Senior Linux Systems Administrator - TS Clearance

CACI International; Town of Texas (WI); On-site; USD 87,000 - 182,000; Full time

Job summary

CACI International in Wisconsin seeks a hands-on Linux Systems Administrator III to join our Infrastructure Team supporting EW systems. You will build, troubleshoot, and maintain mission-critical Linux environments including workstations, build servers, and virtual machines.

Responsibilities include patching, hardening, automating with Ansible and Puppet, managing virtualization (Proxmox, VMware), and deploying Docker/Podman containers while coordinating updates across dev/test/prod.

Qualifications

• Bachelor’s degree in a related field or equivalent experience.
• 5+ years of hands-on Linux systems administration.
• Experience with RHEL or similar enterprise Linux.
• Experience with virtualization platforms (Proxmox, VMware).
• Experience with Ansible and Puppet.
• Experience with Docker/Podman and networking.

Responsibilities

• Build, configure, maintain, patch, and upgrade Linux servers and VMs running RHEL/Ubuntu.
• Troubleshoot complex issues across Linux workstations, servers, VMs, storage, and network.
• Administer virtualization platforms such as Proxmox and VMware vSphere.
• Develop and maintain automation/configuration management with Ansible and Puppet.
• Configure and maintain Linux networking, storage, and services.
• Deploy container workloads with Docker and Podman; support Kubernetes environments.
• Review vulnerability scans and remediate findings; patching and hardening.
• Coordinate system updates across development, test, and production environments.

Skills

Linux system administration

RHEL

VMware vSphere

Proxmox

Ansible

Puppet

Docker / Podman

Networking

Security clearance

Education

Bachelor's degree or equivalent experience

Tools

Proxmox

VMware vSphere

Ansible

Puppet

Docker

Podman

Job description

CACI International in Wisconsin seeks a hands-on Linux Systems Administrator III to join our Infrastructure Team supporting EW systems. You will build, troubleshoot, and maintain mission-critical Linux environments including workstations, build servers, and virtual machines.

Responsibilities include patching, hardening, automating with Ansible and Puppet, managing virtualization (Proxmox, VMware), and deploying Docker/Podman containers while coordinating updates across dev/test/prod.