PROFESSIONAL SUMMARY:

A dynamic self - motivated Linux administrator with 6 years’ experience of deploying and managing Linux/Unix based infrastructures. Effectively performed administrative support and applied solution-based IT services including installing, configuring, monitoring, and troubleshooting for various Linux based servers. Strong working & managing skills of virtualization & VMware. Profound knowledge & experience of cloud computing such as AWS, and automation tools like Ansible, Bash scripting.

TECHNICAL SKILL:

Linux Operating Systems: RHEL 5/6/7, CentOS 6/7

Networking Skills: WAN/LAN, TCP/IP, Cisco, Iptables, DNS, Netgear Routers

Virtualization: Hypervisors- VMware Esxi/vSphere Management, VDI

Servers: Apache, HTTP, NFS, DNS, NTP, NIS, PXE, Repositories, FTP, Active Directory, SAN, NAS

Automation Tools: Automation- Ansible, YAML Playbooks, PxeBoot, BASH

Monitoring Tools: Nagios, BladeLogic, BMC Remedy, Splunk, Application Monitoring, Troubleshooting

Cloud Services: Amazon Web Services (AWS), Cloud Computing, EC2, IAM, S3, ELB, Glacier, Route 53

Integration Skills: Jenkins, CI/CD

PROFESSIONAL EXPERIENCE:

Confidential, NY

Linux System Administrator

Responsibilities:

• Effectively installed, configured, deployed & managed RHEL 5/6/7, Centos 6/7 servers.
• Deployed servers with Pxe Boot using Red Hat Kickstart file.
• Provisioned virtual machines through Vmware & constructed Esxi hosts 5.5, 6.0 & managed through Vcenter/Vsphere.
• Cloned VMs & took snapshots for recovery purposes.
• Migrated physical servers to Vms through different tools & commands.
• Created templates snapshots for restoration and backups.
• Configured managed & patched servers through Red Hat Satellite & Ansible.
• Experience Working with Ansible playbooks for application deployment, configuration management and system hardening.
• Automated tasks through writing ansible playbooks using handlers and ad hoc commands.
• Configured DHCP, DNS, FTP, NFS, Telnet, NIS, SSH, HTTPS, HTTP servers.
• Created Domain Controller and Managed User, groups & assigned permissions.
• Managed TCP/IP & UDP/IP Protocols & good understanding of OSI Models.
• Configured servers with different Raid levels 0,1,5,6 for fault tolerance & redundancy.
• Excellent experience in installing and managing YUM and RPM Packages.
• Strong working knowledge of storage technologies such as SAN or NAS.
• Remote administration of Linux servers using SSH & VNC Viewer.
• Archived backup and file/directory restoration by utilizing tar rsync, scp & gzip.
• Scheduled jobs & automated tasks through Cron & At.
• Upgraded packages & patched servers to remove vulnerabilities & for improved performance.
• Performed troubleshooting of various bottlenecks related to CPU and memory.
• Provided day to day troubleshooting support to resolve various tickets.
• Performed NIC bonding/teaming for redundancy & load balancing.
• Configured LVM, NFS & FTP on windows & Linux servers.
• Managed NIS domain by configuring servers and client roles.
• Documented troubleshooting guidelines, strategies for improvement of various tasks for productive & efficient performance.
• Created physical volumes, volume groups, logical volumes (LVM) and file systems to manage disk space.
• Patched servers using RedHat Satellite.
• Opened new tickets with different vendors to resolve queries & documentation.
• Automated day to day tasks through writing bash scripts.
• Monitored Linux servers through BMC Remedy.
• Efficiently applied leadership skills to ease disk management by portioning hard drives and creating LVM.
• Effectively performed file system management of ext3, ext4, xfs.
• Configured & Deployed cloud servers using EC2, VPC, IAM, and S3 bucket.
• Monitored Cloud Watch to manage AWS resources.
• Collaborated with the architecture review team to design and plan for Autoscaling & ELB to meet business requirements.
• Provided support to migrate data through Snowball.
• Archived Data on Glacier.
• Managed & Configured Route 53, SES & SNS Services.

Confidential, AR

Linux System Administrator

Responsibilities:

• Installed, configured, and updated RedHat and CentOS servers.
• Configured DHCP, NFS, NIS, HTTPD, & FTP on Linux servers.
• Created and managed virtual machines on VSphere client.
• Decommissioned physical and virtual servers as per SLA.
• Provided 24/7 support for business continuity during server related problems.
• Monitored system performance using Splunk.
• Monitored and managed systems by keeping them in compliance with company standards to achieve optimization.
• Configured RAID and LVM for disk management.
• Installed & upgraded packages through RPM & YUM.
• Managed & Configured SSH connections for keyless entries.
• Monitored and troubleshoot the environment for potential system issues.
• User account management through creating new Users, groups & assigned file permissions, user passwords.
• Managed TCP/IP network access.
• Provided support to manage VDI.
• Monitored the health of systems through different monitoring tools such as Bladelogic.
• Managed & administered networking devices such as routers and switches.
• ID Management & User administration in NIS domain.
• Managed processes by monitoring, managing, and maintaining instances of running applications.
• Transferred files/data by log into remote servers for support, maintenance & remote execution of commands using SSH keys.
• Monitored different logs & activity reports to maintain system performance.
• Adhered to the change management process for any planned activities.
• Worked with different vendors to order systems parts.
• Provided support to resolve issues from system not booting up to server being sluggish.
• Good knowledge of Microsoft Office.
• Provided support on weekends and odd hours to ensure no disruption of local and operational systems during scheduled maintenance and outages.