System Monitoring and Performance Management: Monitored system performance, resource utilization, and capacity planning. Identified and resolved performance issues such as CPU and memory bottlenecks.Security Management: Conducted regular security audits and vulnerability assessments. Implemented security measures to safeguard systems and data.System Maintenance: Planned, scheduled, and implemented system patches, updates, and upgrades in a timely manner.User Administration: Set up user accounts, permissions, and passwords. Managed user access and ensured secure authentication practices.Troubleshooting and Problem Solving: Addressed and resolved technical issues efficiently, minimizing downtime and maintaining system reliability.Package Management: Managed software packages and dependencies to ensure smooth system operations.Documentation and Reporting: Maintained detailed documentation of system configurations, procedures, and incident reports. Provided regular reports on system performance and security status.Operating Systems: Proficient in various UNIX-based operating systems such as Solaris, AIX.Storage Management: Skills in managing SAN/NAS storage solutions and configuring RAID arrays for data redundancy and performanceService Management: Knowledge of systemd and init scripts for managing system services and ensuring they start correctly at boot.Incident Management: Capable of managing incidents effectively, performing root cause analysis, and implementing corre.Monitoring and Alerting: Setting up and managing monitoring and alerting systems to proactively address potential issues.