Senior Systems Administrator

Senior Systems Administrator | Saint Louis, MO, United States | Hybrid | $92,300.00 - $166,850.00

This employer is a respected leader in the technology and government services sector, known for its innovative solutions and commitment to national security missions. They are seeking a skilled Senior Systems Administrator to join a dynamic team focused on optimizing mission-critical infrastructure for intelligence initiatives. This role offers a unique opportunity to work on advanced projects within a secure, collaborative environment.

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 security standards.
• Monitor 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 solutions.

What You'll Need

• Bachelor’s degree in a relevant field or equivalent years of experience.
• Active Top Secret clearance 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 (RHEL/CentOS) and Windows Server administration.
• Proficiency with virtualization platforms (VMware, KVM) and automation tools (Ansible, Bash, PowerShell).
• Familiarity with STIG compliance, system hardening, and RMF processes.

What's On Offer

• Competitive salary range.
• Comprehensive health and wellness programs.
• Generous paid leave and retirement benefits.
• Opportunities for professional growth and development within a mission-focused organization.

Apply via Haystack today!