• Senior Systems Engineer - Cybersecurity

    M. C. Dean (Vienna, VA)
    …specific network equipment (eg Cisco, Palo Alto, Juniper) and working experience with routing , switching , and firewall configuration is a plus; **General:** + ... Demonstrated time management and organization skills while working in a fast-paced, multidiscipline team environment; + Strong analytical and problem-solving skills; + Strong communication (oral and written) skills; + Proficiency with workflow and lifecycle… more
    M. C. Dean (08/27/25)
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  • Sr OT Network Engineer (Virginia Beach, VA)

    Jacobs (Virginia Beach, VA)
    …control systems (DCS/PLC) * 5+ years of networking technology knowledge (TCP/IP, routing , or switching ) * Experience working with firewalls and wireless ... communication technology * Experience working with virtualization platforms, Active Directory, DNS, and Domain Controller * Familiarity with IEC-62443 or other industrial cybersecurity standards is a plus. * Cisco CCNA, Fortinet NSE-4, JNCIA or equivalent… more
    Jacobs (08/27/25)
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  • Senior Communications System Engineer

    Parsons Corporation (Herndon, VA)
    …TSM, WINT-T). + Strong knowledge of Layer 1-3 networking, including routing / switching , waveforms, RF propagation, and secure communications protocols. + ... Demonstrated experience designing or integrating mission-critical communication systems for DOD or IC programs. + Familiarity with tools such as DOORS, SysML/UML, or Model-Based Systems Engineering practices. + Experience producing high-quality,… more
    Parsons Corporation (08/26/25)
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  • Senior Field Engineer

    ManTech (Herndon, VA)
    …(IAM III/IAT III) and CCNA certification + Hands-on experience with Cisco routing , switching , and firewall technology + Experience with primary network ... topologies, LANs, WANs and other common network standards + Strong understanding of network protocols and technologies, including TCP/IP, DNS, DHCP, and QoS, MPLS **Preferred Qualifications:** + One of the following certifications: Certified Business Analysis… more
    ManTech (08/21/25)
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  • SOC Analyst

    CGI Technologies and Solutions, Inc. (Lebanon, VA)
    …in Intrusion Detection or Prevention Systems * Knowledge of: TCP/IP, computer networking, routing and switching * Experience in Linux/UNIX and Windows based ... devices at the System Administrator level * System log forensics (Syslog, Event Viewer) * Strong troubleshooting, reasoning and problem-solving skills * Team player, excellent communication skills, good time management * Organizational skills and the ability… more
    CGI Technologies and Solutions, Inc. (08/20/25)
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  • Lead Network Engineer

    ManTech (Chantilly, VA)
    …system architecture. + Remaining well versed in a multi-vendor environment for layer 2/3 switching and routing , firewalls, SAN directors, as well as virtual and ... cloud-hosted networking technologies. + Installing, configuring, and maintaining entire physical networking infrastructure including firewalls and core/distribution/access switches and routers. + Utilizing network monitoring applications for traffic, access,… more
    ManTech (08/15/25)
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  • ​​Cyber Detection Engineer ​

    Leidos (Ashburn, VA)
    …threat hunt missions. + Understanding of complex Enterprise networks to include routing , switching , firewalls, proxies, load balancers. + Working knowledge of ... common (HTTP, DNS, SMB, etc) networking protocols + Familiarity with operation of both Windows and Linux based systems. + Proficient with scripting languages such as Python or PowerShell + Familiarity with Splunk Search Processing Language (SPL) and/or Elastic… more
    Leidos (08/15/25)
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  • Network Team Lead

    TekSynap (Arlington, VA)
    …certification. + Advanced proficiency in Networking concepts. + Experience with: + Routing ; + Switching ; + Virtualization technology; + Hybrid Infrastructure ... deployments; + Network connectivity (MPLS, P2P, VPN, remote access); + Software Defined Networking (SDN); + NIPS/NIDS; + Load balancing; + DNS; + DHCP; + QoS, OTV; + Network Security; + Proxies; + Firewalls; + Hardware knowledge for installation, repair,… more
    TekSynap (08/14/25)
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  • SURTASS Operations & Maintenance (O&M) Technician…

    V2X (Reston, VA)
    …type network). + Windows based network management and administration. + Cisco routing and switching , and server and router configuration and management. ... + UNIX / LINUX based processing systems management. + Other networking tools, software, and appliances. + Graduate of Navy Communications Security (COMSEC) Manager School. + Three years of experience serving in a COMSEC Program. + Three years of experience… more
    V2X (08/14/25)
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  • Cyber Threat Hunt Analyst​

    Leidos (Ashburn, VA)
    …threat hunt missions. + Understanding of complex Enterprise networks to include routing , switching , firewalls, proxies, load balancers. + Working knowledge of ... common (HTTP, DNS, SMB, etc) networking protocols + Familiarity with operation of both Windows and Linux based systems. + Proficient with scripting languages such as Python or PowerShell + Familiarity with Splunk Search Processing Language (SPL) and/or Elastic… more
    Leidos (08/14/25)
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