852 security administrator jobs at 365 companies in Dumfries, VA
1mo
Save
Mark Applied
Hide
Security Administrator
Chantilly or North America
$31-$41/hr OnsiteFull Time
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
Save
Mark Applied
Hide
Personnel Security Specialist
Arlington, Virginia, United States
$85k-$105k/yr OnsiteFull Time
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
Save
Mark Applied
Hide
Security/Systems Administrator
Sterling, Virginia, United States
OnsiteFull Time
TS/SCI with Polygraph required Day 1; support CSP CDS environments; change control, access management, security monitoring, auditing, and accreditation activities.
1w
Save
Mark Applied
Hide
Security System Administrator
Laurel, Maryland, United States
$110k-$130k/yr OnsiteFull Time
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
1mo
Save
Mark Applied
Hide
Security Systems Administrator
Orlando or Reston or Tampa or United States
RemoteFull Time
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
6d
Save
Mark Applied
Hide
Security Systems Administrator - Mid-level
Annapolis Junction, Maryland, United States
$105k-$154k/yr OnsiteFull Time
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
Save
Mark Applied
Hide
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
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
Save
Mark Applied
Hide
Personnel Security Administrator – Junior w/ TS/SCI with FSP
Herndon, Virginia, United States
OnsiteFull Time
1+ YOEEntry-level security data-entry role requiring TS/SCI w/ Full Scope Poly, HS diploma, 1 year data entry/security processing experience.
1w
Save
Mark Applied
Hide
Facility/Security Administrator (Washington, DC)
Virginia or Springfield or Washington
OnsiteFull Time
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
Save
Mark Applied
Hide
Systems Administrator and Security Analyst
Fort Belvoir, Virginia, United States
$78k-$176k/yr OnsiteFull Time
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
4d
Save
Mark Applied
Hide
93-012 – Security Administrator/Visitor Control (SA/VC)
Andrews Air Force Base, Maryland, United States
$72k/yr OnsiteFull Time
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)
3w
Save
Mark Applied
Hide
Office Administrator – National Security Program Area
Laurel, Maryland, United States
$27-$46/hr OnsiteFull Time
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
2mo
Save
Mark Applied
Hide
Physical Security System Administrator
Washington or Virginia or United States
OnsiteFull Time
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
Save
Mark Applied
Hide
Security Specialist - Administrative
Arlington, Virginia, United States
OnsiteFull Time
1+ YOEMinimum 1+ years of general security experience; Top Secret clearance; strong organizational, communication, and MS Office skills.
Microsoft Office
1w
Save
Mark Applied
Hide
Secure Facility Attendant / Computer Security Administrator
Adelphi, Maryland, United States
$66k-$100k/yr OnsiteFull Time
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
2w
Save
Mark Applied
Hide
HRIS Administrator/HR Administrator
San Antonio or Alexandria
HybridFull Time
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
Save
Mark Applied
Hide
System Administrator
Arlington or Blacksburg
$80k-$100k/yr OnsiteFull Time
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)
1mo
Save
Mark Applied
Hide
Systems Administrator
Washington, District of Columbia, United States
$90k-$120k/yr OnsiteFull Time
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
1w
Save
Mark Applied
Hide
Systems Administrator
Boston or Charlotte or Atlanta or Asheville or New York City or Westwood or McLean
$110k-$145k/yr HybridFull Time
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
Save
Mark Applied
Hide
Systems Administrator
Arlington, Virginia, United States
$70k-$110k/yr OnsiteFull Time
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)
Explore Jobs