• Principal Cyber Security Engineer

    ManTech (Chantilly, VA)
    …systems, general operating system security practices, TCP/IP networking, 802.1x, and network security concepts + IAT Level II certification (GSEC, ... 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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  • Senior Cyber Security Engineer

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

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

    Microsoft Corporation (Reston, VA)
    …deadline pressure when the situation is ambiguous. Applied experience with firewall, network security , or network monitoring solutions, including vendor ... technical resources to jointly drive project/technical governance of the design, build, and deployment into use of proof of concepts and pilots. Work with the… more
    Microsoft Corporation (12/14/25)
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  • System Administrator

    Parsons Corporation (Centreville, VA)
    …servers, ensuring optimal performance, security , and availability. + Administer Cisco network devices, including routers, switches, and firewalls, to ensure ... Windows and Linux operating systems. + Extensive experience with Cisco network devices and configurations. + Expertise...Familiarity with hybrid cloud solutions. + Knowledge of advanced network security practices and tools. + Experience… more
    Parsons Corporation (12/04/25)
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  • Virtual Platform Administrator

    TekSynap (VA)
    … Associate (CCNA) certification + DoD 8570 IAT Level II Baseline Certification: + COMPTIA Security + CE + Cisco Certified Network Associate (CCNA) + COMPTIA ... AWS, Microsoft Azure, OCI). + Strong knowledge of cloud deployment models, network architecture, security , and virtualized infrastructure. + Proficient… more
    TekSynap (11/15/25)
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  • Audio Visual / Video Teleconferencing Engineer

    Leidos (Arlington, VA)
    …and repair. + Manage and maintain conference rooms, VTC endpoints (eg, Cisco , Polycom, Crestron), and associated network infrastructure. + Install, configure, ... ensuring seamless and reliable communication capabilities. Your skills in network protocols, AV technologies, and design/integration will be crucial to… more
    Leidos (12/12/25)
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  • Systems Engineer 5

    M. C. Dean (Vienna, VA)
    …+ Experience engineering and implementing platforms and services in a software-defined network environment. + Experience with DoD IT security requirements ... With over 7,000 employees, our capabilities span electrical, electronic security , telecommunications, life safety, automation and controls, audiovisual, and IT… more
    M. C. Dean (11/26/25)
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  • IDS / IPS Engineer - Active TS/SCI with CI Poly

    ENS Solutions (Reston, VA)
    …Response (NDR) solutions, including Trellix/FireEye, Corelight, Endace, Vectra AI, Dark Trace, Cisco Security Network Analytics, Open XDR, Fortinet FortiNDR, ... configuration and deployment tasks. + Proficient understanding of network protocols, intrusion detection methodologies, and security event correlation.… more
    ENS Solutions (12/14/25)
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  • Systems Engineer

    TekSynap (VA)
    …Sensitive Clearance **Certifications** + DoD 8570 IAT Level II Baseline Certification: + COMPTIA Security + CE + Cisco Certified Network Associate (CCNA) + ... clearly to varied audiences, including project teams and management. + Support deployment , security , and administration of commercial cloud provider (CCP)… more
    TekSynap (11/15/25)
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