• Principal Satellite Communications Engineer

    ManTech (Reston, VA)
    …+ Strong Network administration experience, including DNS, routing, and firewall configuration + Strong experience monitoring satellite communications equipment and ... networks to resolve potential issues before they create outages or otherwise interrupt communications **Preferred Qualifications:** + N/A **Clearance Requirements:** + Must have an active/current Top Secret security clearance. **Physical Requirements:** + Must… more
    ManTech (09/18/25)
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  • Systems Engineer

    Syms Strategic Group, LLC (SSG) (Richmond, VA)
    …DynaTrace, ScienceLogic, and CloudWatch + An understanding of network protocols, firewall configurations, and Virtual Private Network (VPN) setup + Experience with ... network monitoring and diagnostic tools + Knowledge of security best practices for production systems + Experience implementing security measures, conducting audits, and ensuring compliance with industry standards + Working knowledge of database systems such… more
    Syms Strategic Group, LLC (SSG) (09/17/25)
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  • Senior Linux Systems Administrator (NetServ)

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    …of a centralized directory for authentication + Manage security, including basic firewall and SELinux configuration + Configure static routes, packet filtering, and ... network address translation + Set kernel runtime parameters + Produce and deliver reports on system utilization + Use shell scripting to automate system maintenance tasks + Configuring system logging, including remote logging + Configure a system to provide… more
    UIC Government Services and the Bowhead Family of Companies (09/17/25)
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  • ​​Network Engineer​

    Leidos (Ashburn, VA)
    …on-premises and AWS cloud environments. + Experience on reviewing AWS firewall /security group requests from a security-first perspective. + Experience on ... troubleshooting and resolving networking issues in AWS environments. + Support and maintain large-scale AWS network architecture, including VPCs, DNS, subnets, routing, remote access technologies, and security constructs. + Experience on maintaining AWS… more
    Leidos (09/17/25)
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  • IBM i Security Analyst

    Cognizant (Richmond, VA)
    …including system hardening, access control, and audit logging. + Experience with firewall rule and policy compliance, governance, and enforcement. + Proven track ... record managing certifications and compliance audits. + Strong understanding of encryption protocols, secure communications, and certificate management in IBM i environments. + Familiarity with security frameworks and standards such as ISO 27001 (ISMS), ISO… more
    Cognizant (09/16/25)
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  • Journeyman Field Engineer

    ManTech (Reston, VA)
    …Strong Network administration experience, including DNS, routing, and firewall configuration + Strong infrastructure administration experience, including ... technologies such as MongoDB, PostgreSQL, Consul, Vault, Nomad or similar technologies + Experience with general systems administration enabling tools such as Jira, Git, and Gradle/Maven **Preferred Qualifications:** + Cloud administration and remote… more
    ManTech (09/16/25)
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  • NCIS Network Engineer | TS/SCI clearance

    General Dynamics Information Technology (Quantico, VA)
    …Spanning-Tree, VLANs, 802.1q, QoS, Cisco ASA with Active/Active Multiple Contexts + Firewall Experience Required- Cisco ASA 5500X, Juniper SRX, Forcepoint SW + ... Expert level configuration of Cisco routers and switches including: 4500/6500, 3750, 3850, and ASR 1000 + Nexus 2K/5K/7K/9K Data Center Experience + Experience with configuration and management of firewalls; Cisco Firepower, Palo Alto, Forcepoint Sidewinder,… more
    General Dynamics Information Technology (09/16/25)
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  • Network Engineer III

    CACI International (Springfield, VA)
    …NetOne, HP Network Node Manager, etc.) * Experience with CISCO and Juniper firewall /VPN devices * Experience with supporting IP services to connect to to NIPRNET, ... SIPRNET and JWICS (IPv4, VPN, IPv6, Multicast, QOS, SDN, SNMP, VOIP, VTC, etc - ** ** **What You Can Expect:** **A culture of integrity.** At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of… more
    CACI International (09/13/25)
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  • Computer Systems Analyst

    ManTech (Herndon, VA)
    …IT Operations experience + 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; Very strong knowledge of routing protocols (eg, BGP, EIGRP, OSPF) and network protocols (eg, TCP/IP, GRE, IPSEC, and VRF) +… more
    ManTech (09/13/25)
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  • Sr. Kubernetes Platform Engineer

    Insight Global (Reston, VA)
    …associated open-source components. * Own platform network configuration (DNS, firewall services/TIC 3.0, VPN/tunnels). * Direct base image automation, distribution, ... and security incident response. * Implement and maintain load balancer configurations (public & ingress, TIC 3.0 compliance). * Drives development of golden paths and developer self-service capabilities. * Lead contingency planning and disaster recovery… more
    Insight Global (09/12/25)
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