network security analyst public trust Jobs in washington, dc

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Information Systems Security Officer (ISSO) - TS/SCI with PolygraphJob Title - Information Systems Security Officer (ISSO) - TS/SCI with Polygraph

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/SCI 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 Systems, Information System Security Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as an Information System Security Offic

Cloud Security EngineerJob Title - Cloud Security Engineer

Cornerstone DefenseCompany Name - Cornerstone Defense

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Herndon, Virginia, USA

Full-time

Location: Herndon, Virginia Type: Contract Job #3713 Title: Cloud Security Engineer Location: Herndon, VA *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team i

Information Systems Security EngineerJob Title - Information Systems Security Engineer

SAICCompany Name - SAIC

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Chantilly, Virginia, USA

Full-time

Job ID: 2508038 Location: CHANTILLY, VA, US Date Posted: 2025-07-30 Category: Cyber Subcategory: Cybersecurity Spec Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking an experienced Information Systems Security Engineer (ISSE) for a position located in Chantilly, VA. The successful candidate will leverage overall system knowl

Senior Information Systems Security Officer (ISSO-3)Job Title - Senior Information Systems Security Officer (ISSO-3)

LeidosCompany Name - Leidos

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Maryland, USA

Full-time

Description Leidos has a new and exciting opportunity for a Senior Information Systems Security Officer (ISSO) in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA) . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays,

Information System Security Officer (ISSO) - Full-TimeJob Title - Information System Security Officer (ISSO) - Full-Time

Chabez Tech LLCCompany Name - Chabez Tech LLC

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Maryland City, Maryland, USA

Full-time

Role: Information System Security Officer (ISSO) Location: Annapolis Junction, MD Job Type: Full-Time We are looking for an Information System Security Officer (ISSO) to work at our Annapolis Junction, MD, location. This is an exciting opportunity to use your experience to support an important, fast-paced, mission-critical program. The selected candidate will act as an ISSO for a large software development program that includes software maintenance and development, IT support (Network/Workstatio

Information System Security Officer (ISSO) MID-LEVEL (Government)Job Title - Information System Security Officer (ISSO) MID-LEVEL (Government)

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

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Chantilly, Virginia, USA

Full-time

Job Description: This position requires office presence of a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered. 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

Information System Security OfficerJob Title - Information System Security Officer

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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McLean, Virginia, USA

Full-time

Job Number: R0223192 Information System Security Officer The Opportunity: Are you looking for an opportunity to share your experience in information system security to safeguard our nation? As an information system security engineer, you can identify the system security needed to assess vulnerabilities and recommend the best solution and security strategy. We need your experience to lead the implementation of a cross-domain system that will secure the enterprise. In this role, you'll use your kn

Sr. Information Systems Security OfficerJob Title - Sr. Information Systems Security Officer

Data Intelligence LLC.Company Name - Data Intelligence LLC.

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Vienna, Virginia, USA

Full-time

Data Intelligence, LLC is seeking a skilled Information Systems Security Officer (ISSO) to support a top-tier federal client engaged in national security and counterterrorism operations. This full-time position, based in Vienna, VA, plays a critical role in securing complex IT systems in a high-visibility, mission-driven environment. The selected candidate will work closely with government and contractor stakeholders to ensure compliance, manage risk, and defend against evolving cyber threats. K

Senior Network Security EngineerJob Title - Senior Network Security Engineer

LeidosCompany Name - Leidos

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Maryland, USA

Full-time

Description Unleash Your Potential! At Leidos, we deliver innovative solutions by leveraging our diverse and talented workforce who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. If this sounds like an environment where you can thrive, keep reading! Do

Senior Information Systems Security Officer (ISSO)Job Title - Senior Information Systems Security Officer (ISSO)

LeidosCompany Name - Leidos

•

Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Senior Information Systems Security Officer (ISSO) in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company

Information Systems Security Officer (ISSO)Job Title - Information Systems Security Officer (ISSO)

LeidosCompany Name - Leidos

•

Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Information Systems Security Officer (ISSO) in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match

Information Systems Security EngineerJob Title - Information Systems Security Engineer

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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Fort Belvoir, Virginia, USA

Full-time

Job Number: R0221437 Information Systems Security Engineer The Opportunity: Are you looking for an opportunity to share your experience in system security engineering to help our country and assist our clients with critical missions? As a systems security and network security engineer, you can identify the Information System Security Engineering needed to assess vulnerabilities and recommend the best solution and security strategy. We need your experience to lead the development and implementat

Cloud Solution Architect - Data SecurityJob Title - Cloud Solution Architect - Data Security

Microsoft CorporationCompany Name - Microsoft Corporation

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Washington, District of Columbia, USA

Full-time

Join Microsoft's US Public Sector Industries DIB Team-where mission meets innovation. The Defense Industrial Base (DIB) Operating Unit (OU) is a newly formed team with a bold mission: to consolidate, simplify, and accelerate Microsoft's presence across the DIB landscape. This expansive network includes over 100,000 organizations specializing in manufacturing, aviation, cybersecurity, and more-all united in their support of all Federal Agencies, including the U.S. Department of Defense and other

Endpoint Security as a Service (ESS) Engineer/AdministratorJob Title - Endpoint Security as a Service (ESS) Engineer/Administrator

LeidosCompany Name - Leidos

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Washington, District of Columbia, USA

Full-time

Description Leidos is seeking a skilled and driven Endpoint Security as a Service (ESS) Engineer and Administrator to join our team at the Washington Navy Yard - where innovation meets mission. What You'll Do As an ESS Engineer and Administrator, you won't just maintain systems - you'll elevate them. You'll be part of a collaborative team that installs, configures, and fine-tunes advanced security solutions to ensure critical network infrastructure runs at peak performance. You'll also evaluat

Information Systems Security Manager - TS/SCI with PolygraphJob Title - Information Systems Security Manager - TS/SCI with Polygraph

General DynamicsCompany Name - General Dynamics

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Bethesda, 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: Cloud:Amazon Web Services (AWS), Plan of Action and Milestones (POA&M), RMF, Xacta (Platform) Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Seize your opportunity to make a person

Tenable Security EngineerJob Title - Tenable Security Engineer

Akima, LLCCompany Name - Akima, LLC

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Alexandria, Virginia, USA

Full-time

Tuvli LLC is seeking a highly motivated, self-directed and experienced individual to fill the role of a Tenable Security Engineer for our existing government client in the Alexandria/Kingstown, VA area. Responsibilities Support day-to-day Administrative and Operational activities for Security services.Experience with maintaining, optimizing, and troubleshooting the Tenable solution currently deployed in a Windows / UNIX environment, including Tenable.sc, NNM, LCE, Nessus Manager, Agents, and Sc

Senior Security Engineer - Cyber Threat Mitigation LeadJob Title - Senior Security Engineer - Cyber Threat Mitigation Lead

Electronic Consulting Services, Inc (ECS Federal)Company Name - Electronic Consulting Services, Inc (ECS Federal)

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Washington, District of Columbia, USA

Full-time

Job Description ECS is seeking a Senior Security Engineer - Cyber Threat Mitigation Lead to work in our Washington, DC office. Please Note: This position is contingent upon additional funding. ECS Federal is a leading information security and information technology company in Washington, DC. We are looking to hire a Senior Security Engineer - Cyber Threat Mitigation Lead to lead a cross functional team (Cyber Threat Intelligence, Hunt, and Analytics) on a long-term contract in Washington DC.

Cloud Platform Security EngineerJob Title - Cloud Platform Security Engineer

Costar GroupCompany Name - Costar Group

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Arlington, Virginia, USA

Full-time

Cloud Platform 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 inform

Sr. Security AnalystJob Title - Sr. Security Analyst

Electronic Consulting Services, Inc (ECS Federal)Company Name - Electronic Consulting Services, Inc (ECS Federal)

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Fairfax, Virginia, USA

Full-time

Job Description ECS is seeking a Sr. Security Analyst to work in our Fairfax, VA office. Please Note: This position is contingent upon contract award. As a leading managed cybersecurity services provider, ECS delivers a highly tailored and customized offering to each customer. The Professional Services Team is responsible for working with our customers to understand their needs and delivering a complete solution. We will leverage your unique skills to help solve customers' challenges, such a

Senior Information Systems Security Officer (ISSO-3)Job Title - Senior Information Systems Security Officer (ISSO-3)

LeidosCompany Name - Leidos

•

Annapolis, Maryland, USA

Full-time