Headline

Linux & AWS Administrator | 4.5+ Years Experience | RHEL | AWS EC2, EBS, VPC, IAM, S3 | LVM | VMware | Production Support

About

Linux & AWS Administrator with 4.5+ years of experience in managing, monitoring, and supporting Linux servers in enterprise production environments. Experienced in Red Hat Enterprise Linux (RHEL), server administration, system troubleshooting, performance tuning, patch management, user administration, storage management, backup and recovery, and incident resolution. Hands-on experience with AWS services including EC2, EBS, VPC, IAM, S3, Elastic Load Balancing, Auto Scaling, and CloudWatch. Skilled in server provisioning, system upgrades, log analysis, LVM administration, service management, and infrastructure support. Strong knowledge of Linux operating systems, VMware environments, AWS cloud infrastructure, and ITIL-based support processes. Proven ability to maintain high system availability, troubleshoot critical issues, and support business-critical applications in 24x7 production environments. Currently working as a Unix Administrator, focusing on Linux system administration, cloud operations, infrastructure support, and ensuring the reliability, security, and performance of enterprise systems. Core Skills: Linux Administration | RHEL | AWS Cloud | EC2 | EBS | VPC | IAM | S3 | Auto Scaling | Load Balancer | LVM | VMware | Shell Scripting | User Administration | Performance Tuning | Monitoring & Troubleshooting

Location

Nagercoil

AI stack

claude

gemini

openai

Work experience

Linux System Administrator at Happiest Minds Technologies, Jan 2025 - Present · 1 yr 9 mos, Managing Linux production servers and supporting enterprise infrastructure environments. Handling server monitoring, troubleshooting, patching, and operational support activities. Worked on customized sudo access implementation for backup and patching teams. Assisting in HA cluster support, server migration, and infrastructure maintenance activities. Supporting cloud and Linux-related operational tasks in production environments.

AWS Administrator at Happiest Minds Technologies, Jan 2025 - Present · 1 yr 9 mos, Administer heterogeneous Linux production servers distributed across critical Production, UAT, and Disaster Recovery environments, consistently achieving 99.9% system availability metrics. Direct and optimize 300+ Linux physical/virtual servers alongside 100+ AWS EC2 instances, 200+ EBS block storage configurations, and 50+ Amazon S3 data buckets. Perform highly controlled RHEL operating system patching, critical security updates, and large-scale major OS upgrades using Leapp, successfully completing over 50+ upgrades with minimal down-time thresholds. Execute rigorous monthly patch management distributions for 500+ corporate Linux servers, achieving an optimal 98% SLA compliance metric. Manage 100TB+ enterprise-tier SAN Storage configurations including logical volume management (LVM), Multipath paths, Oracle ASM disk storage mappings, and dynamic multi-file system expansions. Maintain high-availability infrastructure environments by administering Pacemaker and Corosync cluster platforms to protect continuous application operations. Provision, secure, and harden newly deployed Linux instances, overseeing complete lifecycle tasks including kernel tuning, enterprise package updates, and system access permission frameworks. Execute baseline firmware enhancements, hardware BIOS calibrations, RAID controller repairs, and network interface card (NIC) upgrades on physical Dell server hardware systems. Diagnose complex server breakdowns spanning system boot failures, kernel panics, multi-disk array errors, and networking performance bottlenecks. Track infrastructure alerts through enterprise tools including Splunk, SolarWinds, ServiceNow, and CloudWatch metrics to resolve over 95% of incoming incidents within corporate deadlines. Build automated Shell scripts designed for server health diagnostics, logging workflows, and standard maintenance tasks to minimize operational manual processes by 30%.

Unix System Engineer at Happiest Minds Technologies, Sep 2021 - Present · 5 yrs 1 mo, Bangalore Urban, Karnataka, India

Linux System Admin at Happiest minds Technologies via (Team lease services Ltd) Bengaluru, Aug 2021 - Present · 5 yrs 2 mos, Worked as Linux System Admin at Happiest minds Technologies via (Team lease services Ltd) Bengaluru. Operating system : Windows 7 and Linux. Tools : MS-office,vm, splunk, zenos, aws console, dell & HPE consol,serviceNow GIT & GIThub

Application servers at Happiest minds Technologies via (Team lease services Ltd) Bengaluru, Oct 2021 - Oct 2024 · 3 yrs 1 mo, Major OS upgradation RHEL 7.X to RHEL 8.8 Physical to virtual conversion Created separate group for Back up and Patching teams with customized sudo access. Dell firmware upgrade Server Retirement Cluster build (HA) Teaming

Linux System Administrator at TeamLease Services Limited, Aug 2021 - Dec 2024 · 3 yrs 5 mos, Managed Linux servers across enterprise environments with focus on uptime and stability. Performed major OS upgrades from RHEL 7.x to RHEL 8.x for application servers. Handled server administration activities including user management, filesystem management, and LVM tasks. Worked on Dell firmware upgrades, server retirement, and infrastructure support. Provided support for backup, monitoring, patching, and troubleshooting activities.

Education

Bachelor of Engineering, Electrical, Electronics and Communications Engineering, Ponjesly College of Engineering

B.E, ECE, Ponjesly College of engineering and technology