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Linux System Administrator, Senior

Resource Management Concepts, Inc. (RMC) is dedicated to delivering innovative management and technology solutions to both government and commercial clients, focusing on the protection and preservation of people and the environment across the United States. Position: Senior Linux Administrator Location: Hybrid (Crane, IN) RMC is seeking an experienced Senior Linux System Administrator to support and manage critical server infrastructure for a government client in Crane, Indiana. This essential hybrid role is responsible for the comprehensive administration, maintenance, and troubleshooting of enterprise Linux-based IT systems. The position emphasizes expertise in virtualization, networking, and integration while supporting individual and team initiatives to ensure reliable and secure operations. Key Responsibilities Administer, configure, and troubleshoot Red Hat Enterprise Linux (RHEL) 8+ environments. Manage and maintain databases including Microsoft SQL, PostgreSQL, and SQLite. Oversee and maintain Splunk systems deployed on Red Hat platforms. Support Kubernetes (K3s) clusters in both production and testing settings. Administer and optimize vulnerability management tools such as Tenable.sc, Nessus, or ACAS. Provide virtualization support for VMware and Nutanix AOS/AHV. Ensure consistent and reliable LAN/WAN network performance. Diagnose and resolve hardware, software, and infrastructure issues. Enforce DISA STIG and RMF cybersecurity compliance. Monitor system health, maintain logs, and produce operational reports. Collaborate efficiently both independently and as a member of cross-functional technical teams to meet project goals. Requirements High School Diploma/GED is required. A Bachelor’s degree in an Information Technology field is preferred. Minimum of 5 years’ experience in Linux system administration, ideally with Red Hat. Proficiency in SQL Server Management Studio, Microsoft SQL, PostgreSQL, and SQLite databases. Demonstrated experience managing virtualized and physical networking environments. Practical experience with Tenable.sc, Nessus, or other vulnerability assessment tools. Strong background in VMware and Nutanix environments. Familiarity with Kubernetes (K3s) and container orchestration. Advanced troubleshooting skills across hardware, software, and network layers. Excellent written and verbal communication skills. An Active DoD Secret clearance is required to start. Must have DoD 8570/DoN 5239 IAT Level II certification (Security + CE). Preferred Qualifications Proficiency in Bash and PowerShell scripting. Understanding of DISA STIG and the Risk Management Framework (RMF). A collaborative mindset and initiative to further secure and innovate enterprise Linux environments. Benefits At RMC, we're committed to your career growth! RMC differentiates itself from other firms through its investment in our employees. We invest our resources to train, certify, educate, and build our employees. RMC can offer you a great place to work with a small company feel and give you the experience, tuition assistance, and certifications that will take your career to the next level. This also includes a competitive paid vacation package with 11 paid federal holidays. Additionally, we also offer high-quality, low-deductible healthcare plans, pet insurance, and a competitive 401K package. Salary at RMC is determined by various factors, including but not limited to location, a candidate's specific combination of education, knowledge, skills, competencies, and experience, as well as contract-specific requirements. The current salary range for this position will be $80,000 to $110,000 (annually). #LI-LL1 #IND123

Crane, IN 47522, USA

$80,000-110,000/year