1,538 systems administrator jobs at 616 companies in Arlington, MD

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Systems Administrator
Annapolis Junction or Washington
$150k-$175k/yr OnsiteFull Time
AeroVironment
AeroVironmentNASDAQ: AVAV: Designs and manufactures unmanned aircraft and tactical missile systems.
9+ YOERequires 9+ years of IT or systems administration experience, Linux administration, NVIDIA GPU/HPC systems, data center hardware deployment, virtualization, network troubleshooting, and strong technical writing.
Linux, NVIDIA H100, NVIDIA H200, NVIDIA B300, AWS, Large Language Model (LLM)
3mo
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Systems Administrator
Hanover, Maryland, United States
$165k-$175k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
2+ YOEWindows systems administration, AD, imaging, SSH/patching, and security compliance with TS/SCI requirements.
Windows Server, Windows Desktop, Active Directory, GPOs, PXE, MCM, PowerShell, SQL, Nagios, Confluence, Jira, Bitbucket
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
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Systems Administrator
Alexandria, Virginia, United States
$87k-$102k/yr OnsiteFull Time
American Academy of PAs
American Academy of PAs: Nonprofit national professional society representing physician associates through advocacy, education, and member resources.
5+ YOEAssociate's or bachelor's degree in IT, cybersecurity, or related field; 5+ years in systems administration, network engineering, or cybersecurity; enterprise infrastructure, Azure, SIEM, firewall, VPN, and Microsoft administration experience.
Windows Server, Active Directory, ADCS, Group Policy (GPO), DNS, DHCP, Microsoft Entra ID, Microsoft Azure, Azure Virtual Networks (VNets), Network Security Groups (NSGs), Site-to-Site VPNs, Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft Intune, SIEM, IIS, Apache, Nginx, PowerShell, Python, Linux, SQL Server, SCCM, AV/EDR/XDR
2w
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Systems Administrator
Springfield, Virginia, United States
$78k-$176k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Global firm providing management, technology, and engineering consulting services.
5+ YOERequires 5+ years in systems administration or infrastructure, Windows and Linux administration, VMware ESXi/vCenter, DNS/DHCP, networking, scripting, a bachelor's degree in IT or computer science, and Public Trust eligibility.
PowerShell, Bash, VMware vSphere, VMware ESXi, vCenter, Windows Server, Linux, RHEL, DNS, DHCP, NFS, VLANs, AWS, GCP, Azure, Python, VMware VCP, CompTIA Linux+, Microsoft Certifications
4w
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Systems Administrator
Baltimore, Maryland, United States
$80k-$95k/yr HybridFull Time
BITHGROUP Technologies
BITHGROUP Technologies: Baltimore-based HUBZone-certified minority IT services and hardware provider serving government, education, healthcare, and private organizations.
5+ YOE5+ years systems administration experience; strong Azure and Microsoft 365 administration (Intune, Entra ID, Exchange); PowerShell and multi-OS fluency; experience with virtualization, backups, security, and SOC 2 support.
Microsoft 365, Azure, Intune, Entra ID, Exchange, PowerShell, Windows, macOS, iOS, Android, Hyper-V, Red Hat Enterprise Linux (RHEL), Fortinet, Action1 (Patch Management), Blumira, Veeam, Mimecast, WordPress, Ubiquiti
3mo
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Systems Administrator
Aberdeen Proving Ground or Fort Belvoir or Huntsville or Austin or Tobyhanna Army Depot or Letterkenny Army Depot or Lakehurst
OnsiteFull Time
Envision Innovative Solutions
Envision Innovative Solutions: Private technology services providing IT, cybersecurity, program management, and mission support to government and commercial clients.
5+ YOE5+ years of systems administration; install, configure, maintain, troubleshoot OS, hardware, and network; perform backups and provide user support.
1mo
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Systems Administrator
Washington, District of Columbia, United States
$125k-$135k/yr OnsiteFull Time
Galapagos Federal Systems
Galapagos Federal Systems: Native Hawaiian-owned federal IT and professional-services contractor serving the U.S. Department of Defense and other federal clients.
5+ YOEActive TS/SCI clearance, 5+ years DoD/IC systems administration, Windows/UNIX administration, RMF/STIG experience, Microsoft 365/Exchange/SharePoint, bachelor\u0002s (or equivalent), willingness for after-hours support.
Windows Server, UNIX, Linux, Microsoft 365, Microsoft Exchange, SharePoint, Active Directory, Group Policy, MS Office, Adobe, SCC
2mo
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Systems Administrator
Reston, Virginia, United States
$118k-$201k/yr OnsiteFull Time
BAE Systems
BAE SystemsLSE: BA.: Global defense, aerospace, and security technology.
8+ YOEBachelor's degree, Intelligence Community experience, 8 years systems administration (with recent experience), and ability to obtain Top Secret/SCI with polygraph.
2w
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Systems Administrator
Washington or Silver Spring
HybridFull Time
Raye IT Consulting
Raye IT Consulting: Minority woman-owned IT consulting firm delivering technology and management services to federal, civilian, and DoD clients.
5+ YOEBachelor's degree in a relevant field, 5+ years of systems engineering experience, Azure administration certification preferred, and Public Trust clearance required.
Microsoft Azure, VMware, Microsoft Group Policy, VPN
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
3w
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Systems Administrator
Boston or Charlotte or Atlanta or Asheville or New York City or Westwood or McLean
$110k-$145k/yr HybridFull Time
Modera Wealth Management
Modera Wealth Management: Employee-owned fee-only fiduciary wealth management firm serving individuals, families, businesses, nonprofits, and retirement plans.
Experience in systems administration or infrastructure engineering with Microsoft 365, Entra ID, Intune/Endpoint Manager, network infrastructure, security practices, and clear communication.
Microsoft 365, Entra ID, Intune, Endpoint Manager, Exchange Online, Teams, SharePoint, Box, Meraki, FortiGate, CodeTwo, PowerShell
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Systems Administrator
Springfield, Virginia, United States
$78k-$176k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
5+ YOE5+ years in systems administration or infrastructure, Windows and Linux expertise, VMware management, networking, scripting, troubleshooting, bachelor's degree in IT or CS, and Public Trust determination.
PowerShell, Bash, VMware ESXi, vCenter, Windows Server, Linux, RHEL, DNS, DHCP, NFS, AWS, GCP, Azure, Python, VMware VCP, CompTIA Linux+, Microsoft Certifications, VLANs
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Systems Administrator
Washington, District of Columbia, United States
OnsiteFull Time
Knight Federal Solutions
Knight Federal Solutions: Provides defense, intelligence, and IT services to government agencies.
8+ YOEBachelor's degree or equivalent experience; 8+ years in systems administration; Windows, Linux, VMware or Hyper-V, network management, and active TS/SCI clearance required.
Windows, Linux, VMware, Hyper-V, AWS, Azure, PowerShell, Python, Bash
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
2d
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Systems Administrator
Springfield, Virginia, United States
$140k-$150k/yr OnsiteFull Time
D2 Technical Services
D2 Technical Services: Veteran-owned federal IT consulting firm delivering cybersecurity, cloud, data, and enterprise operations services to US government agencies.
5+ YOEBachelor's degree or equivalent, 5–10 years of systems administration experience, active TS/SCI clearance, Microsoft Office proficiency, troubleshooting, documentation, communication, and teamwork skills.
Microsoft Office Suite, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Tanium, Numecent, XenApp, SCCM/MECM, AVD/ThinPro/Citrix, Windows 11, Azure Virtual Desktop, ESX/vSphere4, XenDesktop, Python, PowerShell
2mo
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Systems Administrator
Alexandria, Virginia, United States
$80k-$120k/yr OnsiteFull Time
Absolute Business Solutions Corp
Absolute Business Solutions Corp: Delivering Technology Enabled Solutions to Continuously Advance Intelligence
3+ YOE3+ years of systems administration experience, proficiency with Microsoft Word/PowerPoint/Excel, bachelor\u0002s degree (or 4 additional years experience) required, TS/SCI clearance.
Microsoft Word, Microsoft PowerPoint, Microsoft Excel
2d
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Systems Administrator
Arlington, Virginia, United States
$110k-$130k/yr OnsiteFull Time
AMERICAN SYSTEMS
AMERICAN SYSTEMS: Government services contractor delivering IT and engineering solutions.
Active Top Secret clearance with SCI eligibility, Security+, and 3+ years in systems or network administration. Requires VMware, Windows Server, networking, cybersecurity, troubleshooting, and documentation expertise.
VMware, VMware vSphere, VMware ESXi, vCenter, Microsoft Windows Server, Active Directory, DNS, DHCP, Group Policy, PowerShell, Python, Cisco, Dell, Aruba, Juniper, VPN, SIEM, IDS/IPS
3d
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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
1mo
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Systems Administrator
Fort Meade, Maryland, United States
$121k-$266k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
10+ YOETS/SCI with Polygraph required; Bachelor's degree in IT or related field (or equivalent experience); 10+ years systems administration experience; DoD 8570/8140 IAT Level II; experience with firewalls, VPNs, VMware, automation (Python/Bash/Ansible), Windows/Linux administration, IAVA/STIG remediation, and Nessus.
Cisco ASA, Cisco Firepower, Palo Alto, IPSEC VPNs, ASA-to-ASA, VMware, Python, Bash, Ansible, Ansible Playbooks, Nessus, Docker, Kubernetes, Splunk, Elastic, SolarWinds, Active Directory, DNS, DHCP, PKI, LDAP