Caribou Thunder

Systems and Network Administrator

$110,000–$140,000 | Newport News, VA | Interim Secret Clearance Required

Secure and sustain the backbone of national defense—administer, 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)

• 8–10 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

Who is Caribou Thunder?

Caribou Thunder is a premier Woman-Owned Small Business (WOSB) defense contractor supporting mission-critical programs across the Department of Defense and Intelligence Community. With a presence in over a dozen states and OCONUS, we specialize in systems engineering, cybersecurity, software development, and satellite communications.

Why Caribou Thunder?

• Mission Impact – Administer and secure classified systems that directly support defense operations

• Tech Depth – Work with complex enterprise systems in high-clearance environments

• Growth Potential – Advance into cloud architecture, cybersecurity, or infrastructure leadership

• Cleared Culture – Join a team that thrives in secure, agile, and technically rigorous programs
  
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