126 active directory administrator jobs at 78 companies in Arlington, MD

2w
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Active Directory Administrator
Washington, District of Columbia, United States
OnsiteFull Time
The Pictsweet Company
The Pictsweet Company: Family-owned producer and distributor of frozen vegetables.
6+ YOERequires 6+ years of experience, a bachelor's degree in IT or related field, Microsoft identity and access certification, Secret clearance, and expertise in Active Directory, RBAC, ACLs, group policies, domains, and ITIL.
Active Directory, Role Based Access Control (RBAC), Access Control List (ACL), Microsoft Group Policy, Information Technology Infrastructure Library (ITIL)
1w
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ERF Active Directory Specialist
Ashburn, Virginia, United States
$50k-$55k/yr OnsiteFull Time
Strategic Operational Solutions
Strategic Operational Solutions: Service-disabled veteran-owned IT strategy and management consulting firm serving government and enterprise clients.
3+ YOERequires three years of Active Directory administration experience, including organizational unit management, access control, workstation governance, audits, and user account lifecycle support.
Active Directory
3mo
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Active Directory Systems Administrator - TS/SCI w/Poly
Annapolis Junction or Colorado Springs or Washington or Tampa or Springfield
$128k-$173k/yr OnsiteFull Time
General Dynamics Information Technology
General Dynamics Information TechnologyNew York Stock Exchange: GD: Provider of enterprise IT services and defense solutions.
8+ YOE8+ years IT experience; TS/SCI with poly; AD DS/AD FS; GPO; DoD 8140 certs; US citizenship; onsite in Annapolis Junction, MD
Active Directory, Group Policy, DNS, Kerberos, NTLM, AD FS, Certificate Services, Federation Services
3mo
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Active Directory Systems Administrator - TS/SCI w/Poly
Annapolis Junction or Washington or Colorado Springs or MacDill AFB or Springfield
$128k-$173k/yr OnsiteFull Time
General Dynamics Information Technology
General Dynamics Information TechnologyNew York Stock Exchange: GD: Provider of enterprise IT services and defense solutions.
8+ YOE8+ years IT experience; TS/SCI with poly; AD, DNS, GPO expertise; DoD 8140 certs; US citizenship; onsite in Annapolis Junction, MD.
Active Directory, AD DS, AD FS, DNS, Group Policy, GPO, Kerberos, NTLM
2mo
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Identity/ Directory Services Administrator, Advisor
Herndon, Virginia, United States
$112k-$179k/yr OnsiteFull Time
Peraton
Peraton: Provider of mission-critical national security technologies and services.
6+ YOEActive TS/SCI (ability to pass CI Poly), 6+ years relevant experience (with Master's) or 8+ years with Bachelor's (or 12+ with HS), strong Active Directory and ICAM experience, scripting/automation, Windows Server, PKI, incident response, and Security+ or CISSP.
Active Directory, ICAM, Windows Server, PKI
2mo
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Identity/ Directory Services Administrator, Advisor
Herndon, Virginia, United States
$112k-$179k/yr OnsiteFull Time
Peraton
Peraton: Provider of mission-critical national security technologies and services.
8+ YOEActive TS/SCI (ability to obtain CI Poly), minimum ~8 years relevant experience (degree/experience combinations noted). Strong Active Directory and ICAM knowledge, scripting/automation, Windows Server, PKI, incident response, security audits; Security+ or CISSP.
Active Directory Domain Services, ICAM, Windows Server, PKI, COTS
1mo
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System Administrator (Active Clearance), Intelligence Systems
Reston, Virginia, United States
$112k-$149k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology developing AI-powered autonomous military systems.
Experience administering Windows and Linux systems, maintaining classified hardware, virtualization (VMware, KVM, Hyper-V), scripting (PowerShell, Bash), Active Directory/Group Policy, and ability to work onsite in Northern Virginia with an active Top Secret/SCI clearance and full scope polygraph.
Linux, RedHat, CentOS, Debian, Windows, Active Directory, Group Policy, PowerShell, Bash, VMware, KVM, Hyper-V
3w
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Systems Administrator
Fort Meade, Maryland, United States
$100k-$175k/yr OnsiteFull Time
VAE, Inc.
VAE, Inc.: Minority woman-owned IT infrastructure provider and value-added reseller serving government and commercial clients.
Requires active TS/SCI clearance, DoD 8570 baseline certification, server administration experience, virtualization, Active Directory, GPO, MFA, and root-cause troubleshooting expertise.
Linux, Microsoft Windows Server, Solaris, VMware, Teradici VDI, Active Directory, Group Policy Objects (GPO), PowerShell, Bash, Python
1mo
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Systems Administrator
Washington, District of Columbia, United States
$78k-$122k/yr OnsiteFull Time
Alliance Defending Freedom
Alliance Defending Freedom: Christian nonprofit legal organization providing pro bono litigation and policy advocacy to protect religious freedom.
3+ YOE3+ years systems administration experience, Windows domain/Active Directory, virtualization, Microsoft Azure, Tier I/II support, strong analytical and project management skills.
Microsoft Azure, Azure Active Directory, Active Directory, VMware, Hyper-V, KVM, OpenStack, Kubernetes, ITSM
5d
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Systems Administrator
Washington or United States
$90k-$100k/yr OnsiteContract
OmegaCor Technologies
OmegaCor Technologies: Managed IT service provider serving nonprofits, contractors, manufacturers, and growing organizations with IT, cybersecurity, and software services.
5+ YOERequires 5+ years of system administration experience, U.S. citizenship, Microsoft 365, Windows Server Active Directory, and virtualization experience; must be able to obtain Public Trust clearance.
Microsoft 365, Exchange Online, Microsoft SharePoint, Microsoft Teams, OneDrive, Microsoft Teams Voice, Windows Server Active Directory, Microsoft Entra ID (Azure AD), DHCP, DNS, GPO, Microsoft Intune, Azure, Microsoft Autopilot, Linux, macOS, LAN, WAN, Microsoft Azure Administrator, Microsoft Purview Records Management, VMware VCP
2d
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Systems Administrator
Reston, Virginia, United States
$90k-$115k/yr OnsiteFull Time
Securiport
Securiport: The Science of Safer Nations™
3+ YOEBachelor's degree in a related field and 3–5 years of systems administration or IT infrastructure experience required; strong Windows Server, Microsoft 365, Active Directory, networking, backup, and troubleshooting expertise.
Microsoft Windows Server, Microsoft Exchange Server, Microsoft 365, Active Directory, Group Policy, DNS, DHCP, Veeam, Symantec Backup, SAN, VPN, VMware, Azure
2mo
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Systems Administrator
Hanover, Maryland, United States
$165k-$175k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Global provider of engineering, technical, and mission-critical services.
2+ YOEAssociate degree or higher in a computer science-related field or two years of networking experience; Security+ CE, Windows administration, Active Directory, imaging, networking, and TS/SCI polygraph clearance required.
Microsoft Windows Server, Microsoft Windows, Active Directory, Microsoft MCM, PXE, TCP/IP, PowerShell, Microsoft SQL Server, Microsoft Certificate Authority, Atlassian Confluence, Atlassian Jira, Atlassian Bitbucket, Nagios, WhatsUp Gold, VMware, Linux
1w
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System Administrator
Springfield or Virginia or United States
$110k-$140k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Global provider of engineering, technical, and mission-critical services.
4+ YOERequires 4+ years with Windows environments, Active Directory, DNS, DHCP, TCP/IP, and network troubleshooting; active Top Secret clearance with SCI eligibility; Security+ or DoD IAT II certification; current Azure Administrator AZ-104 certification.
Microsoft Windows, Microsoft Active Directory, DNS, DHCP, TCP/IP, Windows Server 2019, Windows 11 Enterprise, Microsoft Office 2019, ACAS, HBSS, WSUS, Defense Information Systems Agency (DISA), Security Technical Implementation Guides (STIGs), Security Content Automation Protocol (SCAP/XCCDF), Microsoft Azure, VMware, HorizonView, PowerShell
1mo
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Systems Administrator
Reston, Virginia, United States
$83k-$110k/yr OnsiteFull Time
American College of Radiology
American College of Radiology: Nonprofit professional medical society serving radiology professionals through advocacy, education, research, quality standards and patient-safety programs.
3+ YOEBachelor's or equivalent, 3+ years systems administration with Windows/Linux and cloud/hybrid environments, AWS and Microsoft 365 experience, Active Directory/Entra ID, TCP/IP and Cisco networking, on-call participation.
Windows Server, Linux, AWS, EC2, S3, IAM, Microsoft 365, Microsoft Exchange Online, Microsoft SharePoint, Microsoft Teams, Active Directory, Entra ID, DNS, DHCP, GPO, TCP/IP, Cisco
1mo
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Systems Administrator
Sterling or Chantilly
$90k-$190k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provider of specialized IT and mission-critical government services.
7+ YOETS/SCI with Polygraph, CompTIA Security+, bachelor's degree, 7+ years systems engineering/administration experience, Windows Server, virtualization (VMware/Hyper-V/Nutanix), Active Directory, vulnerability remediation with Nessus.
Microsoft Windows Server, VMware, Hyper-V, Nutanix, Microsoft Exchange, Microsoft SQL Server, Skype for Business, Jira, Confluence, Nessus, Pure Storage, Dell PowerVault, Synology, RSA, CyberArk, Active Directory, DNS, DHCP, Group Policy, Microsoft SharePoint Server, MECM, SCCM, McAfee, Trellix, Nakivo, Commvault
1w
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Senior Virtualization Administrator
United States or Reston
$102k-$154k/yr RemoteFull Time
Applied Information Sciences
Applied Information Sciences: Employee-owned IT consulting firm delivering cloud, AI, modernization, and data solutions to commercial and federal organizations.
6+ YOERequires 6–8+ years of senior vSphere administration, 5+ years of senior Windows Server administration, PowerShell, disaster recovery, high availability, SAN, backup, networking, and Active Directory expertise.
VMware vSphere, ESXi, Windows Server, Windows Server 2019, Windows Server 2022, Windows Server 2025, NetApp, Veeam, PowerShell, Active Directory, DNS, TCP/IP, VLANs
2w
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Systems Administrator
Washington, District of Columbia, United States
$90k-$140k/yr OnsiteFull Time
Tripoint Solutions
Tripoint Solutions: Minority-owned federal technology contractor providing software engineering, process improvement, and lifecycle support to government customers.
5+ YOEBachelor's degree in computer science, information technology, or related field; 5+ years of systems administration experience; Windows/Linux, MECM, SCOM, Active Directory, endpoint management, cybersecurity, and Tier III support expertise.
AWS, ServiceNow, UiPath, MECM, SCOM, Windows, Linux, Active Directory, Microsoft Azure, Ansible, Puppet, PowerShell, Docker, Kubernetes
1w
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Senior Systems Administrator
Boston or New York City or Washington
OnsiteFull Time
Wolf Greenfield
Wolf Greenfield: Private intellectual-property law firm serving corporations, universities, research institutions, startups, and inventors.
10+ YOEBachelor's degree, 10+ years technical experience, and extensive Windows Server, PowerShell, Active Directory, Group Policy, VMware, backup, security, and systems administration experience.
Windows Server, PowerShell, Active Directory, Group Policy, VMware vCenter, VMware ESXi, Veeam Backup and Replication, Microsoft 365, Entra, MFA, ManageEngine PAM360, ManageEngine Endpoint Central, Azure IaaS, Terminal Services, iManage
1w
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Systems Administrator
Springfield or Herndon or Virginia
$180k-$325k/yr OnsiteFull Time
DPG Solutions
DPG Solutions: Veteran-led Colorado IT providing cleared engineering, DevSecOps, infrastructure modernization, and mission support to government and defense programs.
5+ YOERequires 5+ years of systems administration experience, Windows Server, Active Directory, VMware, System Center Configuration Manager and Operations Manager, approved security certification, US citizenship, TS/SCI, and Full Scope Polygraph.
Microsoft Windows Server, Microsoft Active Directory, VMware, Microsoft System Center Configuration Manager, Microsoft System Center Operations Manager, PowerShell, DNS, DHCP, PKI, SAN, NAS, STIGs, RMF
1mo
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System Administrator
Annapolis Junction, Maryland, United States
OnsiteFull Time
Vibrint
Vibrint: Private U.S. defense technology contractor delivering cleared technical services, computing systems, cybersecurity, and intelligence analysis to federal customers.
8+ YOE8+ years system administration with VMWare, CentOS/RHEL, VDI, Active Directory/LDAP, Infoblox, Nagios, Splunk, Salt/Ansible, Tenable Nessus, Kickstart/Cobbler; CompTIA Security+ required; TS/SCI with Polygraph required.
VMWare, VMWare Horizon, CentOS, RHEL, Citrix VDI, Active Directory, LDAP, Centrify, Infoblox, Nagios, Splunk, Salt, Ansible, Tenable Nessus, Kickstart, Cobbler, Jira, Confluence, ServiceNow