Krishna Babu K

Administered and maintained Linux (RHEL/Ubuntu) and Windows Server environments, optimizing system security, availability, and scalability across large-scale enterprise operations.

Managed Cisco UCS C-Series and B-Series servers, configured RAID, and integrated enterprise storage solutions (NFS, iSCSI) to ensure high data integrity and accessibility.

Deployed and maintained VMware vSphere (7.x-8.x) clusters, ESXi hosts, vCenter, and OpenNebula virtualized environments, optimizing infrastructure performance and resource utilization.

Collaborated with network teams to configure Cisco Catalyst and Nexus switches (IOS, NXOS, IOS-XE), troubleshooting connectivity issues and optimizing network performance in lab and production environments.

Implemented and maintained comprehensive server health monitoring systems using Nagios and IPAM tools, enabling proactive incident prevention and significantly reducing system downtime.

Led critical incident resolution efforts and coordinated patch management cycles, ensuring 100% system adherence to security compliance requirements and minimizing vulnerability exposure.

Installed, configured, and provided comprehensive support for Windows and Linux servers in development and lab environments, ensuring stable and efficient operations.

Maintained Cisco UCS hardware, performed critical firmware updates, and configured network modules to enhance system reliability and performance.

Assisted in VMware vSphere administration, including efficient VM provisioning, snapshot management, and performance tuning for optimized virtual infrastructure.

Configured and continuously monitored NFS/iSCSI storage solutions, ensuring high data availability and optimizing performance for critical applications.

Collaborated with security teams to promptly remediate system vulnerabilities and apply critical patches, significantly improving overall security posture.

Leveraged IPAM and port scanning tools to efficiently manage IP allocations and proactively detect network anomalies, ensuring robust network hygiene.