Senior Systems Administrator

Lead the administration of Red Hat Enterprise Linux systems and Oracle-based infrastructure, including Exadata and ZFS storage. Perform system patching, backup/recovery, and performance tuning to maintain high availability and security. Monitor system logs, metrics, and AI/ML-assisted tools to identify performance trends and prevent downtime. Support Agile sustainment workflows, including Kanban boards and sprint planning within SAFe frameworks. Coordinate with cybersecurity, DevSecOps, engineering, and hosting teams to resolve complex technical issues. Manage infrastructure documentation, SOPs, and configuration baselines in compliance with DoD RMF and STIG standards. Support disaster recovery (DR), continuity of operations (COOP), and system obsolescence planning. Guide and mentor junior team members while ensuring technical quality and consistency across operations. Contribute to automation initiatives using tools like Ansible, Terraform, Docker, and Kubernetes. Support integration of Oracle EBS, WebLogic, and SOA Suite within hybrid or cloud-based environments (e.g., OCI, AWS GovCloud).