• Exchange Engineer

    ManTech (Chantilly, VA)
    …Exchange server infrastructure. + Monitor, document, and report on system utilization and capacity + Resolve escalated email routing, connectivity, permissions, ... and filtering support issues + Document processes and procedures and train...and perform periodic test restores + Performs break/fix troubleshooting, server /software updates and feature enhancements to MS Exchange and… more
    ManTech (05/24/25)
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  • Telephony Engineer

    ManTech (Mclean, VA)
    …facilities. + Collaborate with customers and vendors to define voice communication system requirements. + Integrate telephony systems (VoIP, analog, ISDN) with ... + Utilize BESS Billing and Telephony Provisioning Tools to support telephony systems . + Develop, test, and...applications. + Knowledge and hands on experience with telephony systems and Linux server management, including installation,… more
    ManTech (07/10/25)
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  • Enterprise IT Support Officer Equipment…

    ManTech (Herndon, VA)
    …the Sponsor's new unclassified network LAN infrastructure. + Special non-commercial systems administrator experience (access management/file transfer) + VoIP ... **ManTech** seeks a motivated, career and customer-oriented **Enterprise IT Support Officer (EITSO)** **- Equipment and Telephony Installer** to join our team in… more
    ManTech (06/03/25)
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  • Citrix Engineer

    SAIC (Springfield, VA)
    …projects to client, senior technical engineering lead, or project manager. + Support system re-design, enhancements and/or upgrades to existing production Remote ... on government requirements. Responsibilities include: + Performs engineering technical support for Microsoft Server 2022, Citrix LTSR...Access (Citrix) systems . + Support test and deploy new… more
    SAIC (06/17/25)
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  • Junior Software Developer

    ManTech (Mclean, VA)
    …telephony software. + Work independently developing and testing servers. + Monitor server performance, troubleshoot issues, and optimize systems for scalability ... web applications. + Knowledge and hands on experience with telephony systems and Linux server management, including installation, configuration, troubleshooting,… more
    ManTech (07/10/25)
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  • Cybersecurity Engineer

    Steampunk (Mclean, VA)
    …the product being deployed and/or maintained. **Preferred** + Former Developer or Systems Administrator experience + Working knowledge of technologies used for ... an enterprise application stack, including the OS, Database, Application Server , Load Balancer, and Web Server layers....findings and remediations in an enterprise knowledge base + Support Information System Security Officers (ISSO) with… more
    Steampunk (07/08/25)
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  • Security Control Assessor (SCA) (TS/SCI)

    Tau Six (Chantilly, VA)
    …+ Experience with assessing security relevant applications. + Experience as a System Administrator , Information System Security Manager, or Information ... (RMF). + Security Assessment Report which focuses on the assessment of an information system in support of the authorization determination. Shall provide a draft… more
    Tau Six (04/23/25)
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  • Platform/Infrastructure Engineer

    Nightwing (Sterling, VA)
    …+ Linux Certifications: Linux Professional Institute (LPI), Certified Linux System Administrator (CLSA). + Infrastructure-as-Code Certifications: Terraform ... Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our… more
    Nightwing (06/27/25)
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  • Sr. NOSC Technician

    Leidos (Reston, VA)
    …The candidate will obtain and maintain System Administrator and\or Network Administrator II functions and services in support of the agency and customers ... **Description** Leidos is seeking a **Sr. Network/ System Technician** to support monitoring large-scale...patches, and communicate the health of the DTRA IT Server , Storage, and Network infrastructures to ensure continuous, secure,… more
    Leidos (07/16/25)
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  • Application Security Engineer

    Steampunk (Mclean, VA)
    …the product being deployed and/or maintained. **Preferred** + Former Developer or Systems Administrator experience + Working knowledge of technologies used for ... interact with one another. You will work directly with system admin teams to assist and remediate vulnerabilities and...an enterprise application stack, including the OS, Database, Application Server , Load Balancer, and Web Server layers.… more
    Steampunk (07/08/25)
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