309 windows administrator jobs at 146 companies in Aberdeen, MD

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Windows Administrator (Annapolis Junction, MD)
Annapolis Junction, Maryland, United States
OnsiteFull Time
Maximus
MaximusNYSE: MMS: Government services and health administration partner for public programs.
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
3w
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Sr. Windows Systems Administrator
Columbia, Maryland, United States
$145k-$165k/yr OnsiteFull Time
Astrion
Astrion: Provider of mission-critical services for defense and federal agencies.
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
2mo
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Windows System Administrator (SA) 2 w/ Poly
Fort Meade, Maryland, United States
$150k-$180k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Global provider of engineering, technical, and mission-critical services.
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-critical 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
3mo
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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
2w
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Windows/Linux Systems Administrator
Hanover, Maryland, United States
$128k-$214k/yr OnsiteFull Time
ManTech International
ManTech International: Advancing the future of defense through innovative technology.
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
1w
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Linux/Windows System Administrator (TS/SCI w/ Poly)
Annapolis Junction, Maryland, United States
$148k-$267k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Technology and engineering solutions for defense and infrastructure.
10+ YOEActive TS/SCI with polygraph, 10+ years of experience, bachelor's degree or approved equivalent education and experience, Linux and Windows administration, software configuration, patching, and STE/STN compliance.
Linux, Windows, Microsoft PowerBI, virtual machines, Data Transfer Agent (DTA), AWS, Python
2mo
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Windows and Azure Systems Administrator
Wilmington, Delaware, United States
HybridFull Time
Qnity Electronics
Qnity ElectronicsNYSE: Q: Materials and solutions for advanced electronics and high-tech industries.
4+ YOEManage hybrid Windows Server and Microsoft Azure environments; experience with Active Directory, GPO, DNS/DHCP, PowerShell, virtualization, backup/DR and ITIL processes; bachelor's in IT or equivalent and ~4+ years' infrastructure experience preferred.
Microsoft Windows Server, Active Directory, Group Policy, DNS, DHCP, Microsoft IIS, RDS, Microsoft Azure, Azure AD/Entra ID, Azure Site Recovery, Azure Backup, Azure Arc, AD Connect, PowerShell, ARM templates, Azure Security Center, Azure Monitor, SCOM, VMware, Hyper-V
1w
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Windows & Linux Systems Administrator Staff
Fort Meade, Maryland, United States
$118k-$219k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Global security and aerospace driving innovative defense solutions.
10+ YOEBachelor's degree or equivalent experience, 10+ years of professional experience, DoD 8570 IAT Level 2 certification, security clearance and polygraphs. Linux, Windows, networking, automation, and scripting expertise required.
RHEL, CentOS, Ubuntu, Debian, Windows Server 2016, Windows Server 2019, Windows Server 2022, Active Directory, LVM, RAID, SMB, NFS, Ansible, WinRM, Bash, PowerShell, Python, Ansible Tower, AWX, Git, Arista EOS, CloudVision, eAPI, BGP, OSPF, EVPN, VXLAN, RADIUS, TACACS+, 802.1X, MACsec, Confluence, Microsoft SharePoint, Docker Swarm, Kubernetes, Apache Mesos, AWS, Azure, GCP, Docker Hub, Google Container Registry, ELK Stack, Prometheus, Nagios, Grafana, Splunk, Logstash, Jenkins, GitLab CI/CD, CircleCI, TCP/IP, HTTP, SAN, NAS, Ceph
1w
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Windows & Linux Systems Administrator Staff
Fort Meade, Maryland, United States
$118k-$219k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Global security and aerospace driving innovative defense solutions.
10+ YOEBachelor's degree and 10+ years of professional experience, or equivalent experience; DoD 8570 IAT Level 2 certification and TS/SCI with polygraph clearance required.
RHEL, CentOS, Ubuntu, Debian, Windows Server 2016, Windows Server 2019, Windows Server 2022, Active Directory, LVM, RAID, SMB, NFS, Ansible, WinRM, Bash, PowerShell, Python, Ansible Tower, AWX, Git, Arista EOS, CloudVision, eAPI, BGP, OSPF, EVPN, VXLAN, RADIUS, TACACS+, 802.1X, MACsec, Docker Swarm, Kubernetes, Apache Mesos, AWS, Azure, GCP, Docker Hub, Google Container Registry, ELK Stack, Prometheus, Nagios, Grafana, Splunk, Logstash, Jenkins, GitLab CI/CD, CircleCI, TCP/IP, HTTP, SAN, NAS, Ceph, Confluence, Microsoft SharePoint
1mo
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Systems Administrator
Annapolis Junction, Maryland, United States
$156k-$167k/yr OnsiteFull Time
Lentech
Lentech: Employee-owned federal IT and mission-technical services contractor supporting civil, defense, and intelligence agencies.
10+ YOEActive TS/SCI with FSP through MD, 10 years systems administration experience, DoD 8570 IAT Level I, experience with Devops and AWS, UNIX and Windows administration, Tier 1/2 support, system implementation, troubleshooting, and capacity planning.
Devops, AWS, UNIX, Windows
1w
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System Administrator
Fort Meade or Clearfield or United States
OnsiteFull Time
NexOne
NexOne: Private Utah government contractor providing IT, engineering, logistics, and technical support to federal agencies and military customers.
Requires 6+ years of MILSATCOM experience, Windows system administration and network management experience, DoD 8570 IA certification, and ability to obtain DoD/NACI IT Level I certification.
Active Directory, Wideband Satellite Communications (SATCOM), Risk Management Framework (RMF), Information Assurance (IA), Operating Systems, WSOTS, Network Control and Earth Terminal (ET), Local Area Networks/Wide Area Networks (LAN/WAN), Windows, IASO, SIPR, NIPR
3mo
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System Administrator
Annapolis Junction, Maryland, United States
OnsiteFull Time
Entegra Systems
Entegra Systems: Employee-owned national-security contractor providing intelligence, technology, language, operations, and training services to U.S. government agencies.
10+ YOESenior System Administrator with 10 years LAN/WAN, 5 years hardware/software ops, Linux and Windows, SELinux, scripting, and security compliance; TS/SCI with Poly clearance.
Linux, Windows, SELinux, RPM, Log review, Scripting, Python, Bash, PowerShell, Ansible
2w
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Systems Administrator
Fort Meade, Maryland, United States
$146k-$234k/yr OnsiteFull Time
Peraton
Peraton: Provider of mission-critical national security technologies and services.
7+ YOERequires 7-16+ years based on degree, Windows and Unix administration, virtualization, security and containerized application skills, DOD IAT II certification, active TS/SCI or ability to obtain SCI, and U.S. citizenship.
Windows, Unix, Linux, Endpoint Security, Infrastructure as Code (IaC)
2mo
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Network Administrator
Sparks, Maryland, United States
$80k-$85k/yr HybridFull Time
Enhanced Computing Solutions
Enhanced Computing Solutions: Private Maryland IT services providing managed technology, cybersecurity, cloud, and consulting services to small businesses.
2+ YOE2+ years network engineering and systems administration experience; strong TCP/IP, VPN, SonicWall, Windows Server, Azure, and Microsoft 365 knowledge; experience with ConnectWise Manage and ITBoost; mentoring and client-communication skills.
ConnectWise Manage, ITBoost, Screen Connect, Windows Server, Azure, SonicWall, Microsoft 365, TCP/IP, VPN, RMM, PSA, Cybrary.it
1mo
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Senior System Administrator
Annapolis Junction, Maryland, United States
$190k-$240k/yr OnsiteFull Time
Freedom Technology Solutions Group
Freedom Technology Solutions Group: Provides IT consulting and government technology services.
15+ YOE15 years system administration experience, Windows and Linux server administration, IAVA patching, DoD 8570 IAT Level I, bachelor's degree in technical discipline (or 5 years additional SA experience), scripting and automation experience.
Linux, Windows, IAVA, PowerShell, Ansible, Terraform, AWS, EC2, Lambda, CloudFormation, PHP, .NET, C#, Microsoft SQL Server, Oracle
2mo
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Systems Administrator
Windsor Mill, Maryland, United States
$60k-$70k/yr OnsiteFull Time
RELI Group
RELI Group: Trusted Government Partner for Digital Transformation, Health, and Security
3+ YOEOnsite 5 days/week in Windsor Mill. Minimum 3 years system administration/helpdesk experience. Strong knowledge of Windows Server, Active Directory, Microsoft Exchange/Office 365, DNS, DHCP, group policy, virtualization, backups, VPN/MDM, and Tier 2 troubleshooting.
Windows Server, Linux, Active Directory, Microsoft Exchange, Microsoft Office 365, DNS, DHCP, Group Policy, VMware, Hyper-V, VPN, MDM
2mo
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Junior Systems Administrator
Fort Meade, Maryland, United States
OnsiteFull Time
VTG
VTG: Provider of national security and digital transformation solutions.
TS/SCI with Poly required. System administration on CentOS 7, Rocky 9, RHEL 9; hardware installation; Linux and Windows 10/11 administration; STE and data transfer experience. Ansible, Proxmox, IDM, RHCSA, TLS, PXE and LDAP integration desired.
CentOS 7, Rocky 9, RHEL 9, Customer Secure the Enterprise (STE), Linux, Ansible, PXE boot, Proxmox, Identity Manager (IDM), LDAP, Red Hat Certified System Administrator, Transport Layer Security (TLS), Windows 10, Windows 11
2mo
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Systems Administrator
Windsor Mill, Maryland, United States
$60k-$70k/yr OnsiteFull Time
RELI Group
RELI Group: Trusted Government Partner for Digital Transformation, Health, and Security
3+ YOEOnsite 5 days/week in Windsor Mill, MD. 3+ years system administration/helpdesk experience. Strong knowledge of Windows Server, Active Directory, Exchange/O365, DNS, DHCP, Group Policy, virtualization, backups, VPN, MDM, and ticketing/remote support; relevant certifications a plus.
Windows Server, Active Directory, Microsoft Exchange, Microsoft O365, DNS, DHCP, Group Policy, VMware, Hyper-V, VPN, MDM
23h
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Systems Administrator Lead
Aberdeen Proving Ground, Maryland, United States
$116k-$254k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provider of specialized IT and mission-critical government services.
10+ YOEActive Secret clearance, master's degree in a specified engineering or computer field, and 10+ years of systems administration experience. Requires Windows/Linux, identity management, security compliance, troubleshooting, and technical leadership.
Windows, Linux, Active Directory, Group Policy, DNS, DHCP, PowerShell, Bash, Python, VMware, Hyper-V, AWS, Azure, Docker, Kubernetes, Ansible, Terraform, Puppet, CompTIA Security+, CompTIA Network+, CompTIA Server+, CompTIA Linux+, MCSA, MCSE, RHCE, Risk Management Framework (RMF), Authorization to Operate (ATO), DISA Enterprise Mission Assurance Support Service (eMASS), Assured Compliance Assessment Solution (ACAS/Nessus), Veeam, Commvault, Splunk, ELK, SCCM, Satellite, STIGs, NIST 800-53