242 windows server administrator jobs at 136 companies in Colesville, MD
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Windows Server OS Administrator
McLean, Virginia, United States
$85k-$100k/yrRemoteFull Time
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
ManTech: Provides technology solutions for defense and intelligence agencies.
2+ YOEExperience installing/configuring Windows Server (2016/2019/2022), AD DS, virtualization, patching/WSUS/MECM, DISA STIG hardening, and creating security documentation; active TS/SCI clearance required.
Windows Server 2016, Windows Server 2019, Windows Server 2022, Microsoft Active Directory Domain Services (AD DS), VMware vSphere, ESXi, Microsoft Hyper-V, Microsoft Endpoint Configuration Manager (MECM), SCCM, Windows Server Update Services (WSUS), ACAS, Nessus
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
10+ YOE10+ years administering enterprise Windows servers and cloud infrastructure across 2000+ servers; senior MS Server administration, PowerShell/VBScript scripting, VMware vSphere, AD/Entra, SCCM, patching, vulnerability remediation; U.S. citizen/green card holder able to obtain Public Trust.
Windows Server, Microsoft Graph, Microsoft PowerShell, VBScript, VMware vSphere, Active Directory, Microsoft Entra, System Center Configuration Manager (SCCM), Microsoft Endpoint Configuration Manager (MECM), Tenable Nessus, Qualys WAS, Inviciti, BigFix, Dell OpenManage Enterprise, Power BI, Microsoft Intune, AWS, Azure, Google Cloud, Oracle Cloud, ITSM
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
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
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
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
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
Quantum Sky: Engineers mission-critical technology for federal government and defense sectors.
8+ YOE8+ years Windows systems administration experience; architecture and support of Windows infrastructure including AD, Group Policy, DNS, patching, file servers, Exchange; SCCM/MDT; backup/DR; troubleshooting; strong communication; travel up to 20%.
Active Directory, Group Policy, DNS, SCCM, MDT, Exchange Server, PowerShell, Python, Bash, VMware, Hyper-V, KVM, SQL Server, ServiceNow
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.
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
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
NCIS Windows Systems Administrator | Active Top Secret clearance
Quantico, Virginia, United States
$94k-$108k/yrHybridFull Time
GDITNYSE: GD: Delivers IT and mission services to government agencies.
5+ YOERequires 5+ years of Windows systems administration, an active Top Secret clearance, CompTIA Security+, a computer science or IT bachelor's degree or equivalent, Windows Server expertise, and US citizenship.
Microsoft Windows Server, Mobile Device Management (MDM), Active Directory Federation Services (AD FS), Active Directory, DNS, DHCP, PowerShell, LDAP, Windows 11, DISA STIGs, ServiceNow
V2XNYSE: VVX: Provides logistics, facility management, and mission support services.
7+ YOE7+ years Windows systems experience; hands-on Active Directory, LDAP, Centrify; security patching, PowerShell/VB scripting; experience with Windows Server 2008/2012/2016, SCOM, ACS, Microsoft Exchange/Outlook, and enterprise antivirus.
Active Directory, LDAP, Centrify, PowerShell, VB, Windows Server 2008, Windows Server 2012, Windows Server 2016, Microsoft System Center Operations Manager (SCOM), Access Control Service (ACS), Microsoft Exchange, Microsoft Outlook, Symantec, McAfee, VMware 5, Cisco, TCP/IP, LAN, SAN
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
IT Systems Administrator (Windows, Zscaler, Solarwind)
Washington, District of Columbia, United States
$92k-$138k/yrOnsiteFull Time
NTT DATA: Global provider of IT and business consulting services.
4+ YOE4+ years supporting Windows servers and PCs, ability to obtain Public Trust clearance, knowledge of AD/DNS/DHCP, SCCM/Intune, PowerShell, SolarWinds, Zscaler, M365, and strong documentation skills.
Windows Server, Active Directory, Group Policy, DHCP, DNS, Azure, SCCM, Intune, PowerShell, SolarWinds, Zscaler, M365