security administrator Jobs in washington

281 - 300 of 1,646 Jobs

Subject Matter Expert - Cloud and Infrastructure Architect ServicesJob Title - Subject Matter Expert - Cloud and Infrastructure Architect Services

Delmock Technologies, IncCompany Name - Delmock Technologies, Inc

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Laurel, Maryland, USA

Full-time

About Our Company: Delmock Technologies, Inc. (DTI), is a leading HUBZone business in Baltimore, known for delivering sophisticated IT (Information Technology) and Health solutions with a commitment to ethics, expertise , and superior service. Actively engaged in the local community, DTI creates opportunities for talented residents while maintaining a stellar reputation as an award-winning contractor, earning accolades like the Government Choice Award for IRS (Internal Revenue Service) Systems M

System Vulnerability Analyst 2Job Title - System Vulnerability Analyst 2

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

Are you VIGILANT about your career? RealmOne definitely is! RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch security professionals. Join us on this jou

Information System Security EngineerJob Title - Information System Security Engineer

Cymertek CorporationCompany Name - Cymertek Corporation

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Tysons, Virginia, USA

Full-time

Information System Security Engineer LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a skilled and proactive Information System Security Engineer to join our cybersecurity team. In this role, you will design, implement, and maintain security solutions to protect critical information systems and ensure compliance with established security standards. You will collaborate with cross-functional teams to asse

Windows System AdministratorJob Title - Windows System Administrator

General DynamicsCompany Name - General Dynamics

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Fort Belvoir, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT) Systems, System Administration, System Security, Technical Support Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as a Systems Administrator Se

Windows System AdministratorJob Title - Windows System Administrator

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Fort Belvoir, Virginia, USA

Full-time

System Administrator (SA3) (Government)Job Title - System Administrator (SA3) (Government)

AT&T Inc.Company Name - AT&T Inc.

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Columbia, Maryland, USA

Full-time

Job Description: AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers' mission. MAROONMIDNIGHTS (MMN) Provide IT support and solutions developed for National Cryptologic University classified training

Network System AdministratorJob Title - Network System Administrator

Cymertek CorporationCompany Name - Cymertek Corporation

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Annapolis, Maryland, USA

Full-time

Network System Administrator LOCATION Annapolis Junction, MD 20701 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a dedicated and detail-oriented Network Systems Administrator to join our team and oversee the design, implementation, and maintenance of our network and system infrastructure. In this role, you will ensure the reliability, security, and efficiency of both network operations and system performance. Collaborating

Senior Information Systems Security OfficerJob Title - Senior Information Systems Security Officer

Realm OneCompany Name - Realm One

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Annapolis, Maryland, USA

Full-time

We're searching for talented individuals who provide intelligence, engineering, and mission management expertise for the Government.This program will maximize the effectiveness and efficiency of our country's most important missions both at home and abroad. If you are ready to support a high-performing team that truly makes a difference, thencome join us! Job Description: The Information System Security Officer will provide vital support for the implementation and maintenance of our information

Data Center Security OfficerJob Title - Data Center Security Officer

SecuritasCompany Name - Securitas

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Woodbridge, Virginia, USA

Full-time

Data Center Security Officer Your Next Career Opportunity Starts Here! What We Offer for Security Officers: Pay: $19.00 per hourShift Availability: 2nd Shift: 2:00 PM - 10:00 PM3rd Shift: 10:00 PM - 6:00 AM (Required to work at least one weekend shift, Saturday or Sunday) Apply now and take the first step toward a rewarding career with Securitas USA! Why Join Securitas? Weekly Pay: Get paid every week!Career Growth Opportunities: Advance your career with leadership roles, specialized training

Data Scientist - TS/SCI with PolygraphJob Title - Data Scientist - TS/SCI with Polygraph

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Reston, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Data Science Job Qualifications: Skills: Atlassian Confluence, Atlassian JIRA, DevSecOps, Scripting Languages, Software Development Certifications: None Experience: 20 + years of related experience ship Required: Yes Job Description: A career as a Data Scientist at GDIT means being

Information Systems Security Officer Level 2Job Title - Information Systems Security Officer Level 2

General DynamicsCompany Name - General Dynamics

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Annapolis, Maryland, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Information Security Job Qualifications: Skills: Computer Security, Information System Security, Security Information, Security Requirements, System Security Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: Provides support for a

Systems Administrator - Network Monitoring - Active Top Secret clearance requiredJob Title - Systems Administrator - Network Monitoring - Active Top Secret clearance required

General DynamicsCompany Name - General Dynamics

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Washington, District of Columbia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Computer Systems, Enterprise Monitoring, Monitoring Solutions Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Systems Administrator -Network Monitoring Seize your opportunity to make a personal impact as a

Systems Administrator - Network Monitoring - Active Top Secret clearance requiredJob Title - Systems Administrator - Network Monitoring - Active Top Secret clearance required

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Washington, District of Columbia, USA

Full-time

Systems Administrator - Network Monitoring - Active Top Secret clearance requiredJob Title - Systems Administrator - Network Monitoring - Active Top Secret clearance required

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Washington, District of Columbia, USA

Full-time

Senior Network Security EngineerJob Title - Senior Network Security Engineer

Costar GroupCompany Name - Costar Group

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Arlington, Virginia, USA

Full-time

Senior Network Security Engineer Job Description Overview CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world's real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. We have been living and breathing the world of real estate infor

Data Scientist - TS/SCI with PolygraphJob Title - Data Scientist - TS/SCI with Polygraph

General DynamicsCompany Name - General Dynamics

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Reston, Virginia, USA

Full-time

Information Systems Security Engineer IIJob Title - Information Systems Security Engineer II

LeidosCompany Name - Leidos

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Annapolis, Maryland, USA

Full-time

The Digital Modernization Sector at Leidos currently has an immediate need for an experienced Information Systems Security Engineer (ISSE) II for a strategic High-Performance Computing (HPC) program. The ISSE II will need to be a self-starter with excellent analytical and problem-solving skills, flexibility, good judgment, and the ability to work within a team to mature the HPC capabilities of our customer. Primary Responsibilities: Assists the Government in creating techniques and tools within

Network EngineerJob Title - Network Engineer

LeidosCompany Name - Leidos

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Chantilly, Virginia, USA

Full-time

Description We are seeking a highly skilled Network Engineer to design, configure, and maintain network systems that support critical SAP landscapes. The ideal candidate will play a key role in ensuring optimal network performance and availability for SAP applications, collaborating with cross-functional IT teams to support business operations, security compliance, and disaster recovery initiatives. Primary Responsibilities: Design, configure, and maintain network infrastructure supporting SAP

Senior O365 EngineerJob Title - Senior O365 Engineer

SAICCompany Name - SAIC

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Washington, District of Columbia, USA

Full-time

Job ID: 2506825 Location: WASHINGTON, DC, US Date Posted: 2025-07-28 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: Yes Description SAIC is Seeking a motivated, experienced Senior O365 Engineer with experiences in Microsoft Cloud Technologies to support Pension Benefit Guaranty Corporation (PBGC) in Washington,

Senior Information Systems Security OfficerJob Title - Senior Information Systems Security Officer

BlueHaloCompany Name - BlueHalo

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Annapolis, Maryland, USA

Full-time

At BlueHalo, an AV Company, our Cyber experts operate at the mission's edge. Using advanced cyber techniques, our team of technologists and analysts employ capabilities spanning traditional computing environments to Internet of Things (IoT), including offensive and defensive cyber operations and analysis, signals intelligence (SIGINT) discovery, and data science. Our team is expanding to do the big things that have never been done before - the things the nation and the world are counting on us t