ClearanceJobs
Systems And Network Administrator
Secure and sustain the backbone of national defenseadminister, optimize, and protect RHEL and Windows systems in mission-critical classified environments. A Day in the Life What You'll Do: Manage, configure, and troubleshoot both Red Hat Enterprise Linux (RHEL) and Windows Server environments Maintain Active Directory, DNS, DHCP, and Group Policy infrastructure Monitor and administer network devices, firewalls, and security controls Support deployment and optimization of virtual environments using VMware, Hyper-V, or KVM Manage storage systems, including XFS NAS in virtualized environments (e.g., TrueNAS) Apply patches, monitor logs, and enforce cybersecurity policies using firewalld, SELinux, Windows Firewall, etc. Implement and manage VPNs, user access controls, and endpoint protection Troubleshoot network and system-level issues in hybrid Linux/Windows environments Automate tasks and deployments using Bash, PowerShell, Ansible, and basic Terraform scripting Mentor junior admins and collaborate across cybersecurity, IA, and DevOps teams Maintain and document system configurations, procedures, and compliance checkpoints Required Qualifications: Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent hands-on experience) 810 years of relevant systems and network administration experience Active Interim Secret clearance CompTIA Network+, Microsoft Certified: Windows Server Fundamentals, or RHCSA (Red Hat Certified System Administrator) Experience with: RHEL 8/9 and command-line tools (Bash, YUM/DNF) Windows Server 2022, Active Directory, IIS, DNS, DHCP, and Group Policy Virtualization (VMware, Hyper-V, KVM) Network configurations (IP addressing, VLANs, firewalls, VPNs) XFS NAS administration in virtualized environments Troubleshooting in hybrid Linux/Windows networks Automation tools (Bash, PowerShell, Python, Ansible, Terraform) Documentation and team collaboration in classified environments Preferred Qualifications: Red Hat Certified Engineer (RHCE) CompTIA Security+ or similar cybersecurity certifications Advanced AD administration (Forest, Trusts, GPOs) Experience with containerization (Docker, Kubernetes) Experience deploying and managing Kubernetes clusters Advanced scripting with PowerShell, Ansible, or Terraform Experience with: Layer 3 networking, NAT, VPN, ACLs, PKI, TLS Network security monitoring tools (Elastic Stack, Wireshark, IDS/IPS) Disaster recovery planning and tools (Veeam, snapshots, replication) Security Information and Event Management (SIEM) Endpoint security and patch management Familiarity with SCCM, MDT, or similar imaging/configuration management tools
Secure and sustain the backbone of national defenseadminister, optimize, and protect RHEL and Windows systems in mission-critical classified environments. A Day in the Life What You'll Do: Manage, configure, and troubleshoot both Red Hat Enterprise Linux (RHEL) and Windows Server environments Maintain Active Directory, DNS, DHCP, and Group Policy infrastructure Monitor and administer network devices, firewalls, and security controls Support deployment and optimization of virtual environments using VMware, Hyper-V, or KVM Manage storage systems, including XFS NAS in virtualized environments (e.g., TrueNAS) Apply patches, monitor logs, and enforce cybersecurity policies using firewalld, SELinux, Windows Firewall, etc. Implement and manage VPNs, user access controls, and endpoint protection Troubleshoot network and system-level issues in hybrid Linux/Windows environments Automate tasks and deployments using Bash, PowerShell, Ansible, and basic Terraform scripting Mentor junior admins and collaborate across cybersecurity, IA, and DevOps teams Maintain and document system configurations, procedures, and compliance checkpoints Required Qualifications: Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent hands-on experience) 810 years of relevant systems and network administration experience Active Interim Secret clearance CompTIA Network+, Microsoft Certified: Windows Server Fundamentals, or RHCSA (Red Hat Certified System Administrator) Experience with: RHEL 8/9 and command-line tools (Bash, YUM/DNF) Windows Server 2022, Active Directory, IIS, DNS, DHCP, and Group Policy Virtualization (VMware, Hyper-V, KVM) Network configurations (IP addressing, VLANs, firewalls, VPNs) XFS NAS administration in virtualized environments Troubleshooting in hybrid Linux/Windows networks Automation tools (Bash, PowerShell, Python, Ansible, Terraform) Documentation and team collaboration in classified environments Preferred Qualifications: Red Hat Certified Engineer (RHCE) CompTIA Security+ or similar cybersecurity certifications Advanced AD administration (Forest, Trusts, GPOs) Experience with containerization (Docker, Kubernetes) Experience deploying and managing Kubernetes clusters Advanced scripting with PowerShell, Ansible, or Terraform Experience with: Layer 3 networking, NAT, VPN, ACLs, PKI, TLS Network security monitoring tools (Elastic Stack, Wireshark, IDS/IPS) Disaster recovery planning and tools (Veeam, snapshots, replication) Security Information and Event Management (SIEM) Endpoint security and patch management Familiarity with SCCM, MDT, or similar imaging/configuration management tools