Senior Systems Administrator

Senior Systems Administrator | Earth City, MO, United States | Hybrid | $92,300.00 - $166,850.00

This employer is a technology leader serving government and commercial customers with innovative digital and mission solutions. They are seeking a Senior Systems Administrator to join their mission-critical IT operations team within the Intelligence Production Solutions Division. This role demands deep technical expertise and proactive leadership to manage, secure, and optimize high-performance systems supporting intelligence and geospatial 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 (VMware, KVM).
• Perform OS installation, configuration, hardening, and patching in compliance with security standards.
• Monitor and tune system performance, conduct root cause analysis, and resolve complex issues.
• Support backup/recovery strategies, disaster recovery plans, and continuity of operations.
• Oversee and maintain automation scripts and infrastructure as code (e.g., Ansible, PowerShell, Bash).

What You'll Need

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

What's On Offer

• Opportunity to work on mission-critical systems supporting national security initiatives.
• Competitive compensation with a comprehensive benefits package.
• Collaborative work environment with a focus on innovation and rapid pace.
• Involvement in system enhancements and modernization projects.

Apply via Haystack today!