• VTC Administrator

    TekSynap (Richmond, VA)
    …+ Create, update, and manage trouble tickets in the DLA ITOC Service Now Remedy system , with oversight from the lead. + Assist the lead in maintaining and updating ... Configuration Management (CM) process, tracking changes to the DLA Enterprise VTC Network . + Support the lead in performing proactive maintenance and Tech Refresh… more
    TekSynap (11/12/25)
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  • IT Infrastructure and Engineering Support…

    CACI International (Sterling, VA)
    …operating systems and applications, to include connectivity to various network identity providers, eg Active Directory, NIS, LDAP, etc.. + Responsible for ... * **The Opportunity:** CACI has an immediate opening for an Infrastructure/ Systems Administrator, supporting a development and test environment, utilizing various… more
    CACI International (11/29/25)
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  • OCONUS Field Engineer - TS/SCI Polygraph Required

    Leidos (Chantilly, VA)
    …+ Systems Engineering/Administration + Diagnosing and resolving software, hardware, and network problems + Linux Operating System (using command line) + ... ideal candidate will have prior experience as either a systems engineer or systems administrator. Prior OCONUS...Experience with system / network monitoring tools, ie, Cacti, Nagios, Solarwinds - using… more
    Leidos (11/07/25)
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  • Senior Cyber Security Engineer

    ManTech (Chantilly, VA)
    …with the network service provider to develop and maintain detailed network architecture diagrams. + Evaluate system performance, identify areas for ... products such as firewalls, IPS, antivirus tools, application firewalls, high-availability solutions, network management systems , and virtualized systems . +… more
    ManTech (12/13/25)
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  • Principal Cyber Security Engineer

    ManTech (Chantilly, VA)
    systems + Knowledge of Windows and Linux systems , general operating system security practices, TCP/IP networking, 802.1x, and network security concepts + ... You will work alongside cyber experts to develop solutions that enhance network compliance and security posture across DoD systems . **Responsibilities include… more
    ManTech (12/13/25)
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  • Cses III - Firewall Engineer

    CACI International (Springfield, VA)
    …domains. Ensure the overall health and strong security posture of complex network architectures. The Firewall Engineer will be actively involved with all phases ... IDSs, F5 Load Balancers, VPNs, security controls and policies. + Develops system specifications, architecture designs, integration and test plans, and all relevant… more
    CACI International (12/18/25)
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  • Senior SOC Analyst

    General Dynamics Information Technology (Springfield, VA)
    …+ Communicates alerts to agencies regarding intrusions and compromises to their network infrastructure, applications, and operating systems + Assists with ... FIREPOWER, and security related activities to secure and harden systems . + Work with vendors to ensure the DCO...a Cyber Defense Incident Responder + Requires familiarity with System & Network concepts, user authentication, and… more
    General Dynamics Information Technology (01/03/26)
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  • Senior Principal Cyber Security Engineer

    ManTech (Chantilly, VA)
    systems + Knowledge of Windows and Linux systems , general operating system security practices, TCP/IP networking, 802.1x, and network security concepts + ... software products such as firewalls, IPS, Anti-Virus solutions, application firewalls, high availability solutions, network management systems , and virtual … more
    ManTech (12/13/25)
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  • IT Service Integrator

    CACI International (VA)
    …support to ENS as an IT Services Integrator for cabling infrastructure, network , voice, access control and security system modernization requirements. Engineers ... with switch vendors to facilitate repair, contracted maintenance and system upgrades. + Seeks out new systems ,...Network - Wired and Wireless + Security Camera Systems + Voice over Internet Protocol + Access Control… more
    CACI International (11/29/25)
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  • Cloud Support Engineer Nights

    ManTech (Vienna, VA)
    …with SLAs + Monitoring and triaging incidents triggered by automated alerting systems ; following established SOPs and runbooks for investigation and escalation + ... product and backline engineers to reproduce issues, validate fixes, and enhance system stability and documentation + Identifying trends or repeat incidents and… more
    ManTech (12/13/25)
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