Senior Systems Administrator

Responsibilities Support the National Programs Intelligence Systems & Application Operating Unit. Perform installation, configuration, and maintenance of Linux servers, virtual servers, and application software upgrades. Operations and Maintenance tasks, maintaining operational baselines, and supporting application O&M activities including patching, application monitoring, and customer support. Troubleshoot network and application performance issues and recommend appropriate action. Work closely with project team members, product subject matter experts, end users, and software engineers to ensure applications remain operational. Develop tools to assist in systems management, ensure application documentation is maintained, and perform daily application backups. Requirements BA/BS degree with 5+ years of relevant experience; or Masters degree with 3+ years of experience. Proven experience in system administration, specifically with Linux, including RHEL and Ubuntu, and UNIX in classified environments. Some Windows server administration experience would be good to have. Hands‑on experience with Oracle Database installation, maintenance, and troubleshooting. Experience managing both virtual and physical servers. Experience performing system monitoring. Experience with backup management. Experience implementing performance optimizations. Currently valid DoD 8570 certification such as Security+ CE, CASP, CISSP, or similar security certification. Core Competencies Demonstrates expertise in Linux system administration, including RHEL and Ubuntu, with a focus on operational maintenance, performance optimization, and application support in classified environments. Proficient in managing both virtual and physical servers, ensuring system reliability and security. #J-18808-Ljbffr