• Systems Engineer - Senior

    Parsons Corporation (Centreville, VA)
    …possible. **Job Description:** Our Special Programs and Systems team is hiring a Senior Systems Engineer with a passion for mission excellence in our High ... 75 years of experience, Parsons is uniquely qualified to deliver cyber /converged security , technology-based intellectual property, and other innovative services… more
    Parsons Corporation (12/06/25)
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  • Senior Specialist, Systems Engineer…

    L3Harris (Springfield, VA)
    …space, air, land, sea and cyber domains in the interest of national security . Job Title: Senior Specialist, Systems Engineer - Strategic Planner (TS/SCI ... Description: L3Harris Technologies currently has an opening for a Senior Specialist, Systems Engineer - Strategic Planner....of our positions require the ability to obtain a security clearance. Security clearances may only be… more
    L3Harris (10/16/25)
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  • Senior Cybersecurity Risk & Compliance…

    Guidehouse (Arlington, VA)
    …writing. + One or more of the following certifications: Certified Information Systems Security Professional (CISSP), Certified Information Security Manager ... Required** **:** None **Clearance Required** **:** Active Secret The Senior Cybersecurity Risk & Compliance Consultant is a ...execution of cybersecurity strategies aligned with ISCM, IT and Cyber audit, or Data Security teams. +… more
    Guidehouse (01/04/26)
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  • Senior CrowdStrike Falcon Endpoint…

    AIG (Reston, VA)
    …organizational security goals + Drive the day-to-day administration of security systems , performing advanced threat hunting, and optimizing configurations to ... help customers to manage risk. Join us as a Senior CrowdStrike Falcon Endpoint Security Engineer to...need to succeed + Bachelor's degree in computer science, cyber security , other technical disciplines, or equivalent… more
    AIG (10/24/25)
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  • Senior Computer Network Defense (CND)…

    V2X (Springfield, VA)
    …Position Qualifications: + 7 or more years experience implementing and maintaining Cyber Security technologies on a multi-platform (Windows, Red Hat, etc.) ... Security +; or + GIAC Foundational Cybersecurity Technologies (GFACT); or + Systems Security Certified Practioner (SSCP) Desired Qualifications: + 7 or more… more
    V2X (12/12/25)
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  • Senior Sales Engineer - SLED, Mid Market…

    Proofpoint (Alexandria, VA)
    …on technical experience, either as a Sales/ Systems Engineer, Technical Account Manager, Security Engineer or senior level product support, preferably in the ... in our sales process every single day. As a Senior Sales Engineer working with accounts in the SLED...Deliver compelling product demonstrations that address today's most pressing cyber threats + Work closely with customer/prospect security more
    Proofpoint (12/25/25)
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  • Senior Specialist, Systems Network…

    L3Harris (Herndon, VA)
    …space, air, land, sea and cyber domains in the interest of national security . Job Title: Sr. Specialist, Systems Network Engineer Job Code: 31086 Job ... advanced defense and commercial technologies across space, air, land, sea and cyber domains. L3Harris has approximately $18 billion in annual revenue and 47,000… more
    L3Harris (11/20/25)
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  • Senior Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    Senior Security Engineer Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate ... section grows, so will the tools and the ** Senior Security Engineer** will be the person...expert on Mitre Att&ck, tools, techniques, and practices of cyber attackers + Ability to script responses to observed… more
    CoStar Realty Information, Inc. (10/24/25)
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  • Senior Data Security Consultant

    Guidehouse (Arlington, VA)
    …following certifications: ISC2 Zero Trust Strategy Certificate, Certified Information Systems Security Professional (CISSP), Certified Authorization Professional ... Consulting **Travel Required** **:** None **Clearance Required** **:** Active Secret The Senior Data Security Lead supports the development of the data… more
    Guidehouse (01/04/26)
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  • Cybersecurity Systems Analyst…

    Amentum (Arlington, VA)
    …in the DISA Security Technical Implementation Guides (STIG). The Cybersecurity Systems analyst should be knowledgeable of cyber network defense tools such ... risks, risk mitigation courses of action, and operational. Additionally, the Cybersecurity Systems Analyst should be able to perform security evaluations and… more
    Amentum (12/28/25)
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