Senior Systems Administrator

Senior Systems Administrator | Madison, IL | Hybrid | $92,300.00 - $166,850.00

This employer is a globally recognised leader in technology-enabled services and mission software, dedicated to supporting defense and intelligence customers in a rapidly evolving security landscape. They foster an environment of innovation and require proactive professionals to ensure the success of critical initiatives.

The Role

• Lead system administration for Linux and Windows-based systems in secure, mission-critical environments.
• Architect and manage complex server, storage, and virtualization infrastructure.
• Perform OS installation, configuration, hardening, and patching in compliance with stringent government standards.
• Monitor and tune system performance, conduct root cause analysis, and resolve complex issues.
• Support backup, recovery, disaster recovery, and continuity of operations.
• Oversee and maintain automation scripts and infrastructure as code.

What You'll Need

• US citizenship required; Active Top Secret clearance with ability to obtain TS/SCI with Polygraph.
• Bachelor’s degree in a relevant field with 8-12 years of experience, or equivalent experience in lieu of degree.
• DoD 8570 IAT Level II or III certification (e.g., Security+ CE, CASP+, CISSP).
• Experience with Linux (Red Hat/CentOS) and Windows Server administration.
• Proficiency with virtualization platforms (VMware, KVM) and automation/scripting tools (Ansible, Bash, PowerShell).
• Familiarity with STIG compliance and supporting IC or DoD classified environments.

What's On Offer

• Opportunity to work on mission-critical systems supporting national security initiatives.
• Competitive compensation and comprehensive benefits package.
• A collaborative environment with opportunities for professional growth and development.
• Be part of a forward-thinking organisation that is redefining technological solutions.

Apply via Haystack today!