Garima C

System Engineer (UNIX/Linux)

Reliance Jio Infocomm • Vollzeit

Feb 2016 - Apr 2021 • 5 yrs 2 mos

Client: Telco (JIO) Performed Linux L2 system administration across a large-scale enterprise environment, including development, staging, and production servers. Investigated and logged hardware failure incidents, coordinated with vendors for replacements, and tracked resolution timelines. Carried out routine and emergency firmware upgrades on physical and virtual infrastructure to ensure system security and compatibility. Analysed and resolved escalated service requests and incidents involving disk errors, boot issues, service failures, and OS-level crashes. Implemented OS patching cycles and participated in kernel upgrades to enhance performance and maintain compliance. Supported LVM management tasks including volume creation, extension, and recovery in Linux systems. Configured and managed network interfaces, DNS, NTP, and system firewall settings to ensure connectivity and compliance with security baselines. Worked on root cause analysis (RCA) for recurring issues and created permanent resolution workflows. Managed system backups and disaster recovery (DR) simulations, ensuring data availability and integrity. Collaborated with database and application teams to tune OS parameters and optimize performance. Maintained detailed documentation of incident handling, SOPs, change records, and asset inventory. Monitored system health and resource usage using Zabbix and generated performance reports for capacity planning.