendors.
• Configure, install, and maintain network devices and software.

Skills

Network monitoring

Risk identification

Network maintenance

User access support

Troubleshooting

Device configuration

Education

BS in Computer Science or IT

Tools

Switches & routers

BGP/OSPF

802.1x

IPSEC/Tunnels

Job description

We are currently seeking a Network Administrator 3rd shift (9PM to 5AM) 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. By leading day to day operations activities and incident response for assigned shift.

This position is based in San Antonio, TX 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 escalat 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 with ability to obtain CI poly if required
• Currently possess DoD 8570 certification at least IAT level II, e.g Security+ce.
• BS in computer science or IT and 2+ 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 802.1xPrior 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:

• October 2, 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 $59,150.00 - $106,925.00

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.