900 security administrator jobs at 395 companies in Poolesville, MD

1mo
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Personnel Security Specialist
Arlington, Virginia, United States
$85k-$105k/yr OnsiteFull Time
American Systems
American Systems: Providing engineering and IT solutions to federal government agencies.
5+ YOEActive Top Secret clearance with SCI eligibility, 5+ years DoD/IC personnel security experience, hands-on PAR/SPI/SCI processes, DISS and Scattered Castles experience, strong communication and Microsoft Office skills.
DISS, Scattered Castles, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Microsoft SharePoint
2mo
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Security/Systems Administrator
Sterling, Virginia, United States
OnsiteFull Time
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
TS/SCI with Polygraph required Day 1; support CSP CDS environments; change control, access management, security monitoring, auditing, and accreditation activities.
4w
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Security Systems Administrator
Orlando or Reston or Tampa or United States
RemoteFull Time
Advanced IT Concepts
Advanced IT Concepts: Provides IT systems integration and simulation training for defense.
2+ YOE2+ years supporting and securing enterprise systems, network and cloud environments; knowledge of hardening, patching, vulnerability and incident response; strong troubleshooting and communication skills.
Windows Server, Linux, Entra ID, Group Policy, Purview, Intune, AWS, Microsoft Azure, Google Cloud Platform
2w
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IT Security Administrator
Baltimore, Maryland, United States
$120k-$140k/yr OnsiteFull Time
Chase Brexton Health Care
Chase Brexton Health Care: Provides comprehensive medical, behavioral, and dental healthcare services.
3+ YOEMinimum 3 years IT/security experience, CISSP required, CCNA/CCNE and VMware experience preferred, Windows Server/Office365/Azure knowledge, ability to support 24x7 on-call incident response and DR/BCP.
MS Azure, Imprivata, VMware, Office 365, Cisco Catalyst, Cisco ASA, Microsoft Group Policy, Windows Server
4d
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Security Systems Administrator - Mid-level
Annapolis Junction, Maryland, United States
$105k-$154k/yr OnsiteFull Time
Boeing Intelligence & Analytics
Boeing Intelligence & AnalyticsNYSE: BA: Delivers intelligence, analytics, and cyber solutions for national security.
8+ YOERequires 8 years of systems administration experience or related work, with TS/SCI and active CI polygraph. Experience with security infrastructure, firewalls, IDS/IPS, VPN, incident response, network security, and routing protocols.
firewalls, IDS/IPS, VPN, MPLS, HAIPE/IP, QoS, WAN, SFTP, FTPS, SCP, AWS, Microsoft Azure, Google Cloud, Python, PowerShell, Bash, SOAR, ServiceNow, Remedy, Jira Service Management
1w
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Security & Compliance Administrator
Doral or McLean or Melbourne or Huntsville or Atlanta or Annapolis Junction or Colorado Springs or Fayetteville
$99k-$225k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
2+ YOEExperience conducting security audits, enforcing policies, managing SIEMs/vulnerability scanners/identity solutions, ensuring DoD/IC compliance, Secret clearance, bachelor’s in cybersecurity or 2+ years (or 5+ years without degree).
SIEMs, Splunk, Microsoft Defender, AWS Security Hub, Azure Security Center, Tenable Nessus
3mo
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Personnel Security Administrator – Junior w/ TS/SCI with FSP
Herndon, Virginia, United States
OnsiteFull Time
VMD Corp
VMD Corp: Provides airport security screening and federal IT services.
1+ YOEEntry-level security data-entry role requiring TS/SCI w/ Full Scope Poly, HS diploma, 1 year data entry/security processing experience.
4d
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Facility/Security Administrator (Washington, DC)
Virginia or Springfield or Washington
OnsiteFull Time
Hui Huliau
Hui Huliau: Provides government contracting services benefiting Native Hawaiian communities.
Administer physical, personnel, and information security programs; manage classified information, access controls, security systems, records, incidents, inspections, and compliance activities. Lift 40 pounds and work in a warehouse.
card reading badge access control system, facility alarm system, security camera, government security systems, pallet jacks
2mo
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Systems Administrator and Security Analyst
Fort Belvoir, Virginia, United States
$78k-$176k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
7+ YOE7+ years Linux systems engineering/administration with RHEL 8/9, shell scripting, virtualization, containerization, monitoring/security tools (ACAS, SCAP, STIG Viewer, Nessus), RMF compliance, networking knowledge, Secret clearance, HS diploma/GED.
Red Hat Enterprise Linux (RHEL), RHEL 8, RHEL 9, ACAS Security Center, Evaluate STIG, SCAP, STIG Viewer, Nessus Scanner, VMware, Hypervisor, KVM, Docker, Podman, Kubernetes, Risk Management Framework (RMF), CI/CD pipelines
1d
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93-012 – Security Administrator/Visitor Control (SA/VC)
Andrews Air Force Base, Maryland, United States
$72k/yr OnsiteFull Time
Sandy Mac Evolution
Sandy Mac Evolution: Veteran-owned provider of security and professional defense services.
1+ YOERequires 1–2 years of related security experience, active Secret clearance, ability to obtain Top Secret/SCI/SAP eligibility, and willingness to undergo a counterintelligence polygraph.
Counterintelligence Polygraph (CI Polygraph)
2w
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Office Administrator – National Security Program Area
Laurel, Maryland, United States
$27-$46/hr OnsiteFull Time
Johns Hopkins University Applied Physics Laboratory
Johns Hopkins University Applied Physics Laboratory: Conducts research and engineering for national security and space.
10+ YOEAssociate's degree or equivalent, 10+ years administrative/programmatic experience, MS Office proficiency, active Top Secret clearance (TS/SCI attainable), U.S. citizenship, strong written and oral communication.
Microsoft Office, APL business systems
1mo
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IT Security Administrator (Frederick, Maryland, MD, US, 21704)
Frederick, Maryland, United States
$93k/yr OnsiteFull Time
STULZ Air Technology Systems
STULZ Air Technology Systems: Manufactures precision cooling and humidification systems for data centers.
3+ YOEMinimum 3 years IT/cybersecurity experience; administer endpoint security, identity and vulnerability management; incident response, NIST documentation, Microsoft security technologies; strong analytical, communication, and troubleshooting skills.
endpoint security platforms, identity management, vulnerability management, NIST, Microsoft security technologies, Multi-Factor Authentication, Conditional Access
2mo
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Physical Security System Administrator 
Washington or Virginia or United States
OnsiteFull Time
Unlimited Technology
Unlimited Technology: Provides integrated physical security, cybersecurity, and managed technology services.
Onsite Washington, DC role supporting Federal PACS; Top Secret/SCI eligibility required. Must be proficient with Windows/Active Directory, PACS and video management, integrations (Splunk, USAccess, SMTP), and have CCURE9000 training; CISSP preferred.
Windows, Active Directory, PACS, CCURE9000, Splunk, USAccess, SMTP, Video Management
4d
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Secure Facility Attendant / Computer Security Administrator
Adelphi, Maryland, United States
$66k-$100k/yr OnsiteFull Time
HII
HIINYSE: HII: Builds naval ships and provides global defense technology solutions.
0+ YOEHigh school diploma or equivalent and 0–2 years of relevant experience. Requires ability to obtain a Secret clearance, basic computer literacy, detail-oriented recordkeeping, discretion, communication, and reliable onsite availability.
Windows, Linux
3mo
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Security Specialist - Administrative
Arlington, Virginia, United States
OnsiteFull Time
Technology Security Associates
Technology Security Associates: Provides specialized engineering and security services for defense programs.
1+ YOEMinimum 1+ years of general security experience; Top Secret clearance; strong organizational, communication, and MS Office skills.
Microsoft Office
2mo
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Security Admin 2 - Tysons, VA
Tysons, Virginia, United States
OnsiteFull Time
M.C. Dean
M.C. Dean: Design-build and systems integration for complex, mission-critical infrastructure.
6+ YOEHigh School/GED; ability to obtain and maintain DoD Top Secret/SCI clearance; 6+ years personnel security administration; proficiency with DISS, NISS, ACCS, SIMS, C•Cure, SWFT; strong Microsoft Office skills and attention to detail.
DISS, NISS, ACCS, SIMS, Trust Visitor, C•Cure, First Advantage, SWFT, Microsoft Office Suite, Microsoft Excel, Microsoft Word, Microsoft PowerPoint
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
1w
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HRIS Administrator/HR Administrator
San Antonio or Alexandria
HybridFull Time
Research Innovations
Research Innovations: Provides software and cybersecurity solutions for national defense agencies.
3+ YOE3+ years HR or operations experience supporting onboarding, payroll, benefits, HRIS administration, reporting, and employee relations; strong Excel and HR technology skills; ability to obtain DOD security clearance.
Microsoft Excel, Paylocity, Workday, Unanet, Costpoint, Lever, ServiceNow, JIRA, Google Workspace
1w
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Systems Administrator
Baltimore, Maryland, United States
$80k-$95k/yr HybridFull Time
Bithgroup Technologies
Bithgroup Technologies: Provides IT services and hardware solutions to 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
5d
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System Administrator
Arlington or Blacksburg
$80k-$100k/yr OnsiteFull Time
Virginia Tech
Virginia Tech: Public land-grant university providing higher education and research.
Bachelor's degree or equivalent experience, Windows or Linux administration, networking, identity and access management, monitoring, forensics, recovery, scripting, and NIST or CMMC compliance experience.
Windows, Linux, VMware, Hyper-V, PowerShell, Python, Bash, NIST, CMMC, CIS, FERPA, TCP/IP, DNS, DHCP, VPN, A+, Network+, Security+, GIAC Security Essentials Certification (GSEC)