**Description** Team SAIC is seeking an experienced **Red Hat Senior Linux Administrator** to operate and maintain the Linux operating systems within our environment. This position is based out of the **Pentagon in Arlington, VA.** **Shift Schedule:** Monday-Friday, 6:00 AM to 6:00 PM core hours with occasional after-hours onsite work to support a NIPR and SIPR environment. **POSITION OVERVIEW:** + Provide effective provisioning, installation/configuration, operation, and maintenance of production Linux Servers in a VMWare Virtualized Environment. + Play a key role in troubleshooting server performance, ensuring security compliance, and addressing system availability issues. + Collaborate with other IT teams to ensure infrastructure solutions meet operational requirements and contribute to the overall efficiency and security of the organization's systems. + Participate in system upgrades, migrations, and new deployments of Linux-based infrastructure. + Ensure problems are tracked, escalated, and resolved at the appropriate priority level. + Responsible for daily system monitoring, security, server health, resources and log management of all Linux systems. + Experience with applying patches and building custom kernels as required to implement functionality or address security concerns. + Maintain and update Server STIG (Security Technical Implementation Guide) requirements to comply with DISA standards. + Administer Satellite Server, including managing content views, lifecycle environments, host provisioning, and deploying software and patches to RHEL systems. + Develop and implement automation scripts and Ansible playbooks for streamlined infrastructure provisioning, configuration management, and repetitive tasks. **Qualifications** **REQUIRED QUALIFICATIONS:** + Active DOD Top Secret clearance. + US citizenship. + DoD 8570.01-M/DoD 8140 Certification IAW established mandate prior to start of work - IAT Level II required (CCNA Security, CySA+, GICSP, GSEC, Security+ CE, SSCP). + Bachelor’s degree in computer science, Information Systems, or related field or equivalent work experience. + Minimum of five years of relevant work experience. **DESIRED QUALIFICATIONS:** + Knowledge of Linux firewalls, Linux RPMs, networking configuration, and DNS. + Prior experience of working in a multi-tenant environment. REQNUMBER: 2510581 SAIC is a premier technology integrator, solving our nation's most complex modernization and systems engineering challenges across the defense, space, federal civilian, and intelligence markets. Our robust portfolio of offerings includes high-end solutions in systems engineering and integration; enterprise IT, including cloud services; cyber; software; advanced analytics and simulation; and training. We are a team of 23,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $6.5 billion. For more information, visit saic.com. For information on the benefits SAIC offers, see Working at SAIC. EOE AA M/F/Vet/Disability