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# Windows Systems Administrator

- **Company:** Leidos, Inc.
- **Location:** Reston, VA, United States
- **Experience:** Experienced
- **Salary:** $73,450.0 - $132,775.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Microsoft Azure, CompTIA Security+, Dynamic Host Configuration Protocol, Desktop Computing, Domain Name System (DNS), Microsoft Exchange Server, Microsoft Software, Windows Servers, Performance Tuning, Remote Desktop Services, SQL Databases, System Availability, Vmware
- **Published:** November 8, 2026
- **Apply:** https://www.careerbuilder.com/job-details/windows-systems-administrator-reston-va--41f78599-2c3d-465e-a7df-242ee2ae79e6

## About the Role

Microsoft Windows System Administration, Microsoft Windows System Administration, Top Secret Clearance, Sensitive Compartmented Information (SCI), Microsoft Windows Operating System, Desktop PC, Vehicle Fleets, Identify Issues, Microsoft Windows Server, Microsoft Product Family, * Bachelor's degree with 4+ or 8+ years of relevant experience or a Master's degree with 2+ or 6+ years of relevant experience. Additional relevant experience may be considered in lieu of a degree.

 * Active TS/SCI clearance in DISS and required program access.
 * Active CompTIA Security+ certification.
 * Active Windows Server operating system certification or the ability to obtain after hire.
 * Extensive experience administering enterprise Windows environments, including Active Directory (AD), Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), Microsoft Exchange email services, Microsoft Azure Cloud, Remote Desktop Services, VMware, Omnissa, desktop management, and Windows Server services.
 * Experience performing advanced system troubleshooting.
 * Strong interpersonal and communication skills.

## Description

Leidos is seeking a Windows Systems Administrator to support mission critical infrastructure for the U.S. Navy Fleet Command in Naples, Italy. In this role, you will administer and maintain Windows server environments supporting enterprise infrastructure, standardized desktop services, and secure mission operations. The ideal candidate has extensive experience managing Microsoft technologies, troubleshooting complex systems, and maintaining secure, high availability Windows environments.

This role is open to candidates across a range of experience levels. The scope of the position and corresponding compensation will be aligned with the selected candidate's background and expertise., * Administer and manage advanced Windows Server environments and Microsoft enterprise services.

 * Maintain daily system operations by monitoring, identifying, troubleshooting, and resolving issues affecting servers, applications, and operating systems.
 * Perform performance tuning, hardware upgrades, and resource optimization to ensure reliable system performance.
 * Troubleshoot and resolve complex Windows Server issues.
 * Research, document, and recommend new system technologies and improvements.
 * Review and implement Information Assurance Vulnerability Alerts (IAVAs) and Information Assurance Vulnerability Bulletins (IAVBs).
 * Install, configure, secure, maintain, document, troubleshoot, and administer SQL databases to ensure optimal performance.
 * Support global operations by maintaining secure, resilient Windows infrastructure environments.
 * Travel may be required to support other U.S. Navy commands both within the continental United States (CONUS) and outside the continental United States (OCONUS).