Showing page 5 of 315 (Total listings: 6297)
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Chantilly, Fairfax County
Aug 19, 2026

System Administrator (Windows) Program Description: We are seeking a Senior Systems Administrator to lead vulnerability remediation and system hardening across a primarily Windows-based enterprise environment. The role partners closely with INFOSEC to research, validate, and implement remediation actions while assessing system impacts and maintaining security and compliance requirements. The position supports ATO and system accreditation efforts, with Linux administration experience considered …

Windows Server Administrator with Security Clearance

Associates Systems LLC ✓ Verified
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Feasterville, Bucks County
Oct 9, 2026

This position is Hybrid (3 days on 2 days remote ). This is NOT a REMOTE position. Please call me or email if you would like to learn more about this opportunity. Systems Administrator III : Target Education: Bachelor's degree in computer science, information technology, or an equivalent technical degree from an accredited college or university. Target Experience: Seven (7) years’ experience administering a Microsoft Windows domain Active Directory environment and should have extensive knowledg…

Windows System Administrator with Security Clearance

TEKsystems c/o Allegis Group ✓ Verified
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Dahlgren, King George County
May 25, 2026

Title: Windows System Administrator Location: Dahlgren, Virginia (ON-SITE) Clearance Required: Top Secret Certification Required: Security or IAT Level II Cert Top Skills Required: • System Administration of Windows-based workstation • ACAS Scans / STIGS • Active Directory Job Description: TEKsystems seeks a Systems Administrator (Windows) to provide customer support and technical assistance to users. The Systems Administrator will be responsible for: • Answering questions about installation, o…

Windows System Administrator

CACI International ✓ Verified
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Washington, D.C., US
Aug 28, 2026

Job Title: Windows System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel Required: None Type of Travel: None * * * The Opportunity: CACI is searching for a Windows System Administrator to support the FEMA Office of the Chief Information Security Officer (OCISO) in Washington, D.C. As a Windows System Administrator, you will play a crucial role in ensuring the security and operational r…

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Linthicum Heights, Anne Arundel County
Aug 7, 2026

Systems Administrator Location: Linthicum, Maryland Clearance: DOD Secret Clearance minimum Role Overview We are seeking a Systems Administrator with experience in Windows and Virtualization environments. This role involves deploying and securing servers, managing vulnerabilities, and troubleshooting within secure settings. Key Responsibilities • Apply STIGs, and manage patching and vulnerabilities. • Maintain the smooth operation of computer infrastructure, coordinating with various engineerin…

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Bluemont, Clarke County
May 25, 2026

Job Duties: • Systems administration of desktop and server systems connected to local and wide area networks. Desktop system management responsibilities involving account monitoring, security, Operating System (OS) installation, and other local area system administration related functions. • Provide support for implementation, troubleshooting and maintenance of IT systems and management of system infrastructure and any processes related to these systems • Provide support to IT systems including…

Windows Systems Administrator

BAE Systems ✓ Verified
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Letourneau, Warren County
Sep 21, 2026

Job Description A leader in the exciting and growing field of High Performance Computing (HPC), Team BAE is searching for a Windows System Administrator to join our team supporting the Department of Defense (DoD) High Performance Computing Modernization Program (DoD HPCMP) Engineering Research and Development Center (ERDC), Vicksburg, Mississippi. The successful candidate will be responsible for the configuration, maintenance, and installation of the supporting Windows virtual desktop infrastru…

Windows Systems Administrator

TEKsystems ✓ Verified
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Five Points, Wake County
Oct 1, 2026

Overview We're seeking a Systems Administrator to join a collaborative infrastructure team supporting a mixed Windows, virtualization, and Linux environment. This position is ideal for someone who enjoys taking ownership of core infrastructure, automating processes, troubleshooting complex issues, and working closely with developers and technical teams. The role will primarily focus on Windows Server administration, VMware management, and Active Directory support, while also providing exposure …

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Jbphh, Honolulu
Sep 2, 2026

Description Windows Systems Administrator Location: Pearl Harbor, Hawaii Security Clearance: Active TS/SCI Required Leidos is seeking a Windows Systems Administrator 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 Micr…

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Jbphh, Honolulu
Oct 10, 2026

Description Windows Systems Administrator Location: Pearl Harbor, Hawaii Security Clearance: Active TS/SCI Required Leidos 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 …

Windows Systems Administrator

RTX Corporation ✓ Verified
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Forest, Scott County
Sep 17, 2026

Date Posted: 2026-09-15 Country: United States of America Location: US-MS-FOREST-431 ~ 19859 Hwy 80 ~ BLDG 431 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance req…

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El Segundo, Los Angeles County
Sep 4, 2026

Date Posted: 2026-09-02 Country: United States of America Location: US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: Secret - Current Security Clearance Status: Active and existing securi…

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Chantilly, Fairfax County
Sep 4, 2026

Job Description Overview Working across the globe, V2X builds smart solutions designed to integrate physical and digital infrastructure from base to battlefield. We bring 120 years of successful mission support to improve security, streamline logistics, and enhance readiness. Aligned around a shared purpose, our $4.5B company and 16,000 people work alongside our clients, here and abroad, to tackle their most complex challenges with integrity, respect, responsibility, and professionalism. We are…

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Chantilly, Fairfax County
Oct 3, 2026

Windows Systems Administrator Chantilly, VA Apply ACTIVE TS/SCI SECURITY CLEARANCE AND POLYGRAPH REQUIRED Join Our Team at D2 Technical Services! Are you passionate about technology and ready to make an impact by keeping systems running smoothly? D2 Consulting is on the lookout for a motivated and skilled individual to help maintain and optimize our client’s computer systems. If you thrive in a fast-paced environment and enjoy solving complex technical challenges, this is the role for you! What…

Windows Systems Administrator with Security Clearance

American Systems Corporation ✓ Verified
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Williams Grv, Cumberland County
Sep 3, 2026

AMERICAN SYSTEMS is looking for a qualified Windows Systems Administrator ready to join a Team working for a DoD Agency based in Mechanicsburg, PA. Support includes full responsibility for managing, administering, sustaining, and securing all infrastructure required for development, testing, and production; certifying success of future production enhancements. Included in managing the infrastructure, is the timely notification to customers and end-users of Planned Maintenance and Outage Events …

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Pensacola, Escambia County
Oct 2, 2026

Description SAIC is hiring a Windows System Administrator to be located in Pensacola, FL. This position requires the ability to assist with the architectural, engineering, administration of Windows infrastructure, as well as participate in the change process and incident response processes. The Windows System Administrator will provide: * Desktop support of Windows 11 workstations in a Microsoft Active Directory environment. * Microsoft Windows Server 2019, 2022, and 2025 support of virtual and…

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Suitland, Prince George's County
Oct 16, 2026

R-00194728 Description Windows System Administrator Location: Suitland, MD Clearance: TS/SCI We are seeking an experienced Windows System Administrator in Suitland, MD to support enterprise Windows environments, system upgrades, vulnerability management, and secure configuration in a mission‑critical setting. Key Responsibilities: * Build and upgrade Windows servers and workstations. * Run and analyze ACAS vulnerability scans. * Manage GPOs, Active Directory, and domain services. * Support SCCM…

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College Park, Prince George's County
Sep 10, 2026

The Windows System Administrator position will play a pivotal role in ensuring the successful technical administration of NOAA systems within the contract. You will be responsible for providing system administration support, monitoring system performance, identifying areas for improvement, and facilitating communication between stakeholders. This position requires a keen eye for detail, strong analytical and technical skills, and the ability to work effectively in a dynamic and fast-paced envir…

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Pearl Harbor, Honolulu County
Oct 9, 2026

R-00194229 Description Windows Systems Administrator Location: Pearl Harbor, Hawaii Security Clearance: Active TS/SCI Required Leidos 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 experienc…

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Pearl Harbor, Honolulu County
Sep 22, 2026

R-00191182 Description Windows Systems Administrator Location: Pearl Harbor, Hawaii Security Clearance: Active TS/SCI Required Leidos is seeking a Windows Systems Administrator 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 ma…

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