Sr. Linux System Administrator / System Engineer

**An active TS/SCI with Polygraph is required for this position **
 Position Overview

We are seeking a highly experienced Senior Linux System Administrator / System Engineer to support a high-visibility mission environment within the Intelligence Community. This role requires deep expertise in Linux system administration, virtualization, automation, and security compliance, along with the ability to operate in a fast-paced, mission-critical setting.

Key Responsibilities

• Administer, maintain, and optimize Linux-based systems (RHEL/CentOS) in a secure enterprise environment
• Support mission-critical infrastructure with a focus on availability, performance, and security
• Create, configure, and manage VMware virtual machines
• Install, configure, and maintain JBoss application environments
• Implement automation solutions using Ansible, Terraform, or similar tools
• Perform system monitoring, troubleshooting, and root cause analysis
• Support security compliance initiatives and system hardening efforts
• Collaborate with cross-functional teams across storage, networking, and security domains
• Provide support for 24x7 operations, including on-call and after-hours response
  

Required Qualifications

• 10+ years of experience as a Linux System Administrator/Engineer
• Active TS/SCI with Polygraph.
• Strong expertise with Linux (RHEL/CentOS) environments
• Experience with VMware VM creation, configuration, and operations
• Security+ Certification (required)
• Experience supporting IC (Intelligence Community) mission environments
  

Highly Desired Qualifications

• Active or recent SYS3 Privileged Access
• Extensive experience with JBoss installation, configuration, and administration
• Hands-on experience with automation tools such as Ansible or Terraform
• Storage systems and administration
• Networking fundamentals and infrastructure support
• Security compliance and auditing
• Authentication systems
• Scripting with Shell and/or Python
• Physical server administration
• Experience with Oracle Database and potential DBA exposure
• Familiarity with JSON (JavaScript Object Notation)

Salary range for this position: $151,000 - $170,000 #CJ