• Systems Administrator

    Linchpin Solutions, Inc. (Aberdeen Proving Ground, MD)
    …troubleshoot key infrastructure components including Windows Active Directory, Group Policy, DNS , Microsoft Exchange, and both physical and virtual server systems. ... Windows Active Directory, Group Policy Objects and Domain Name Service ( DNS ). + Demonstrated proficiency with Microsoft Windows Server operating systems, including… more
    Linchpin Solutions, Inc. (11/18/25)
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  • Cybersecurity Architect

    SAIC (Santa Ana, CA)
    …protocols, and encryption methods are in place. + Design and implement a secure DNS architecture utilizing DNSSEC or private DNS services. + Lead the design, ... tuning, and integration of device logs into an enterprise SIEM. + Develop advanced correlation rules, alerts, dashboards, and reporting mechanisms to identify, prioritize, and track security threats and anomalies. + Develop, maintain, and test the OCSD… more
    SAIC (11/18/25)
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  • Systems Administrator 1

    DCCA (Annapolis Junction, MD)
    …Vmware, kvm virtualization, Storage arrays (NetApp), Ansible, Docker/Kubernetes, GitLab, DNS , NTP, FreeIPA, STE/STN tools LatteArt, and Nessus. Required Skills: ... Vmware, kvm virtualization, Storage arrays (NetApp), Ansible, Docker/Kubernetes, GitLab, DNS , NTP, FreeIPA, STE/STN tools LatteArt, and Nessus. Required… more
    DCCA (11/17/25)
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  • Cloud Administrator​

    Leidos (Ashburn, VA)
    …policies. + Hands on experience with and knowledge of networking concepts ( DNS , VPNs, load balancers, etc.) and cloud-based networking configurations. + Experience ... in networking concepts and configurations, such as VPCs, subnets, VPNs, DNS , load balancers, and security groups. **Clearance:** + None **Preferred Qualifications:**… more
    Leidos (11/15/25)
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  • Network Architect

    Rush University Medical Center (Chicago, IL)
    …such as Spanning tree, EIGRP, BGP, HSRP, VOIP, QOS, TCP/IP, 802.1q, 802.1x, MPLS, DNS , Syslog, TACACS, SD-WAN, OSPF + Ability to work with network security devices ... for IP Addressing and Subnetting, including design and implementation. + SME for DNS and DHCP, including design and implementation. + SME for VLANs and networking… more
    Rush University Medical Center (11/14/25)
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  • IT Support Engineer I (ONS)

    Amazon (Culver City, CA)
    …Mac or Linux Operating systems support experience - 2+ years of networking (such as DNS , DHCP, SSL, OSI Model, and TCP/IP) experience - Can travel to local sites up ... Network Defender) or Network+ or Security- 4+ years of networking (such as DNS , DHCP, SSL, OSI Model, and TCP/IP) experience - Experience supporting video conference… more
    Amazon (11/13/25)
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  • Cloud Firewall Engineer (Hybrid)

    RTX Corporation (Farmington, CT)
    …divestiture activities as it relates to network security is preferred. Expertise in DNS , DHCP and IP Address Management systems is also important. **What you will ... in a related field and minimum 5 years experience + Understanding of DNS /DCHP/IP address management systems + Thorough understanding of firewalls, NAT and packet… more
    RTX Corporation (11/13/25)
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  • SCI Cloud Engineer

    Leidos (Colorado Springs, CO)
    …enforce zero trust and network segmentation principles. + Troubleshoot and optimize DNS , routing, latency, and firewall rules across hybrid environments. + Support ... Bicep, or ARM templates. + Deep understanding of networking protocols (TCP/IP, DNS , DHCP, VPN, routing, subnetting, BGP). + Hands-on experience with CI/CD pipelines… more
    Leidos (11/11/25)
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  • Forensics Analyst- Senior

    ABBTECH Professional Resources, Inc. (Washington, DC)
    …tools. + Advanced knowledge of TCP/IP networking, and network services such as DNS , SMTP, DHCP, etc. + Solid understanding of attacker tradecraft associated with ... IDS concepts, applications protocols, concepts of TCP/IP and the link layer, DNS , fragmentation, IDS fundamentals and initial deployment (eg, snort, bro), IDS rules… more
    ABBTECH Professional Resources, Inc. (11/11/25)
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  • Cloud Administrator (Top-Secret clearance)

    Tetrad Digital Integrity LLC (Ashburn, VA)
    …policies. + Hands on experience with and knowledge of networking concepts ( DNS , VPNs, load balancers, etc.) and cloud-based networking configurations. + Experience ... in networking concepts and configurations, such as VPCs, subnets, VPNs, DNS , load balancers, and security groups. PREFERED QUALIFICATIONS: + AWS Certified… more
    Tetrad Digital Integrity LLC (11/09/25)
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