Bhushan Nagale

Linux System Administrator with 3 years of experience in managing, securing, and optimizing RHEL 8/9 environments in 24x7 production infrastructure. Skilled in Linux administration, Ansible automation, patch management, performance tuning, storage administration, and kernel-level troubleshooting. Experienced in incident management, disaster recovery, and cloud infrastructure support using AWS and VMware technologies.

System Administrator - Tata Consultancy Services

(2024-01)

• Managed and maintained 50+ RHEL production servers in a 24x7 high-availability enterprise environment.
• Performed Linux administration activities including user management, service management using systemctl, filesystem management, incident management, cron scheduling, package management, and log analysis.
• Monitored infrastructure and analyzed system/application logs using Splunk for proactive incident detection and faster root cause analysis (RCA).
• Collaborated with application and network teams during critical production incidents and root cause analysis activities.
• Implemented and managed security tools including Antivirus (AV), EDR, and DAM solutions to improve compliance and endpoint protection.
• Configured and maintained DNS services to ensure reliable hostname resolution and network connectivity.
• Created and managed centralized RHEL YUM repositories for efficient package distribution and patch management.
• Administered LVM, including disk provisioning, filesystem expansion, volume resizing, and ACL permission management.
• Configured and troubleshot NFS mounts and managed ASM disks for storage availability and file-sharing operations.
• Collaborated with Oracle DBA teams in production environments, supporting Oracle RAC infrastructure, ASM disk management, SCAN/VIP networking concepts, and cluster-related troubleshooting activities.
• Performed Disk I/O analysis and Linux performance tuning using tools such as dmesg, iostat, vmstat, top, and sar to resolve latency and resource utilization issues.
• Managed VMware virtual machines using VMware vCenter, including VM monitoring, console access, troubleshooting, and operational support.
• Performed kernel-level troubleshooting for boot failures, system crashes, high CPU utilization, memory leaks, and I/O bottlenecks.
• Supported OS patching activities using BMC tools while ensuring compliance and minimizing production downtime.
• Worked on AWS cloud services including EC2 provisioning, EBS volume management, and cloud administration tasks.

Bachelor of Engineering - Computer Science - P R Pote Patil College of Engineering, Amravati (Maharashtra) (2019-07 - 2023-06)