Linux Administrator

• system architecture.

Job Title:

Linux Administrator

Job Category:
Information Technology

Time Type:
Full time

Minimum Clearance Required to Start:
Secret

Employee Type:
Regular-Long Term Assignment

Percentage of

Travel Required:

Up to 10%

Type of Travel:
Local

* * *

Join a high-impact infrastructure engineering team responsible for architecting, securing, and maintaining enterprise-scale Linux environments. Lead modern automation and Infrastructure as Code (IaC) initiatives. Drive adoption of modern container orchestration and next-generation Agentic AI tooling to streamline sysadmin workflows and proactive operations. Collaborate closely with development and Dev Ops teams to establish robust CI/CD deployment pipelines and automated platform management. Opportunity for continuous professional growth within a collaborative, forward-thinking technology organization.

• Manage, configure, and maintain high-availability Enterprise Linux servers across production and non-production environments.
• Design, write, test, and maintain robust Ansible playbooks, roles, and automated workflows for
• configuration management and patch automation.
• Deploy, manage, and troubleshoot containerized workloads using Docker and Kubernetes orchestration
• platforms.
• Build, optimize, and maintain CI/CD automation pipelines using Git Hub Actions, Azure Dev Ops, and
• Ansible Automation Platform / AWX.
• Author modular Infrastructure as Code (IaC) templates and automation scripts to provision reproducible
• system architecture.
• Develop Python and Bash automation scripts for monitoring, incident triage, system diagnostics, and
• operational task execution.
• Leverage and integrate Agentic AI assistants and LLM-driven tooling to automate Linux administrative
• tasks, log analysis, and incident resolution.
• Maintain version control hygiene and code collaboration workflows using Git and Git Hub (branching
• strategies, PR reviews, automation).
• Implement strict security hardening standards (CIS benchmarks, SELinux, RBAC), patch management,
• and vulnerability remediation.
• Participate in on-call rotation, performance tuning, capacity planning, and comprehensive disaster
• recovery drills.

• Currently hold an Active Secret clearance with the ability to obtain and maintain a TS/SCI.
• Currently a US Citizen
• 5+ years of hands-on Enterprise Linux Administration experience (RHEL, CentOS, Rocky Linux, Ubuntu Server) in mission-critical environments.
• Extensive experience writing, testing, and deploying Ansible playbooks, roles, and inventory structures at scale.
• Proven experience deploying and managing containerized applications with Docker and container orchestration platforms (Kubernetes / Open Shift).
• Strong programming/scripting proficiency with Python and Bash for infrastructure automation and systems tooling.
• Solid experience with Git-based version control workflows and repository management (Git Hub, Git Lab).
• Hands-on experience building and executing CI/CD pipelines in Azure Dev Ops, Git Hub Actions, or Ansible Workflows.
• Demonstrated experience defining and deploying Infrastructure as Code (IaC) using tools like Terraform, Open Tofu, or Cloud Formation.
• Practical experience integrating Agentic AI tools / autonomous AI workflows to accelerate Linux administration, diagnostics, and script generation.

• Industry certifications such as Red Hat Certified Engineer (RHCE), Certified Kubernetes Administrator
• (CKA), or Azure Dev Ops Engineer Expert.
• Experience integrating AI agents with enterprise APIs, MCP (Model Context Protocol), or operational
• chatops platforms.
• Familiarity with centralized observability and logging stacks (Prometheus, Grafana, Open Telemetry,
• ELK/Open Search).
• Solid understanding of enterprise networking protocols, load balancers, DNS, SSL/TLS certificate
• lifecycle management, and firewall configuration.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

CACI values…