715 windows administrator jobs at 320 companies in Arlington, MD

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Windows Systems Administrator
Arlington, Virginia, United States
OnsiteFull Time
Integrated Computer Solutions
Integrated Computer Solutions: A government services provider delivering enterprise IT, mission IT, and cybersecurity capabilities.
10+ YOERequires active Top Secret clearance with SCI eligibility, DoD 8140/8570 IAT-II certification, and 10 years of enterprise Windows systems engineering or administration experience.
Windows, Active Directory, VMware, Virtual Desktop, DNS, DHCP, SAN, PowerShell
1mo
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Windows System Administrator
College Park, Maryland, United States
OnsiteFull Time
Entarian
Entarian: Provides mission-critical engineering and technology solutions for government agencies.
1+ YOE1-3 years Windows systems administration experience; manage ServiceNow ticket queues; troubleshoot Windows 10-11; administer Active Directory, DNS, user accounts; ability to lift 50 lbs; U.S. citizenship and Public Trust clearance eligibility.
ServiceNow, Active Directory, Windows 10-11, DNS
2w
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Windows Administrator (Annapolis Junction, MD)
Annapolis Junction, Maryland, United States
OnsiteFull Time
Maximus
MaximusNYSE: MMS: Provides government health and human services program administration.
7+ YOERequires active Secret clearance, 7+ years of related experience, high school diploma/GED, Windows server administration expertise, and availability for five days onsite and rotational emergency on-call coverage.
Windows, Windows 2008, Windows 2012R2, Windows 2016R2
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Windows Systems Administrator
Washington, District of Columbia, United States
OnsiteFull Time
Empower AI
Empower AI: Providing AI-enabled technology solutions for federal government agencies.
5+ YOERequires 5+ years of experience, a bachelor's in IT or related field, Microsoft Windows Server Hybrid Administrator certification, and Secret clearance. Sec+ and ITIL 4 are preferred.
Active Directory (AD), System Center Configuration Manager, Travel Document Issuance System, Passport Records Imaging System Management, Automated Cash Register System, vSphere Installation Bundles (VIBs), Oracle, SQL, ServiceNow
3w
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Senior Windows Systems Administrator
Washington or Sterling or United States
$112k-$179k/yr RemoteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
10+ YOEU.S. citizen with active Secret clearance, 10+ years Windows Server administration, 7+ years Active Directory experience, 3+ years PowerShell/VB scripting, and knowledge of government IT security.
Windows Server, Microsoft Active Directory, PowerShell, VBScript, Microsoft Project, Microsoft Visio, Windows 11
2w
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Windows Systems Administrator
Alexandria, Virginia, United States
$140k-$200k/yr OnsiteFull Time
B&A
B&A: Provides IT systems integration and data services to federal agencies.
0+ YOEAdminister and sustain Windows server/workstation environments, support LAN/WAN operations, diagnose and resolve complex system/network issues; TS/SCI clearance required; 0+ years specialized experience; bachelor\u0002s degree preferred.
Windows Server
4w
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Windows Senior System Administrator
Germantown, Maryland, United States
$100k-$120k/yr OnsiteFull Time
Edgewater Federal Solutions
Edgewater Federal Solutions: Provides IT and cybersecurity services to federal government agencies.
2+ YOEUS citizen with active Top-Secret or Q clearance,2+ years Windows Server administration,AD/GPO management,WSUS/SCCM patching,DISA STIG hardening,documentation skills,and ability to lift 50 lbs and mentor junior staff.
Windows Server, WSUS, SCCM, DISA STIGs, Active Directory, Group Policy Objects (GPO), MS Hyper-V, VMWare ESXi, VMware Horizon vCenter, PKI
3mo
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Linux/Windows Systems Administrator
Springfield, Virginia, United States
OnsiteFull Time
Ascension Federal Services
Ascension Federal Services: Provides IT services without mentioning the name.
4+ YOE4 years of experience in Linux/Windows server administration; Bachelor's in IT; Security+ or equivalent; Secret clearance.
Linux, Windows, Bash, Python, PowerShell, VMware, Hyper-V, Docker, Kubernetes, Ansible, Puppet, Chef, AWS, Azure, GCP, Firewalls, Security best practices
2mo
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Senior Windows Systems Administrator
Bethesda, Maryland, United States
OnsiteFull Time
Black Canyon Consulting
Black Canyon Consulting: Provides specialized IT and scientific support to federal agencies
5+ YOE5+ years Windows systems administration experience, deep Active Directory expertise, hybrid cloud (AWS/GCP) experience, strong PowerShell automation skills, and hands-on experience with Microsoft server ecosystem and MECM/SCCM.
Windows Server 2019, Windows Server 2022, Active Directory (AD DS), Microsoft Entra ID, ADFS, IIS, SQL Server, Hyper-V, Microsoft Configuration Manager (MECM / SCCM), WSUS, Group Policy (GPO), System Center Virtual Machine Manager, Amazon Web Services, Google Cloud Platform, Microsoft Azure, PowerShell, Kerberos, NTLM, SAML
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Senior Windows Systems Administrator
Washington or Sterling
$112k-$179k/yr RemoteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
10+ YOEExperience administering Windows Server (2016-2025), Active Directory, DNS/DHCP, PowerShell/VBScript scripting, knowledge of gov IT security, and U.S. citizenship with active Secret clearance.
Windows Server, Active Directory, PowerShell, VBScript, Microsoft Project, Microsoft Visio, Windows 11, DNS, DHCP, EMR
3w
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Windows Server OS Administrator
McLean, Virginia, United States
$85k-$100k/yr RemoteFull Time
American Systems
American Systems: Providing engineering and IT solutions to federal government agencies.
6+ YOE6+ years supporting Windows Server in enterprise datacenters, Azure/AVS experience, PowerShell and infrastructure automation (Ansible), ability to obtain Public Trust, US work authorization, strong communication and ITIL experience.
Windows Server, VMware vSphere, Azure, Azure Monitor, Azure Update Management, Defender for Cloud, Azure VMware Solution (AVS), AWS, GCP, PowerShell, Ansible, GitLab, Carbon Black, CyberArc, Defender EM, Remedy, ServiceNow, Active Directory, DNS, DHCP, Group Policy
2w
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Sr. Windows Systems Administrator
Columbia, Maryland, United States
$145k-$165k/yr OnsiteFull Time
Astrion
Astrion: Provides engineering, cybersecurity, and mission support services.
8+ YOEActive TS/SCI clearance, bachelor's or equivalent, 8+ years Windows/AD admin in classified DoD environments, RMF/STIG/C2C experience, PowerShell automation, MECM/WSUS patching, ACAS/Nessus/SCAP and SIEM familiarity.
Windows Server, Windows 11, Active Directory, PowerShell, Microsoft Endpoint Configuration Manager, MECM, WSUS, MDT, WDS, ACAS, Nessus, SCAP, SIEM, Microsoft SharePoint, Hyper-V, NetApp, SAN, Git, Microsoft Defender for Endpoint, AppLocker, WDAC, Azure Government
2w
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Windows System Administrator - 2nd Shift
Arlington, Virginia, United States
OnsiteFull Time
GCyber
GCyber: Provides specialized cybersecurity and IT modernization for government agencies.
8+ YOERequires Top Secret/SCI clearance, bachelor's degree in a related discipline, 8+ years of relevant experience, IAT II certification, Windows Server expertise, and working Linux knowledge.
Windows Server, Linux
1mo
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Windows System Administrator (SA) 2 w/ Poly
Fort Meade, Maryland, United States
$150k-$180k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
10+ YOETS/SCI with poly required; Bachelor's in CS/Cyber/IT (or extensive experience); 10+ years SA experience; DoD 8570 IAM Level I; Windows/UNIX system administration, monitoring, troubleshooting, and capacity planning.
UNIX, Windows
1mo
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Windows System Administrator (SA) 2 with Poly
Fort Meade, Maryland, United States
$140k-$180k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Global provider of engineering, technical, and mission support services.
10+ YOERequires 10 years of system administration experience, a technical bachelor's degree or 14 years' experience, IAM Level I certification, and TS/SCI with polygraph clearance.
UNIX, Windows
2mo
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Sr Principal Windows / VMWare Systems Administrator - Polygraph
Linthicum, Maryland, United States
$123k-$185k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
8+ YOESenior Windows/VMware systems administrator for classified environment; TS/SCI with polygraph; Windows AD, GPOs; 8140 baseline; on-site in Linthicum, MD.
Windows, VMware, Active Directory, GPOs, DNS, DHCP, LDAP, Linux
2mo
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Sr Principal Windows / VMWare Systems Administrator - Polygraph
Linthicum Heights, Maryland, United States
$123k-$185k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
4+ YOERequires Top Secret/SCI with recent polygraph, IAT Level II baseline certification (e.g., Security+ CE), experience designing/maintaining Windows domain architectures and VMware, and minimum 4 years IT experience (degree/experience trade-offs provided).
VMWare, Active Directory, GPOs, Windows, Linux, RedHat, Cohesity, Veritas, HBSS, Solar Winds, Splunk, Cisco, RMF, STIG, NISPOM, DCID 6/3-ICD 503, JAFAN, JSIG
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Windows/Linux Systems Administrator
Hanover, Maryland, United States
$128k-$214k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
10+ YOEBachelor's degree in a technical discipline plus 10 years of systems administration experience, or 15 years without a degree. Requires Windows, Linux, networking, infrastructure, scripting, and troubleshooting expertise.
Windows 11, Ubuntu, Fedora, Juniper, DNS, DHCP, Active Directory, Group Policy, Remote Desktop Services, Hyper-V, PowerShell, Cisco, Dell, HP Device Manager, Splunk, Zabbix, Syslog-ng
1mo
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Windows & Linux Systems Administrator
Washington, District Of Columbia, United States
$110k-$140k/yr HybridFull Time
ASM ResearchNYSE: ACN: Provides IT and healthcare services to government agencies.
3+ YOE3+ years Windows/Linux systems administration experience, Active Directory, GPO, SCCM/MECM, virtualization, PowerShell and Bash proficiency; bachelor\u0002s degree or equivalent and ability to obtain Public Trust clearance.
Microsoft SCCM/MECM, Azure Update Management (AUM), Group Policy Objects (GPO), Active Directory, DNS, DHCP, SSH, cron, NFS, Apache, Nginx, Microsoft Universal Print, Hyper-V, VMware, Azure VMs, Bash, PowerShell, Ansible, Puppet
3w
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Windows Systems Administrator
Arlington, Virginia, United States
OnsiteFull Time
Tetrad Digital Integrity
Tetrad Digital Integrity: Provides cybersecurity performance management software and specialized consulting services.
4+ YOEActive TS/SCI clearance, DoD 8750 IAT Level II (e.g. Security+ce), 4+ years Windows server experience, VMware, PowerShell/Python, DISA STIGs, AD/GPO, RDS, SCAP, and strong documentation and troubleshooting skills.
VMware, Remote Desktop Services, PowerShell, Python, Security Content Automation Protocol (SCAP), Group Policy Management (GPO), Windows Task Scheduler, Active Directory, DISA STIGS, BMC Remedy, Linux, Solaris, SAN, NAS, TCP/IP