775 security administrator jobs at 350 companies in Frederick, MD
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Security Administrator
Chantilly or Falls Church
$65k-$75k/yrOnsiteFull Time
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
1+ YOEHigh school diploma or GED; 1 year min in security-related discipline; 3-5 years administrative security experience; 7+ years personnel security for senior; active Top Secret clearance with polygraph eligibility; strong communication and computer skills.
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.
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
Chief Information Security Office - Security Administrator I
Arlington, Virginia, United States
HybridFull Time
CNA: Provides research and analysis for national security and public policy.
2+ YOEBachelor's degree or equivalent, 2+ years administrative/customer service experience, Top Secret clearance eligibility, strong organizational and record-keeping skills, Microsoft Office proficiency, and excellent communication.
ShorePoint: Provides cybersecurity and risk management services for federal agencies.
4+ YOEBachelor's degree (or equivalent experience),4+ years cybersecurity experience,Imperva on-prem and Imperva Azure experience,knowledge of security frameworks and RMF,ability to obtain security clearance,U.S. citizenship required.
Quzara: Managed cybersecurity operations and federal compliance advisory services.
6+ YOEBachelor's in cybersecurity/IT; 6–9+ years in Security Operations; design and implement SOC processes; hands-on with SIEM/SOAR/EDR; strong communication; U.S. citizenship.
American Systems: Providing strategic engineering and IT solutions for government programs.
10+ YOEExperienced security administrator with Special Access/SCI support, personnel security administration, team coordination, record management, and briefing/report writing skills.
3+ YOEBachelor’s in IT or related field; 3+ years in systems administration; Windows/Linux; network and security; ability to obtain US security clearance.
Windows, Linux, Enterprise Applications, Network Monitoring Tools, Firewalls, IT Security Tools, Asset Management Systems, IT Service Management Tools
5+ YOE5+ years providing technical support to software applications; Windows Server/Domain, WSUS, Hyper-V, Active Directory, Group Policy, DNS, TCP/IP; experience with Gallagher/Genetec/Lenel/Software House and Milestone; strong communication and documentation skills; ability to obtain government clearance.
Windows Server (2022/2025), Windows 11, WSUS, Hyper-V, Active Directory, Group Policy, DNS, TCP/IP, Gallagher, Genetec, Lenel, Software House, Milestone
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
ISN Corporation: Provides investigative and professional services to federal agencies.
8+ YOESenior IT systems and network administrator with 8-10 years of experience; strong Windows Server, Microsoft 365, networking, VoIP, and storage expertise; security best practices and patch management; able to work independently.
Windows Server, Active Directory, DNS, DHCP, Group Policy, Microsoft 365, Azure AD / Entra ID, Teams, SharePoint, VoIP, NAS/SAN, VMware, Hyper-V, PowerShell, Security best practices, Patch management, NIST 800-171, CMMC
People, Technology & Processes: Provides IT services and mission support for government agencies.
1+ YOEAssociate’s degree and 1 year as security specialist OR high school diploma/GED and 3 years security experience; knowledge of DISS, DEERS, and RAPIDS.