Chaithrika Poojary

Determined Linux System Administrator with 4 years of experience working with LINUX/AIX systems. Proven strengths in System maintenance, technical analysis, Upgrades and undertaking cost-effective project. A proactive team player with strong work ethics, collaboration abilities, and independent decision-making skills.

Linux System Administrator - DXC Technology - Bangalore

(2022-07)

Working on healthcare sector projects (2500+ servers)

• Administering and maintaining RHEL 6/7/8/9 and AIX servers.
• Monitoring Servers using Dynatrace and Zabbix tools - Identifying and addressing potential issues before they impact operations.
• Resolving server performance issues, network connectivity problems, and host unavailability, minimizing downtime and ensuring business continuity.
• Performing LVM activities like LVM Setup and configuration, File System creation, extending, reducing as per the requirement.
• Extensive hands-on experience in VMware administration, including managing VM snapshots for backup and recovery, allocating and optimizing VM resources (CPU, memory, disk, and network) to enhance performance, and executing VM storage migrations to ensure efficient utilization of storage infrastructure while minimizing downtime.
• Performing upgrades including In-place Upgrade, HPE Synergy firmware Upgrade, Dell firmware Upgrade, RHEV migration, Vulnerability patching, Imperva monitoring agent Upgrade, AIX TL Upgrade, OS Upgrades.
• Troubleshooting hardware issues like Faulty disks, Faulty drive, SAS Adapter failure, DIMM failures, System Health critical issues related to IBM, DELL, and HP servers.
• Performed server re-IP activities during network changes/migrations.
• Conducting root cause analysis (RCA) to investigate server failures, feature unavailability, implementing corrective and preventive actions proactively.
• Knowledge sharing between the team and subordinates.
• Proactively led and collaborated with the business unit to successfully upgrade RHEL 7 servers to RHEL 8, eliminating the need for RHEL 7 license extensions and ensuring improved performance, security, and compliance, resulting in a positive revenue impact.

B. Tech - Civil Engineering - N.M.A.M Institute of Technology, NITTE, Karkala (2022)