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Security Administrator Jobs in Reston, VA

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Security Administrator Nightwing Intelligence Solutions

Sterling, Virginia

$55,000–$106,000 / year

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization.

24 days ago

Security/Systems Administrator Nightwing Intelligence Solutions

Sterling, Virginia

$122,000–$253,000 / year

Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges.

30+ days ago

Security Clearance Processing Administrator, US ADC Security Amazon.com Inc

Herndon, VA

In this role you own personnel clearance processing end to end: submitting and tracking crossover packets and SCI access requests, verifying eligibility, citizenship, and investigation currency, and coordinating adjudications and access determinations with our sponsoring security office. You coordinate with the sponsoring security office on adjudications and pending access determinations, chase down the one missing document holding up a start date, and update the personnel-security database so records stay audit-ready.

5 days ago

Senior System Security Administrator Human Capital Resources and Concepts

Washington D.C, DC

Human Capital Resources and Concepts Inc. (HCRC) is a consulting firm that specializes in resource management capabilities that are utilized in all federal organizations. The ideal candidate is a detail-oriented, resilient professional with a strong background in InfoSec/IT Security, excellent communication skills, and a proven ability to manage competing priorities in a dynamic environment.

30+ days ago

Mainframe Security Administrator Peraton Inc

Remote

$66,000–$106,000 / year

Provide account-based security reporting for: Account and access control administration, security reports, recertification reviews, and security violation monitoring for mainframe role-based access control. Use these tools and knowledge: RACF, ACF2, Vanguard, DISA, FISMA, SNOW, SharePoint, Excel, DB2, IDM Security Admin, JCL, DMV/Complete, TSO along with general mainframe tools.

13 days ago

Cyber Security Administrator Beyond SOF

District of Columbia

Stay updated on the latest cybersecurity threats and. Monitor network traffic for suspicious activity and respond.

30+ days ago

Xcelerate Solutions Careers - Personnel Security Administrator - Mid W/ Ts/Sci With FSP Xcelerate Solutions

Mclean, VA

Minimum Requirements: Education/Experience: Bachelor's Degree + 3 years of experience OR High School Diploma/GED + 5 years of relevant experience. Mentorship: Coach and mentor Developmental level personnel; assist in developing materials for informal office training sessions.

28 days ago

Personnel Security Administrator - Mid w/ TS/SCI with FSP Xcelerate Solutions LLC

McLean, VA

27 days ago

Personnel Security Administrator – Mid w/ TS/SCI with FSP VMD Corp

McLean, VA

Minimum Requirements: Education/Experience: Bachelor’s Degree + 3 years of experience OR High School Diploma/GED + 5 years of relevant experience. Mentorship: Coach and mentor Developmental level personnel; assist in developing materials for informal office training sessions.

16 days ago

Security Administrator Amentum Services Inc

Chantilly, VA

$70,000–$90,000 / year

Minimum Requirements Knowledge Skills and AbilitiesRequired Skills & ExperienceDemonstrated high level of personal integrity and ability to discreetly handle sensitive personal and classified case informationAbility to operate various corporate and customer specific automated systems for case tracking and status reportingUnderstanding of the federal rules and regulations that encompasses the clearance processKnowledge and ability to use computer operating systemstools such as Microsoft Office SuiteAbility to manage and prioritize multiple task assignments to meet deadlinesDemonstrated ability to provide on-the-job training to new team members and colleaguesAbility to provide a diverse range of administrative support functions such as maintaining records updating records and data entry redacting information and protecting personal identifiable informationIdentify complex problems and reviewing related information to develop and evaluate options and implement solutions. Work Schedule 5 days 8 hrsday hours must fall within 6am-6pm M-FEssential ResponsibilitiesSecurity administrators will be assigned to a primary task team to include not limited to intakedistribution of clearance paperwork data entry into customer system of record casetask initiation paperwork review for completion and content clearance repository or other database checks clearance verification tasks liaisonreciprocity tasks document review and redaction records management and other security administration tasks as assigned.

2 days ago

Personnel Security Administrator II Chenega Corporation

Chantilly, VA

Assist in the development, coordination, and delivery of security education and awareness programs, including initial briefings, annual refresher training, and specialized security briefings/debriefings; maintain accurate training records and completion tracking. . Support the Industrial Security Manager, Facility Security Officer (FSO), and Personnel Security Specialists by reviewing security documentation and investigative paperwork for accuracy, completeness, and compliance with applicable requirements. .

13 days ago

Cloud Security Administrator - RHEL Leidos Holdings Inc

Adelphi, MD

$107,900–$195,050 / year

Working knowledge of AWS security services, including IAM, CloudTrail, CloudWatch, Security Hub, GuardDuty, Systems Manager, KMS, and VPC security controls. In this role, you'll help secure and sustain AWS cloud environments by managing security controls, identifying vulnerabilities, coordinating remediation, and supporting continuous compliance monitoring.

5 days ago

Cloud Security Administrator Leidos Holdings Inc

Adelphi, MD

$107,900–$195,050 / year

13 days ago

Vulnerability Management and Endpoint Security Administrator JCS Solutions LLC

Fort Belvoir, VA

$70,000–$100,000 / year

This role serves as a cybersecurity subject matter resource across Vulnerability Management and Endpoint Security teams, helping modernize, secure, and continuously improve enterprise IT services and mission capabilities across CONUS and OCONUS environments. Job Summary CS Solutions LLC is seeking a Vulnerability Management and Endpoint Security Administrator to provide cybersecurity expertise supporting enterprise IT operations on a high-profile Department of War (DoW) contract supporting DTRA.

30+ days ago

Vulnerability Management and Endpoint Security Administrator Career Listings

Ft Belvoir, VA

Full time

The selected candidate will serve as a cybersecurity subject matter resource across the Vulnerability Management and Endpoint Security teams and will exercise independent judgment in analyzing cybersecurity risks, determining remediation priorities, evaluating technical solutions, and recommending courses of action affecting enterprise endpoints and infrastructure. The I3TS program provides enterprise-wide IT support to enable the Defense Threat Reduction Agency’s Information Management & Technology Directorate to consolidate, modernize, and continuously improve delivery of IT services and mission capabilities to internal and external mission partners operating in CONUS and OCONUS locations.

15 days ago

Vulnerability Management and Endpoint Security Administrator Cb

Ft Belvoir, Virginia

$120,000–$126,000 / year

13 days ago

SECURITY PLATFORM ADMINISTRATOR Zermount, Inc

Arlington, VA

Full time
Quick Apply

The role performs patching, hardening, monitoring, backup and recovery, troubleshooting, maintenance, configuration management, and administrative automation while keeping platform documentation and lifecycle information current. Implement, configure, operate, and maintain operating systems and related software supporting security tools, sensors, platforms, enclaves, applications, and data services.

14 days ago

Splunk Enterprise and Enterprise Security Administrator Leidos

Suitland, Maryland

September 9, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

10 days ago

Security Administrator (5707) Smartronix

Arlington, VA

$93,700–$156,200 / year

The ideal candidate should also be comfortable working with a multi-disciplinary team to create, author, and brief repeatable frameworks and analyses focused on providing insights into potential vulnerabilities, stakeholder requirements, and necessary evolutions to a client's portfolio with the goal of identifying, understanding, and mitigating different types of risks. The SMX salary determination process takes into account a number of factors, including but not limited to, geographic location, Federal Government contract labor categories, relevant prior work experience, specific skills, education and certifications.

11 days ago

Security Administrator 5707 SMX

Arlington, VA

$93,700–$156,200 / year

30+ days ago

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Security Administrator Jobs in Reston, VA

Security Administrator Nightwing Intelligence Solutions

Security/Systems Administrator Nightwing Intelligence Solutions

Security Clearance Processing Administrator, US ADC Security Amazon.com Inc

Senior System Security Administrator Human Capital Resources and Concepts

Mainframe Security Administrator Peraton Inc

Cyber Security Administrator Beyond SOF

Xcelerate Solutions Careers - Personnel Security Administrator - Mid W/ Ts/Sci With FSP Xcelerate Solutions

Personnel Security Administrator - Mid w/ TS/SCI with FSP Xcelerate Solutions LLC

Personnel Security Administrator – Mid w/ TS/SCI with FSP VMD Corp

Security Administrator Amentum Services Inc

Personnel Security Administrator II Chenega Corporation

Cloud Security Administrator - RHEL Leidos Holdings Inc

Cloud Security Administrator Leidos Holdings Inc

Vulnerability Management and Endpoint Security Administrator JCS Solutions LLC

Vulnerability Management and Endpoint Security Administrator Career Listings

Vulnerability Management and Endpoint Security Administrator Cb

SECURITY PLATFORM ADMINISTRATOR Zermount, Inc

Splunk Enterprise and Enterprise Security Administrator Leidos

Security Administrator (5707) Smartronix

Security Administrator 5707 SMX

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