Overview Peraton 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. Visitperaton.comto learn how we’re keeping people around the world safe and secure. Responsibilities Peraton is seeking to hire aSenior Systems Administration Support (UNIX/Linux OS)for the Regional Cyber Center-Europe program.Location: On-site, Wiesbaden, GermanyResponsibilities:Manage and maintain RedHat Enterprise Linux (RHEL) server infrastructure across multiple RCC-E enclaves, performing system builds, configuration management, performance tuning, and lifecycle administration in support of enterprise cyber defense servicesConfigure and sustain defensive cyber service platforms hosted on Linux infrastructure, including network sensors, log aggregation systems, and security analytics tools supporting RCC-E’s CSSP-D missionAdminister identity and authentication management systems using RedHat Identity Management (IdM) and Keycloak, managing user accounts, Kerberos/LDAP integration, and role-based access controls across the enterpriseImplement and maintain STIG compliance and RMF documentation for all managed UNIX/Linux systems, conducting regular SCAP scans, remediating findings, and supporting ATO maintenance activities in coordination with the ISSM/ISSODeploy and manage containerized applications using Podman and Kubernetes/OpenShift, supporting the development and operations of cyber tools and enterprise services in a hardened, DoD-compliant container environmentSupport data center operations including server rack management, storage integration, backup/recovery procedures, and coordination with facilities personnel to ensure physical and environmental security of hosted systems Qualifications Required:Bachelor’s degree (STEM/Business Admin) and 8 years of relevant, specialized experience; Associate’s degree and 10 years, or 12 years of experience in lieu of the bachelors degreeMust meet TESA QualificationDoW 8140 - IT (System Administrator) - AdvancedCertifications - must hold one active certification (one of the following):UNIX Certified Administrator; ORRHCE (Red Hat Certified Engineer); ORRHCSA (Red Hat Certified System Administrator); ORRHCA (Red Hat Certified Architect)Demonstrated 4+ years of UNIX/RedHat Server OS experienceDemonstrated 2+ years of experience with HP-UX, Solaris, or RedHat Linux; 2 years with U.S. military C2 or commercial LAN/WAN systemsU.S. citizenship requiredActive DoW Secret security clearancePreferred:Proficiency with Bash and Python scripting for system automation, configuration management, and security compliance tasksExperience with SaltStack or Ansible for configuration management and automated STIG remediation at scaleFamiliarity with Network IDS platforms (Suricata, Snort, Zeek) and GigaMon packet broker administrationExperience with GitLab for source code management, CI/CD pipeline development, and infrastructure-as-code workflowsKnowledge of Podman and Kubernetes/OpenShift container orchestration in hardened, air-gapped environmentsExperience with RedHat IdM and Keycloak for enterprise identity federation and SSO integrationFamiliarity with VMware vSphere administration for Linux VM management and resource optimizationExperience with network IDS sensor tuning, signature management, and integration with SIEM platforms