766 security administrator jobs at 343 companies in Middletown, MD

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Security Administrator
Chantilly or North America
$31-$41/hr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Global provider of engineering, technical, and mission support services.
1+ YOEHigh school diploma/GED, active Top Secret clearance, and 1+ year security-related experience required; senior levels require 3–5 or 7+ years. Must obtain and maintain a polygraph.
Microsoft Office Suite, fax machines, scanners, multi-line phone systems
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.
1w
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Security System Administrator
Laurel, Maryland, United States
$110k-$130k/yr OnsiteFull Time
Antenna Research Associates
Antenna Research Associates: Designs and manufactures advanced antenna and C5ISR RF systems.
3+ YOE3+ years system administration in cybersecurity/compliance environments, experience with classified systems, Windows/Linux administration, AD/DNS/DHCP/Group Policy, RMF/NIST 800-53, system hardening and vulnerability remediation, and strong troubleshooting skills.
STIG, SCAP, Active Directory, DNS, DHCP, Group Policy, RMF, NIST 800-53, SIPRNet, COMSEC, Windows Server, Linux, VMware
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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
1w
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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
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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.
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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
3w
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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
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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
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
1w
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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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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
6h
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Database Administrator
Arlington, Virginia, United States
RemoteFull Time
Electrosoft Services
Electrosoft Services: Federal cybersecurity, digital engineering, and IT solutions provider
10+ YOEMaster's degree and 10 years of enterprise IT experience required. Requires database administration, security, recovery, tuning, infrastructure, cloud, and ITIL knowledge; U.S. citizenship and ability to obtain DHS security suitability or clearance.
Oracle, Microsoft SQL Server, PostgreSQL, MySQL, MongoDB, Microsoft Windows, Linux, Microsoft Azure, AWS, Google Cloud Platform, Oracle RAC, SQL Server Always On, NIST RMF, NIST SP 800-53, FISMA, CDM, Zero Trust, SolarWinds, Splunk, Dynatrace, AppDynamics, Nagios, DevOps, Infrastructure as Code (IaC)
1w
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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)
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Systems Administrator
Washington, District of Columbia, United States
$90k-$120k/yr OnsiteFull Time
ValidaTek
ValidaTek: Provides IT modernization and systems engineering for federal agencies.
5+ YOESupport and maintain Windows and Linux enterprise systems, automate tasks, harden security per STIG/CIS, perform vulnerability remediation, and provide operational support in a DHS environment.
Red Hat Enterprise Linux (RHEL), Bash, PowerShell, STIGs, OSCAP, CIS Benchmarks, Microsoft Active Directory, Group Policy Object (GPO), SCCM, WSUS, Tenable.SC, SecurityCenter, Nessus, VMware vSphere (ESXi), VMware Workstation, Microsoft Windows Server, Microsoft SQL Server, Oracle DBMS, LDAP, SharePoint, McAfee
2w
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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: Provides fee-only financial planning and investment management services.
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
1w
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Systems Administrator
Arlington, Virginia, United States
$70k-$110k/yr OnsiteFull Time
Tecolote Research
Tecolote Research: Provides defense acquisition consulting, analytics, and software solutions.
7+ YOE7+ years systems administration experience preferred, DoD security clearance and US citizenship required, CompTIA Network+ and Security+ required, Windows Server/SQL/IIS experience, NIST knowledge, ability to obtain DoD IA Level II.
Microsoft Windows Server, SQL Server, IIS, Host Based Security System (HBSS)