Windows Systems Administrator Jobs

Job Description: TS/SCI Windows Systems Administrator Location: Arlington, VA (100% On-Site)

Shift: First Shift (4:00 AM - 12:00 PM)

Clearance: Active TS/SCI Required Compensation: Up to $65/hour Job Type: Contract (3-Year Opportunity)

Job Overview: TEKsystems is seeking a cleared Windows Systems Administrator to support a critical federal program with Leidos in Arlington, VA. This position is ideal for an IT professional with strong experience supporting enterprise Windows Server environments, Active Directory, VMware, and secure government infrastructure. The successful candidate will join a team responsible for maintaining and supporting mission-critical systems within a highly secure environment. This role offers the opportunity to contribute to ongoing infrastructure modernization efforts while supporting a large-scale enterprise environment.

Required Qualifications: Active TS/SCI Security Clearance Security+ CE or equivalent DoD 8570 IAT Level II certification 4+ years of Windows Server administration experience Experience managing Active Directory environments Experience with Group Policy (GPO) administration Experience supporting VMware environments Experience installing, configuring, troubleshooting, and maintaining Windows Server systems Experience applying security best practices and DISA STIGs Strong troubleshooting and problem-solving skills Preferred Qualifications AWS experience PowerShell scripting experience Python scripting experience Experience with SCAP compliance tools Remote Desktop Services (RDS) Linux administration experience ITIL Foundation certification TS/SCI with CI Polygraph Responsibilities Administer and maintain Windows Server infrastructure Manage Active Directory and Group Policy across enterprise environments Troubleshoot and resolve server, application, and operating system issues Support VMware virtualization platforms Implement and maintain security configurations and STIG compliance Create and maintain technical documentation and procedures Work closely with infrastructure and network teams to ensure system availability and performance Support ongoing enterprise modernization initiatives Additional Information 100% On-Site in Arlington, VA Active TS/SCI Required Security+ Required First Shift: 4:00 AM - 12:00 PM Long-Term Contract Opportunity Potential for future CI Polygraph sponsorship Compensation: Up to $65/hour based on experience and qualifications.