• Firewall Engineer

    SAIC (Springfield, VA)
    **Description** This is a senior firewall position within the Vanguard 2025 Contract, providing general engineering support to multiple firewall and perimeter ... console, Fortinet FortiGate NGFW, A10 Encrypted Traffic Inspection/Application Delivery, and Cisco ESA & ASA. + Experience developing and configuring SSL… more
    SAIC (11/11/25)
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  • Principal Systems Engineer - active TS/SCI…

    V2X (Springfield, VA)
    …the ability to obtain and maintain a Counterintelligence (CI) Polygraph. The Senior -level Principal Systems Engineer shall lead a diverse, multi- disciplinary ... respect, responsibility, and professionalism. We are hiring a Principal Systems Engineer - active TS/SCI clearance to support our government customer based… more
    V2X (11/25/25)
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  • Sr Security Engineer

    Arena Technical Resources, LLC (Falls Church, VA)
    …a Public Trust clearance. Job Description: We are seeking an experienced Senior Security Engineer well-versed in designing, deploying, and maintaining ... Sr Security Engineer Location: Falls Church, VA, US Job ID:...content filters, and SSL-Visibility systems. Certification: - Advancedsecurity certificationfromPalo Alto, Cisco , orJuniper. Palo Alto is preferred Specific Skills: -… more
    Arena Technical Resources, LLC (10/06/25)
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  • NOC Network Engineer

    Virtual Service Operations (Lorton, VA)
    …professional with a passion for solving complex network issues? Join our team as a Senior NOC Network Engineer and play a pivotal role in ensuring the ... Opportunity: VSO is seeking a highly skilled and experienced Senior NOC Network Engineer (Tier 3) to...OSPF, MPLS, VLANs, and VPNs. + Hands-on experience with Cisco , Juniper, and/or other enterprise network equipment. + Proficiency… more
    Virtual Service Operations (10/31/25)
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  • Telecommunications Field Engineer

    CACI International (Herndon, VA)
    …* * * **The Opportunity:** CACI has an immediate opportunity for a senior level **Telecommunications Field Engineer ** with a TS/SCI Poly clearance. ... Telecommunications Field Engineer Job Category: Information Technology Time Type: Full...on Hyper-V. + Knowledge of networking and working with CISCO equipment + Knowledge of TCIP/IP routing and use… more
    CACI International (11/19/25)
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  • Lead Information Security Engineer

    Lumen (Herndon, VA)
    …the world and shape the future. **The Role** This position is a senior role implementing Managed Security Services (MSS) in a Federal Security Operations Center ... and issue posture and assessment reports This Lead Information Security Engineer position operates in a supportive role implementing security, technology, and… more
    Lumen (11/14/25)
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  • OCONUS Field Engineer - TS/SCI Polygraph…

    Leidos (Chantilly, VA)
    **Description** We are seeking mid to senior field engineers to join our international team in an exciting OCONUS location. The team is made-up of highly technical ... and motivated individuals. The engineer for this role will troubleshoot complex problems, as...(one or more preferred):** + Experience deploying and maintaining Cisco routers, switches, and firewalls + Asterisk based PBX… more
    Leidos (11/07/25)
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  • Network Engineer III

    CACI International (Springfield, VA)
    …encompasses the design, implementation, and maintenance of complex, global enterprise networks. The Senior Network Engineer will act as a key technical leader, ... Network Engineer III Job Category: Information Technology Time Type:...monitoring tools. * Proficiency with leading network vendors (Juniper, Cisco ). * Exceptional problem-solving and analytical skills. * Strong… more
    CACI International (10/07/25)
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  • Cleared Network Engineer

    Virtual Service Operations (Lorton, VA)
    …for Network Engineers to join our dynamic team in Lorton, Virginia. As a Network Engineer , you will be responsible for providing senior level support for our ... Cleared Network Engineer * Lorton, VA (http://maps.google.com/maps?q=Lorton+VA+USA) Description Are you looking...routers, switches, load balancers, and network operating systems (eg, Cisco , Juniper), as well as Azure networking components like… more
    Virtual Service Operations (09/29/25)
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  • Network Engineer Tier 3

    CACI International (Springfield, VA)
    …are needed on an ongoing basis. **Opportunity:** Team CACI is seeking a Senior Network Engineer to support an Intelligence Community customer's diverse network ... Network Engineer Tier 3 Job Category: Information Technology Time...performance, consult on improvements, and make technology recommendations to senior management. Experience with large-scale enterprise networks in a… more
    CACI International (10/25/25)
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