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Senior Systems Administration Support Specialist (UNIX/Linux OS)

On-site Full-time

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Experience Level

Senior

Qualifications

Minimum Requirements:Active in-scope Secret clearance with T5.BA/BS degree in Engineering, Computer Science, Science, Business Administration, or Mathematics plus three (3) years of specialized experience OR Associate’s degree plus seven (7) years of specialized experience OR a major professional certification plus seven (7) years of specialized experience OR eleven (11) years of specialized experience. Possession of at least one of the following certifications: UNIX Certified Administrator, Red Hat Certified Engineer (RHCE), Red Hat Certified System Administrator (RHCSA), or Red Hat Certified Architect (RHCA). Additional Experience:Minimum of four (4) years of experience in using and maintaining UNIX or Red Hat systems on a server-based OS. Minimum of two (2) years of experience with HP-UX, Solaris, or Red Hat Linux-based applications. Minimum of two (2) years of direct experience with U. S. military command and control systems.

About the job

**This position is contingent upon contract award**

SOSi is actively searching for a Senior Systems Administration Support Specialist (UNIX/Linux OS) to join our team in Wiesbaden, Germany. The ideal candidate will bring extensive expertise in the administration, maintenance, and optimization of UNIX and Red Hat-based server environments. This position requires proficiency in managing intricate open-source and proprietary architectures, supervising specialized Linux applications, and ensuring the stability of critical command and control or commercial communication systems to meet theater-level mission requirements.

Key Responsibilities:

  • Deliver senior-level technical support for the daily operations, maintenance, and troubleshooting of UNIX and Red Hat Enterprise Linux (RHEL) server-based operating systems.
  • Oversee the configuration and performance of UNIX/Linux-based applications, including HP-UX, Solaris, or Red Hat-specific environments.
  • Manage resource allocation, kernel tuning, and system performance for UNIX-based architectures to ensure high availability and resilient performance.
  • Lead the deployment and maintenance of Linux-based server workloads, ensuring seamless integration with enterprise storage and network resources.
  • Guarantee the availability and integrity of the Department of Defense Information Network (DoDIN) by enforcing strict STIG compliance, security patching, and vulnerability remediation for all UNIX/Linux assets.
  • Provide situational assessments and utilization metrics to address emerging UNIX/Linux system requirements and theater-wide processing initiatives.

About SOS International LLC

Founded in 1989, SOS International LLC (SOSi) stands as one of the largest private, founder-owned technology and services integrators in the defense and government services sector. We are committed to delivering customized solutions, proven leadership, and reliable results to support national security missions globally.

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