• Security Engineer

    Leidos (Lorton, VA)
    **Description** The Digital Modernization Sector at Leidos currently has an opening for a Security Engineer to work in our Lorton, VA office. This is an exciting ... to deliver cybersecurity and information assurance services. **Primary Responsibilities** The Security Engineer - Linux / Tenable Compliance is responsible for… more
    Leidos (12/11/25)
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  • Information System Security Engineer

    General Dynamics Information Technology (Mclean, VA)
    …Seize your opportunity to make a personal impact as an Information System Security Engineer (ISSE). GDIT is your place to make meaningful contributions ... The selected candidate will act as an Information System Security Engineer (ISSE) and should have a...(RMF). + Experience with system scanning tools, antivirus, siems, network monitoring tools, PKI + Experience developing a Body… more
    General Dynamics Information Technology (12/10/25)
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  • Cloud Security Engineer

    Steampunk (Mclean, VA)
    **Overview** As a **Cloud Security Engineer ** , you will work within our growing DevSecOps practice delivering features to support developing, testing, and ... Steampunk participates in the E-Verify program._ Refer a Friend (https://careers-steampunk.icims.com/jobs/7125/cloud- security - engineer /job?mode=apply&apply=yes&in\_iframe=1&hashed=-336029103) **Need help finding the right job?**… more
    Steampunk (11/29/25)
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  • Cyber Network Security

    CACI International (Chantilly, VA)
    Cyber Network Security Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: ... of Travel: None * * * **The Opportunity:** **CACI is seeking a talented Cyber Network Security Engineer to join our team in Chantilly, VA. This role will**… more
    CACI International (12/02/25)
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  • Senior Cyber Security Engineer

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Senior Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role supports a ... networks and data centers. + Familiarity with enterprise security software products such as firewalls, IPS, antivirus tools,... security principles, TCP/IP networking, 802.1x, and core network security concepts. + Must possess an… more
    ManTech (12/13/25)
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  • Staff Information Security Engineer

    Zscaler (Mclean, VA)
    …and agility with a cloud-first strategy. We are looking for a Staff Information Security Engineer who will operate as a vulnerability management engineer ... cybersecurity. Our Engineering team built the world's largest cloud security platform from the ground up, and we keep...within a US SCIF, with no access to external networks or corporate systems, and adhering to one-way diode… more
    Zscaler (10/11/25)
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  • Network Security Engineer III

    TekSynap (Virginia Beach, VA)
    …Deployment and management of firewalls and IDS/IPS technologies. **Overview** We are seeking a Network Security Engineer III to join our team supporting ... professional Network Engineering experience, with proven expertise in: + Network security design, implementation, and control enforcement. + STIG application… more
    TekSynap (10/01/25)
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  • Principal Cyber Security Engineer

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Principal Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role supports the ... systems, general operating system security practices, TCP/IP networking, 802.1x, and network security concepts + IAT Level II certification (GSEC, … more
    ManTech (12/13/25)
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  • Lead Adversarial Security Engineer

    Trellix (Richmond, VA)
    **_Job Title:_** Lead Adversarial Security Engineer **About** **Trellix:** **Trellix, the trusted CISO ally, is redefining the future of cybersecurity and ... More at https://www.trellix.com/ . **_Role Overview:_** Trellix is seeking an Adversarial Security Engineer to lead the evolution of its cybersecurity posture.… more
    Trellix (11/21/25)
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  • Network Security Engineer

    System One (Norfolk, VA)
    Job Title: Network Security Engineer - Firewall Migration Specialist ( US citizen, clearance ) Location: Norfolk, Virginia Type: Direct Hire For immediate ... job location in your email message US Citizenship with active SECRET clearance required Network Security Engineer - Firewall Migration Specialist : - Lead… more
    System One (12/14/25)
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