Linux Systems Administrator

Job DescriptionDuties & Responsibilities:RHEL Server Administration:Deploy, configure, and maintain Red Hat Enterprise Linux (RHEL) servers in on-prem and cloud environments.Secure, optimize, and troubleshoot Linux systems to ensure uptime and reliability.Manage user access, system permissions, and software updates.Containerization & Kubernetes:Deploy and manage Docker containers for internal services and tools.Maintain and expand Kubernetes (RKE2) clusters for user-deployed applications and enterprise solutions.Implement and optimize container orchestration using Kubernetes or Docker Swarm.Infrastructure as Code & Automation:Implement Infrastructure as Code (IaC) solutions using Terraform and Ansible.Develop and manage CI/CD pipelines using GitLab CI/CD.Automate deployments, configuration management, and monitoring setup.Monitoring & Logging:Develop and maintain Grafana dashboards for real-time system monitoring.Implement centralized logging and monitoring using Telegraf, InfluxDB, and Prometheus.Troubleshoot system performance issues using logs and metrics.Cloud & Virtualization:Manage and maintain Linux-based cloud instances across AWS and other cloud platforms.Assist in cloud migrations and optimizing cloud-based services.Support virtualization efforts across a mix of physical and virtual Linux systems.Mission-Critical System Support:Maintain secure FTP servers for mission data access and downloads.Provide support for user-accessible desktop environments via remote desktop solutions.Manage physical Linux servers, including a new Qube rendering farm supervisor server.Collaboration & Knowledge Sharing:Work with leadership and cross-functional teams to scale and improve Linux-based infrastructure.Provide technical mentorship and training to junior administrators or teammates.Contribute to documentation and standard operating procedures (SOPs).Required SkillsExperience supporting high-availability Kubernetes clusters for GEOINT or enterprise environments.Familiarity with GPU-accelerated workloads in a mixed physical/virtual environment.Experience managing enterprise-scale logging and monitoring solutions.Understanding of cloud security best practices and Linux hardening techniques.Prior experience with Qube rendering farms or similar high-performance compute environments.Ability to work independently and drive infrastructure projects forward.Desired SkillsExperience supporting high-availability Kubernetes clusters for GEOINT or enterprise environments.Familiarity with GPU-accelerated workloads in a mixed physical/virtual environment.Experience managing enterprise-scale logging and monitoring solutions.Understanding of cloud security best practices and Linux hardening techniques.Prior experience with Qube rendering farms or similar high-performance compute environments.Ability to work independently and drive infrastructure projects forward.