Linux - Red Hat (RHEL) Systems Administrator

ResponsibilitiesPeraton is seeking a Mid-Level Infrastructure Systems Administrator in our Chantilly, VA office in support of our Department of Defense (DoD) community customer as part of a highly talented, highly motivated and high-performing team. As part of the Infrastructure as a Service (IaaS) Tier 3 team you will support an exciting program which involves design, development, test, and deployment of a broad and complex system in an Agile construct to contribute to mission success for a variety of stakeholders. Join us and be part of the next generation of innovators as we blaze a trail forward for our profession and company. What you'll do: Support our cloud-based classified environment, ensuring the uptime of our multi-tenant, multi-level infrastructure Perform daily system monitoring and monthly patching as part of the Operations and Maintenance (O&M) team Manage operating system configurations, system documentation, performance tuning, software installations and updates, system hardening, and storage allocation Help monitor and maintain mission-critical, highly available, high-performance networked systems in a team-oriented environment Work closely with other engineering teams to improve our platforms and eliminate complexity from architecture and processes Monitor and address tenant discrepancy reports pushed to Tier 3 Monitor and manage system resources to maintain efficiency Provide Tier 3 development support for problem identification, diagnosis, and resolution QualificationsRequired qualifications: This position requires the candidate to possess a minimum of Top-Secret clearance with the ability to obtain TS/SCI. The candidate must maintain the clearance. Bachelor’s degree in a field of study applicable to the position with 5+ years of relevant experience. 4 years of relevant experience may be considered in lieu of degree. A minimum of 5 years of experience in a previous System Administration role:Ability to express yourself confidently, concisely, and accurately through written and oral communications Excellent interpersonal skills and the ability to collaborate effectively with management, the customer, and tenants across DoD Detail/ process oriented, can multi-task, and the ability to work with minimal supervision Meet DoD 8140 foundational qualifications for the work role of System Administrator at an Intermediate or Advanced proficiency levelExperience in system installation, patching and testing, and system configuration of networked services, file systems, basic scripting and authentication experience Operating System administration skills for Red Hat Enterprise Linux 8.x and later to include building systems up from bare metal, performing software package installation, operating system and application troubleshooting, and implementing security hardening Apply patches, updates, and hotfixes using Red Hat Satellite, YUM, or DNF Experience ensuring consistent software versions across environments and systems are current Experience diagnosing / resolving system issues, analyze system logs using journalctl, dmesg, or /var/log Experience collaborating with Red Hat support (or other similar vendors) for more complex issues Direct experience working in Windows and/or Linux operating systems Maintain detailed system documentation in Confluence, Git or other similar tools Perform and/or analyze regular vulnerability scans and address findings Desired Qualifications: Experience with virtualization/cloud-based technologies (e.g. OpenStack, Citrix XenServer Red Hat Enterprise Virtualization, and/or VMWare), Docker Containers, Ansible, and/or Heat templates Familiarity with Red Hat tools: RH Virtualization, RH Satellite, RH OpenStack, RH OpenShift Configure Red Hat High Availability clusters for critical services Manage load balancing and failover systems Experience with Windows A/D, GPO and system configuration/administrationBenefits:Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan#MetroplexPeraton OverviewPeraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.Target Salary Range$104,000 - $166,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.EEOEEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.Job SummaryRequisition ID: 2026-171663Position Category: Information TechnologyClearance: Top Secret/SCI