668 Results for

Security Administrator Jobs in Washington, DC

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Principal Systems Administrator (TS/SCI with Polygraph required) Red Alpha

Annapolis Junction, Maryland

$155,000–$225,000 / year

Our total compensation package was strategically designed with our members in mind with the intention to: reward our members for their hard work and commitment to our customers' missions; allow members to share in Red Alpha's success as we continue to grow and expand our footprint; provide long-term career opportunities through stability and internal mobility; and provide the resources our members need to support themselves and their dependents in the form of a robust benefits package. Our approach in determining final salaries takes into consideration a number of factors such as education, certifications, total years of relevant professional experience, actual level of expertise, and the responsibilities of the role itself.

2 days ago

Enterprise - System Administrator - Linux, Ansible, Windows Erias Ventures

Annapolis Junction, Maryland

Configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance. We are seeking engineers who wish to grow their careers and want to become part of a technically strong and growth-oriented company focused on bringing innovative solutions to the difficult mission problems facing our customers.

30+ days ago

University - Summer 2027 - Systems Administrator Intern Booz Allen Hamilton

Annapolis Junction, Maryland

Onsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.

29 days ago

Senior Systems Administrator-VDI Tetrad Digital Integrity LLC

Fort Meade, MD

Full time

Tetrad Digital Integrity (TDI) is a leading-edge cybersecurity firm with a mission to safeguard and protect our customers from increasing threats and vulnerabilities in this digital age. Final compensation will be based on factors including experience, education, skills, geographic location, internal equity, market data and applicable contract requirements, and may fall outside the posted range.

30+ days ago

Software Integrator & Administrator, Senior Booz Allen Hamilton

Usa, Maryland

Onsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Ability to work with CI/CD concepts and tools, such as Azure DevOps, GitLab, or Jenkins for building and deploying infrastructure, and with PowerShell and Bash, including Infrastructure as Code (IaC) to streamline provisioning, configuration, and deployment processes.

17 days ago

Finance and Contracts Administrator iCatalyst Inc

Mclean, VA

$75,000–$100,000 / year

We specialize in AI-Driven Digital Transformation, Cloud and Infrastructure Modernization, Data Engineering and Advanced Analytics, Enterprise IT Modernization and Mission-Focused Program and Change Management. Bachelor’s degree in Finance, Accounting, Contract Management, Law or a related field with minimum 4 years of experience; NCMA Certification (CPCM, CFCM and/or CCCM) highly preferred.

30+ days ago

Citrix Infrastructure Administrator Tetrad Digital Integrity LLC

Arlington, VA

Full time

TDI is looking for a Citrix Infrastructure Administrator with the ability to configure, administer, and sustain an enterprise Citrix environment supporting geographically distributed users. This role is responsible for day-to-day health, maintenance, troubleshooting, performance, and security integration for Citrix Virtual Apps and Desktops (CVAD) and Citrix ADC (NetScaler).

30+ days ago

Network Administrator Inserso Corporation

Washington, DC

$70,000–$90,000 / year

Must maintain a state of travel readiness required to take prompt action on support requests which may require local and/or overnight travel to Government locations (Local short notice travel to customer sites is common, extended overnight and air travel is typically less than 5% per year). The Network Administrator reports to a Team Lead and provides IT Field Operations (ITFO) support for 24x7 LANs and associated applications, peripherals, connectivity, and end-users in a Service Desk supported Tier II environment.

14 days ago

Devops Engineer And System Administrator, Senior Booz Allen Hamilton Inc.

Mclean, VA

$77,600–$176,000 / year

Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. You'll be responsible for executing deployments, configuration, patching, security, operations and monitoring of production environments, Dev and Test environments, end-user training, and feature preview environments.

30+ days ago

Information Technology Administrator Synergi Llc

Elkridge, MD

Reports ToChief Financial Officer ManagesNone Summary/ObjectiveThe Information Technology Administrator ("IT Admin") manages the IT needs of the company while working with outside contracted service providers. Manages Synergi's IT infrastructure to ensure all aspects are operating efficiently, including software, hardware, licenses, phones and tablets, phone system, and printers.2.

30+ days ago

Senior Linux Systems Administrator (TS/SCI with Poly required) Red Alpha

Annapolis Junction, Maryland

$140,000–$200,000 / year

Our total compensation package was strategically designed with our members in mind with the intention to: reward our members for their hard work and commitment to our customers' missions; allow members to share in Red Alpha's success as we continue to grow and expand our footprint; provide long-term career opportunities through stability and internal mobility; and provide the resources our members need to support themselves and their dependents in the form of a robust benefits package. As a Senior Linux Systems Administrator, you will join an operations support team responsible for dataflow implementation including transitions from legacy to modern systems and monitoring of implemented data flows.

30+ days ago

Contracts Administrator Avantus Federal

Lorton, VA

$78,600–$129,700 / year

If you have the courage to take on a wide variety of complex challenges, then you will experience a unique working environment where innovative teams blend different perspectives, disciplines, and technologies to discover new ways of solving complex problems. Cradle to grave contracts administration including but not limited to preparing and negotiating nondisclosure agreements and teaming agreements; Negotiating, and finalizing Government contract agreements providing post award contract management and administration.

30+ days ago

Systems Administrator - Sr Nalley Consulting

Washington, DC

Principal technologies: Java, Java Persistence API (JPA), Java Web Services (JAX-RS), Java Cryptography Extension (JCE), Hibernate, Spring, JavaScript, Apache Ant, Apache HTTPD, and Apache Tomcat. Platforms: Red Hat Enterprise Linux 7, 8, and 9, with an understanding of FIPS mode, SELinux, firewall daemon (firewalld), file access policy daemon (fapolicyd), and basic system administration.

30+ days ago

Linux Middleware Systems Administrator (Remote - Occasional Office Visits Required) Unison global

Tysons Corner, VA

Remote

Role Overview: Unison is seeking a Linux Middleware Systems Administrator to support Linux servers, middleware platforms, Talend services, SOA integrations, and database-connected applications in hosted SaaS environments. Trusted by over 200,000 federal employees and government contractors, our AI-infused software and deep domain expertise help contract shops, cost engineers, 1102s, program managers, and budgeting professionals cut through friction, keep compliance airtight, and sharpen decisions.

29 days ago

System Administrator Booz Allen Hamilton Inc.

Annapolis Junction, MD

$99,000–$225,000 / year

Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.

27 days ago

Senior Contracts Administrator MAG Aerospace

Fairfax, Virginia

$85,000–$100,000 / year
Full time

Position Summary: A Senior Contracts Administrator, under general direction, independently performs a full range of complex duties with primary emphasis on ensuring that contractual relationships between the company, its government customers, and subcontractors conform to SBA requirements, FAR/DFARS regulations, company objectives, and applicable state and federal laws. Essential Duties and Responsibilities: Administer cradle‑to‑grave management of assigned contracts and subcontracts, including contract modifications; ensuring compliance with prime contract requirements; preparing proposals; and negotiating contract terms with existing or prospective clients.

30 days ago

Junior Systems Administrator Consultant Palladium Global Holdings Inc

Palladium, a GISI company, works to design, develop and deliver positive impact on the lives and livelihoods of people around the globe; broaden access to health, water, power, and infrastructure; build enduring, sustainable, and transformative institutions and market systems to address global challenges; and conserve the natural world. The role ensures users have appropriate access to applications and services, ensures software licensing and procurement activities are effectively managed and completed in accordance with organisational policies, and acts as an escalation point for assigned GCG systems and technologies.

28 days ago

University - Systems Administrator Booz Allen Hamilton

Annapolis Junction, Maryland

$52,900–$108,000 / year

11 days ago

SharePoint Administrator with TS/SCI Macpower Digital Assets Edge Private Limited

Annapolis Junction, MD

$110,000–$140,000 / year
Quick Apply

In addition to system administration tasks, the role includes ticket triage and resolution, user support, and coordinating with various teams to ensure SharePoint services are accessible, compliant, and efficient. The role requires demonstrated experience administering and maintaining SharePoint environments, familiarity with PowerShell scripting for automation and SharePoint configuration, as well as a current DoD 8570.01-M

10 days ago

Senior DB2 Database Administrator Macpower Digital Assets Edge Private Limited

Washington, DC

Remote

$110,544–$126,336 / year
Quick Apply

Job Overview We are seeking a highly experienced Senior DB2 Database Administrator for a contract assignment supporting the Office of the Chief Technology Officer (OCTO) and the District of Columbia Department of Motor Vehicles (DC DMV). Key Responsibilities: Manage, configure, and maintain DB2 databases on mainframe platforms, including installations, upgrades, patches, migrations, and version management.

10 days ago

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Security Administrator Jobs in Washington, DC

Principal Systems Administrator (TS/SCI with Polygraph required) Red Alpha

Enterprise - System Administrator - Linux, Ansible, Windows Erias Ventures

University - Summer 2027 - Systems Administrator Intern Booz Allen Hamilton

Senior Systems Administrator-VDI Tetrad Digital Integrity LLC

Software Integrator & Administrator, Senior Booz Allen Hamilton

Finance and Contracts Administrator iCatalyst Inc

Citrix Infrastructure Administrator Tetrad Digital Integrity LLC

Network Administrator Inserso Corporation

Devops Engineer And System Administrator, Senior Booz Allen Hamilton Inc.

Information Technology Administrator Synergi Llc

Senior Linux Systems Administrator (TS/SCI with Poly required) Red Alpha

Contracts Administrator Avantus Federal

Systems Administrator - Sr Nalley Consulting

Linux Middleware Systems Administrator (Remote - Occasional Office Visits Required) Unison global

System Administrator Booz Allen Hamilton Inc.

Senior Contracts Administrator MAG Aerospace

Junior Systems Administrator Consultant Palladium Global Holdings Inc

University - Systems Administrator Booz Allen Hamilton

SharePoint Administrator with TS/SCI Macpower Digital Assets Edge Private Limited

Senior DB2 Database Administrator Macpower Digital Assets Edge Private Limited

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