• Infrastructure Engineer

    Improveit Home Remodeling (Columbus, OH)
    …Five9 + Manage virtualization (VMware), Windows/Linux servers, Active Directory, DNS , DHCP, storage, and enterprise networking (Cisco/Meraki/Palo Alto) Reliability, ... Security & Performance + Own monitoring, alerting, and incident response - with special focus on Five9 call quality, SIP health, and real-time performance + Enforce security best practices (Zero Trust, endpoint protection, PCI-DSS for call recordings,… more
    Improveit Home Remodeling (12/14/25)
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  • Network Engineer II - DDI

    Travelers Insurance Company (Hartford, CT)
    …You Do?** + This role will be primarily responsible for managing and supporting DNS , DHCP, IP Management infrastructure and services, on premise and in the cloud, ... and support service automation and pipeline development for delivery to end users. + Responsible for performing complex analysis, design and implementation of network infrastructure platforms across cloud and on-premises environments with a degree of accuracy… more
    Travelers Insurance Company (12/13/25)
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  • Systems Administrator - CSfC

    CACI International (Fort Bragg, NC)
    …network protocols such as TCP/IP, Dynamic Host Configuration, Domain Name System ( DNS ), and directory services. + Knowledge of network traffic analysis (tools, ... methodologies, processes). + Knowledge of how traffic flows across the network (eg, Transmission Control Protocol (TCP), Internet Protocol (IP), Open System Interconnection Model (OSI)). + Knowledge of risk management processes (eg, methods for assessing and… more
    CACI International (12/13/25)
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  • Arkime Engineer - Active TS/SCI with CI Poly

    ENS Solutions (Washington, DC)
    …in packet analysis, PCAP management, DPI technologies, and network protocols (TCP/IP, DNS , TLS, HTTP, etc.). + Familiarity with Suricata, Zeek, or other packet/flow ... analysis platforms. + Experience engineering within a Zero Trust Architecture (ZTA), including segmentation, continuous verification, and identity-centric access. + Proficiency with Linux systems administration, containers, and distributed systems. +… more
    ENS Solutions (12/13/25)
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  • System Administrator

    Lockheed Martin (Kirtland AFB, NM)
    …and virtualization * Familiarity with Domain architecture, including Active Directory, DNS , DHCP, Domain Trust, and file share management * Experience with ... common industry operating systems, such as Windows Server \(2008\-2019\), Linux, Solaris, RHEL, and CentOS * Understanding of solution implementation for Advanced Computer Security Directives and Requirements, including the Risk Management Framework \(RMF\)… more
    Lockheed Martin (12/13/25)
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  • Building Automation Technical Lead

    V2X (Springfield, VA)
    …regarding their experience in network administration, Domain Name Server ( DNS ) maintenance, Field Level Network (FLN) troubleshooting, and commissioning. Security ... Clearance Requirement: This position requires a current Top Secret / Sensitive Compartmented Information (TS/SCI) Clearance. At V2X, we are deeply committed to both equal employment opportunity, including protection for Veterans and individuals with… more
    V2X (12/13/25)
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  • Endace Platform Engineer - Active TS/SCI with CI…

    ENS Solutions (Reston, VA)
    …platforms. + Solid understanding of core network protocols (TCP/IP, TLS, DNS , HTTP/S, NetFlow/IPFIX, etc.) + Active TS/SCI clearance; willingness to take ... a polygraph exam + Associate's degree and 5+ years of experience supporting IT projects and activities, Bachelor's degree and 3+ years of experience supporting IT projects and activities, or Master's degree and 1+ year of experience supporting IT projects and… more
    ENS Solutions (12/13/25)
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  • Modernization Cyber Network Packet / Protocol…

    Lockheed Martin (Hanover, MD)
    …* Protocol Deep‑Dive - In‑depth knowledge of TCP/IP, UDP, TLS/SSL, HTTP/2, DNS , SIP, and emerging protocols; ability to reverse‑engineer undocumented fields\. * ... Custom Dissector Development - Write C dissectors to expose hidden protocol data; integrate them into automated analysis pipelines\. * Automated Analysis Pipelines - Build containerized workflows \(Docker/Kubernetes\) that ingest PCAP streams, extract… more
    Lockheed Martin (12/13/25)
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  • Zscaler & Network Security Specialist

    Cushman & Wakefield (Creve Coeur, MO)
    …GlobalProtect) and Cisco (FTD, Meraki, Catalyst) + Deep understanding of TCP/IP, DNS , VPN, NAT, BGP, VLANs, and routing protocols + Familiarity with identity ... and access management (IAM), SSO, and cloud platforms (Azure, AWS) + Experience of Azure Networking (including vWAN hubs) **Preferred Certifications** + Zscaler Certified Cloud Professional (ZCCP) + Palo Alto Certified Professional (Network Security) +… more
    Cushman & Wakefield (12/13/25)
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  • IT Infrastructure Architect M365 (Remote)

    Curtiss-Wright Corporation (Parsippany, NJ)
    …systems (including advanced capabilities such as Active Directory, Group Policy, DNS , WINS, etc.). + Experience in migrating infrastructure from on-premises to ... cloud solutions. + Strong understanding of IT infrastructure, networks, and security. + Excellent communication and problem-solving skills. + Experience with ITIL practices such as change control. + Experience with Virtualization Technologies. + Occasional… more
    Curtiss-Wright Corporation (12/13/25)
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