• Administer and maintain Linux servers supporting data platforms, applications, and shared services. • Perform system configuration, patching, monitoring, and performance tuning across environments. • Manage user access, permissions, and system hardening aligned with security best practices. • Support containerized and cloud-based Linux workloads. • Troubleshoot infrastructure issues impacting applications, databases, or analytics systems. • Automate routine administrative tasks using scripting and configuration tools. • Maintain system documentation, operational runbooks, and configuration records. • Collaborate with DevOps, data engineering, and security teams to support secure delivery and platform reliability. • Support vulnerability remediation, compliance checks, and audit readiness activities.