Security-Cleared Windows Server Admin — 3rd Shift (On-Site)

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

Job summary

Leidos is seeking a Windows Systems Administrator for the 3rd shift (9 PM to 5 AM) to join the CESO effort in San Antonio, Texas. The role focuses on administering Windows Server environments, Active Directory, DNS, DHCP, Group Policy, and Microsoft-based infrastructure services in a 100% on-site setting.

Responsibilities include server installation, patching, backup and disaster recovery, monitoring, incident response, change management, and automating tasks with PowerShell.

Qualifications

• Bachelor's degree with 2+ years in Windows servers.
• Active TS/SCI clearance required.
• DoD 8750 IAT Level II certification or higher.
• Willing to work 24/7 shifts, nights/weekends/holidays.
• Experience with VMware.
• Experience with PowerShell and Python.
• Experience applying DISA STIGs.
• Strong AD/DNS/DHCP/GP support.
• Excellent troubleshooting skills.

Responsibilities

• Administer and maintain Windows Server environments.
• Manage AD, DNS, DHCP, Group Policy.
• Perform server installation, upgrades, patching.
• Monitor performance and health of servers.
• Support virtualization with VMware.
• Automate tasks with PowerShell.
• Provide escalation-level support.
• Contribute to incident response and change management.

Skills

Windows Server

Active Directory

VMware

PowerShell

Python

Security clearance

DISA STIGS

TCP/IP networking

Education

Bachelor's degree

DoD 8750 IAT Level II (e.g., Security+ce)

Tools

BMC Remedy

AWS EC2

AWS S3

VMware

Job description

Leidos is seeking a Windows Systems Administrator for the 3rd shift (9 PM to 5 AM) to join the CESO effort in San Antonio, Texas. The role focuses on administering Windows Server environments, Active Directory, DNS, DHCP, Group Policy, and Microsoft-based infrastructure services in a 100% on-site setting.

Responsibilities include server installation, patching, backup and disaster recovery, monitoring, incident response, change management, and automating tasks with PowerShell.