Windows Systems Administrator

Socket.dev; Waipahu (HI); On-site; USD 73,450 - 132,775; Full time

Job summary

Leidos is seeking a Windows Systems Administrator III to support mission critical infrastructure for the U.S. Navy Fleet Command in Pearl Harbor, Hawaii. You will administer Windows server environments, desktop services, and secure mission operations.

Requirements include 7+ years of Windows experience, TS/SCI clearance, and Security+ certification. Travel to CONUS/OCONUS may be required across U.S. Navy commands.

Qualifications

• Bachelor's degree with 7+ years of relevant experience, or Master's with 5+ years.
• Active TS/SCI clearance (in DISS) and Security+ certification.
• Experience administering Windows enterprise environments including AD, DNS, DHCP, Exchange, Azure, RDS, VMware.

Responsibilities

• 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 OS.
• Perform performance tuning, hardware upgrades, and resource optimization for reliability.
• Troubleshoot complex Windows Server issues.
• Review and implement IAVA/IAVB guidance and fixes.
• Install, configure, secure, and manage SQL databases for performance.
• Support global operations by maintaining secure Windows infrastructure.
• Travel to support Navy commands CONUS/OCONUS as needed.

Skills

Windows Server

Active Directory

Azure Cloud

VMware

Security+

RDS

Education

Bachelor's degree in CS/IS

Master's degree in CS/SE

Tools

SQL Server

DNS/DHCP

Exchange

Job description

Windows Systems AdministratorLocation: Pearl Harbor, HawaiiSecurity Clearance: Active TS/SCI RequiredLeidos is seeking a Windows Systems Administrator III to support mission critical infrastructure for the U.S. Navy Fleet Command in Pearl Harbor, Hawaii. 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.

Primary Responsibilities

• 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).

Required Qualifications

• Bachelor's degree with 7+ years of relevant experience or a Master's degree with 5+ years of relevant experience. Additional relevant experience may be considered in lieu of a degree.
• Active TS/SCI clearance (in DISS).
• Active CompTIA Security+ certification and an active Windows Server operating system certification.
• 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.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:
July 26, 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: $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.