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# Senior Linux System Administrator - Large-Scale Clusters

- **Company:** CTRL,  LLC
- **Location:** Fort Meade, MD, United States (Remote available)
- **Experience:** Expert
- **Salary:** $245,398.0 - $270,962.0
- **Contract:** Permanent contract
- **Skills:** Bash Shell, Computer Clusters, Computer Networks, Linux, VMware ESX Servers, General Parallel File Systems, Hadoop Distributed File System, Linux Commands, Nagios, Red Hat Enterprise Linux, Ansible, Weka, Ceph (Software), Scripting, Saltstack, Kubernetes, Atlassian Tools, Free and Open-Source Software, Splunk, Docker
- **Published:** November 5, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=401242da5385f8d1

## About the Role

Applicants must currently hold an active TS/SCI with polygraph. Ctrl+ does not sponsor new security clearances or clearance upgrades. Applicants who do not meet this requirement cannot be considered., * 15 years of relevant experience with a Bachelor's degree in a technical discipline (20 years without a degree). Security+ certification required.

 * Linux command-line tools
 * Bash and Python scripting
 * Large-scale Linux cluster administration
 * Compute, network, memory and storage components
 * Red Hat Satellite
 * Splunk
 * VMware ESXi
 * SaltStack and Ansible
 * HPE OneView and Nagios
 * Security compliance policies
 * Docker

Preferred qualifications

 * Kubernetes
 * Weka, Ceph, GPFS or HDFS
 * Jira and Confluence

## Description

Keep a large-scale Linux cluster secure, fast and reliable, from installs and monitoring to problem resolution.

The mission

Support large-scale compute, network, memory and storage infrastructure for mission operations.

What you'll do

 * Install and support COTS, GOTS and open-source software
 * Run day-to-day cluster operations, monitoring and problem resolution
 * Maintain system security and configure network components
 * Manage VMware ESXi virtualization
 * Automate operations with SaltStack and Ansible
 * Support call-in operations as needed