• Senior Offensive Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    Senior Offensive Security Engineer Job Description **Offensive Security Engineer** **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of ... an invaluable edge in real estate. Evolve our offensive security capabilities to test our internal and external facing...activities such as red teaming, penetration testing, and vulnerability research + 6 years of total experience in a… more
    CoStar Realty Information, Inc. (08/26/25)
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  • Security Incident Analyst (SiA) - TS/SCI…

    General Dynamics Information Technology (Norfolk, VA)
    …Family:** Cyber and IT Risk Management **Skills:** Case Management,Cybersecurity,Incident Analysis, Security Incident Response **Experience:** 8 + years of related ... experience **US Citizenship Required:** Yes **Job Description:** Own your career as a Security Incident Analyst (SIA) at GDIT. Here, you'll have the opportunity to… more
    General Dynamics Information Technology (11/18/25)
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  • Senior Security Consultant, Red Team,…

    Google (VA)
    Senior Security Consultant, Red Team, Mandiant, Google Cloud _corporate_fare_ Google _place_ Reston, VA, USA; Alabama, USA; +7 more; +6 more _laptop_windows_ Remote ... tool development. + Experience with tools used for wireless, web application, and network security testing. + Ability to travel up to 30% of the time. **Preferred… more
    Google (11/21/25)
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  • Cyber Security Analyst

    CACI International (Chantilly, VA)
    Cyber Security Analyst Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of ... * * **The Opportunity** : CACI is seeking a Security Analyst to conduct technical analysis to drive operations,...training, such as our Capture the Flag Events, Internal Research and Development opportunities as well as prepaid courses… more
    CACI International (09/18/25)
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  • Red Team Operator

    Amentum (Norfolk, VA)
    …virtualized, or cloud-based systems. **Candidate must be eligible to obtain a security clearance.** **Roles and Responsibilities** + Review and become proficient in ... and documentation for DCAT authorization established in DoDI 8585.01. + Research , review, prioritize, and submit operational requirements for acquisition of… more
    Amentum (11/12/25)
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  • Penetration Tester, Senior

    CACI International (Chantilly, VA)
    …project team with specific experience planning and executing penetration tests in a Windows environment. You will be called upon to solve technical puzzles every day ... programs with peers who are dedicated to advancing national security . Participate in fun team outings and team building...training, such as our Capture the Flag Events, Internal Research and Development opportunities as well as prepaid courses… more
    CACI International (10/18/25)
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  • Systems Administrator / Top Secret / Onsite:

    Lockheed Martin (Arlington, VA)
    …of aerospace innovation, leveraging cutting edge computing environments to accelerate research and development\. As a hub for breakthrough ideas, ACL relies ... * Identify and apply industry best practices for systems administration across Windows , Linux, and VMware vSphere/ESXi environments\. * Develop and implement … more
    Lockheed Martin (10/22/25)
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  • Systems Engineer 4

    M. C. Dean (Vienna, VA)
    …With over 7,000 employees, our capabilities span electrical, electronic security , telecommunications, life safety, automation and controls, audiovisual, and IT ... cybersecurity industries. We are seeking a **System Engineer 4** to join our ** Security and Electronic Systems (SES)** business Unit. As part of **(SES)** Strategic… more
    M. C. Dean (10/14/25)
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  • Senior Systems Administrator, Level 3 - Clearance…

    Lockheed Martin (Dahlgren, VA)
    …The System Administrator \(SA\) is responsible for the day\-to\-day operations of Windows and Linux systems and hardware\. Duties may include setting up ... *Provides all operating system and anti\-virus updates, participate in technical research and development to support new work requirements, and hardware end… more
    Lockheed Martin (11/19/25)
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  • Systems Administrator

    Chenega Corporation (Arlington, VA)
    …to our customers in support of their missions to sustain the national security and economic interests of our nation. SecuriGence is seeking a talented **Systems ... expertise in high-level problem-solving. + Install, configure, and manage Windows Server operating systems, adhering to organizational requirements and industry… more
    Chenega Corporation (11/20/25)
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