Senior Linux & Cloud SysAdmin

CACI; Laurel (MD); On-site; USD 121,000 - 266,000; Full time

Job summary

CA CI? CACI in Laurel, MD is seeking a Senior Systems Administrator to support mission-critical Linux environments across OpenStack, AWS, and VMware, focusing on VM management and DevOps. You will work with Ansible, Rancher, and kubectl to ensure cluster health.

The role requires TS/SCI with Polygraph, Security+, and 15 years of experience in large-scale sysadmin duties; Bachelor's or equivalent experience, with emphasis on security and enterprise-grade operations.

Qualifications

• Active NSA TS/SCI with Polygraph.
• Strong Linux administration and troubleshooting skills.
• Experience or exposure to Ansible.
• Hands‑on experience managing and securing VMs (STE/STN).
• Active Security+ Certification (required for all Infrastructure Team members).
• 15 years of Sys Admin experience supporting programs of similar scope and complexity.
• Bachelor’s degree in a technical discipline OR an additional 5 years of Sys Admin experience may be substituted for the degree.

Responsibilities

• Execute core Sys Admin tasks, including server certificate lifecycle management, VM health monitoring, software updates (manual and YUM-repo based), and ensuring all systems meet enterprise security standards.
• Monitor and manage production Linux VMs—both standalone and those integrated into Kubernetes clusters—across multiple hosting platforms.
• Partner closely with customers and development teams to meet product needs ranging from simple VM changes to complex cluster builds.
• Perform DevOps‑oriented tasks such as running and maintaining Ansible playbooks, pushing configuration updates, and monitoring Kubernetes clusters using Rancher or kubectl to ensure node and pod health.

Skills

Linux administration

Troubleshooting

Education

Bachelor’s degree in a technical discipline

5 years experience substitution for degree

Tools

Ansible

Rancher

kubectl

Kubernetes

VMware

OpenStack

AWS

PKI

CentOS

RHEL

Job description

CA CI? CACI in Laurel, MD is seeking a Senior Systems Administrator to support mission-critical Linux environments across OpenStack, AWS, and VMware, focusing on VM management and DevOps. You will work with Ansible, Rancher, and kubectl to ensure cluster health.

The role requires TS/SCI with Polygraph, Security+, and 15 years of experience in large-scale sysadmin duties; Bachelor's or equivalent experience, with emphasis on security and enterprise-grade operations.