SUMMARY:

• Systems Engineer with 8+ years of experience in maintaining, upgrading and administering 1000’s of servers on various platforms on Unix/Linux and Windows OS. Interested in deploying applications and maintaining the environment using virtualization and automation tools.
• Worked closely with Software development, application and database teams.
• Experience in installation, configuration, backup, recovery, maintenance, and support of RHEL, SUSE, CentOS Linux and AIX on Virtual(VMWare) and Physical (HP,Dell and IBM) environments.
• Experience in Linux - based Virtualization implementations such as VMWare and Xen.
• Extensive Knowledge in shell scripting. (Ksh, bash and sh).
• Working knowledge of EMC and Hitachi SAN infrastructure.
• Configuration of Hardware and Software RAID, disk replacement and File system recovery.
• Installed, Configured and maintained Redhat Satellite Server.
• Working knowledge on Oracle, SQL, MongoDB.
• Knowledge of Version control systems (GIT).
• Worked on installing Red Hat clusters for DB2 database servers.
• Strong understanding ofLAMPstack and support of web applications and supporting components such as apache/tomcat/varnish/memcache.
• Installed and configured performance monitoring tool Nagios.
• Redhat Satellite server 5.4 administration, for patching servers with Satellite server and maintaining configurations, provisioning of RHEL 5.x/6.x using Satellite.
• Experience in building servers for Linux using Kick start and Flash Archive for Solaris.
• Knowledge on RH Satellite 6 Provisioning and kickstart profiles.
• Applying Security patches on Redhat Linux machines on quarterly basis.
• Experience in Load Balancing, Monitoring and creating virtual servers for Development and Production on F5 LTM Load balancer devices for various web and application.
• Good experience in handling project using Agile methodologies.
• Participated in 24x7 on call rotation for production environment.
• Experience in using automation tools like Chef and also experience in automation using Shell, Python, Ruby, Perl scripting.
• Linux-based Virtualization implementations with VMware.
• Experience working with Sun Systems hardware running on Oracle Solaris.
• Monitoring system Access and servers by using tools like Nagios, Tivoli, and Concord.
• Workload Management (WLM) using cloning and clustering.
• Network Engineer on various platforms with knowledge in Cisco switches and router configs.
• Infoblox for DNS and DHCP migration.
• LVM maintenance and creation of file systems.
• Deployment and understanding of LDOMS (logical Domains) on Solaris 10.
• Installation and maintenance of application servers such as Apache tomcat and weblogic.
• Project management, and documentation.

TECHNICAL SKILLS:

Operating Systems: IBM AIX, HP-UX, Linux (Redhat Linux, Debian, Suse), Sun Solaris and Windows.

Cloud: Openstack, VMware, VMware vSphere 4.0/5.0/5.5, VMware ESX 3/3.5/4.0/4.1, ESXi 5.0/5.5

Automation: Chef, LAMP stack

Storage: iSCSI, NetApp, NFS, EMC, Qlogic

Scripting Languages: Ksh, Bash, Perl and Python.

Databases: MySQL, Oracle, MongoDB, wcm.

Monitoring: Nagios, Splunk, Veritas Netbackup

Security Tools: Wireshark, IPTables and Infoblox.

Networking: TCP/IP, NIM, NFS, NIS, DHCP, DNS, Infoblox, Cisco Routers/Switches and LAN.

Hardware: HP DLs (380, 560,580), IBM p6 595, RS/6000, p670, p690, p650, p630, RS/ p-Series SP2 Wide Node, HMC - Hardware Management Console (rack model), Sun M5000, T2000 servers with sun ZFS

PROFESSIONAL EXPERIENCE:

Confidential, Atlanta, GA

System Administrator

Responsibilities:

• Administration and maintenance of servers running on RedHat Enterprise Linux, Solaris and CentOS.
• Successfully implementing pre-migration and post migration activities.
• Installation of Linux Operating System using Kickstart and PXE boot Installation methods.
• Scheduling Cron Jobs to run on a regular basis to execute scripts and generate Reports.
• Worked on VCS Management and reviewing the cluster on Solaris Platform.
• Worked on DataBase ID change requests.
• Worked on upgrade activities for Cloudmark Gateway 4.4 and upgraded Workflows on Cloudmark.
• Worked on Cartridge upgrade on Cloudmark.
• Debugging mail issues and mail Management SMTP/IMAP and troubleshooting user issues in mail platform.
• Troubleshooting Migration of the mail users/accounts with in the MSS’s (Mail Storage Servers)
• Used Remedy Ticketing tool to handle Tier3 issues for mail customers.
• Worked on IP address categorization using RBL and Spamhaus Blockli.
• Migrated LDAP and directory-bound services from Open Directory to Active Directory.

Confidential, Phoenix, AZ

Linux System Administrator

Responsibilities:

• Implementing new HP blade enclosures and assisting in Onboard admin configuration.
• Management of Red Hat Linux user accounts, groups, directories, file permissions and sudo rules.
• Building virtual machines, creating templates, cloning and deploying virtual machines.
• Maintenance of the server farm, Performance tuning and capacity planning related to the Virtualized environment and monitoring performance activities.
• Disaster Recovery methods and procedure related to Virtualization Environments.
• Configured Redhat Linux servers for SPLUNK installation and worked on increasing the performance using disk striping and changing some VM parameters.
• Configured event and file system monitoring tools Envision, Oracle CCC, Snare across the Linux platform.
• Experience in configuring Chef in our LAB environment.
• Configuring and deploying patches, upgrades bug fixes on both physical and virtual Linux servers using Red hat satellite servers.
• Active Part of automation team for F5 in build and support configuration and troubleshooting issues.
• Performed automated installations of Operating Systems using Kick start for Linux.
• Worked on IP address management to support DNS/DHCP issues related to F5 VIPs, DNS failovers within servers and from one data center to other.
• Experience configuring and managing Puppet master server and also experience in updating and creating modules and pushing them to puppet clients.
• Installation and configuration of Nagios on servers used for Network and performance monitoring.

Confidential

Linux/UNIX Admin

Responsibilities:

• Installation and configuration of Red Hat Enterprise Linux (RHEL) 5x, 6x Servers on HP, Dell Hardware and VMware virtual environment.
• Worked with Opsware and Redhat Satellite server to deploy Linux servers.
• Worked on Hitachi, EMC SAN. Worked on Disk Array based Environments.
• Configured Dell DRAC and HP ILO for remote management
• Working with network team to setup Network to Linux Environment.
• Configure and Support FC-SAN environment and LUN provisioning.
• Configuring and maintaining virtual server environment using VMWARE ESX/ESXi, VSphere, VCenter.
• Experience in creating new virtual machine (VM) s via clone using existing VMs with guest operating system templates.
• Worked with backup team to backup Linux servers using Veritas Netbackup.
• Worked on updating kernel runtime parameters to increase the performance of servers.
• Worked closely with application and database (oracle and DB2) teams.
• Configured raw devices for database servers, installed and configured Oracle applications on RedHat servers.
• Writing BASH scripts to automate the operating system tasks.
• Installed, configured HP OpenView and Tivoli monitoring tool for enterprise monitoring.

Confidential

System Administrator

Responsibilities:

• Installation and configuration of Red Hat Enterprise Linux (RHEL) 5x, 6x Servers on HP, Dell Hardware and VMware virtual environment.
• Involved in supporting different HW ranging from Rack to Blade and also supported Vblock HW to run ESX environment
• Setup, Implementation, Configuration, documentation of Backup/Restore solutions for Disaster/Business Recovery of clients using TSM backup on UNIX, SUSE & Redhat Linux platforms.
• Installed and configured Netscape, Apache web servers and Samba Server.
• Installed and Configured WebSphere Application servers on Linux and AIX.
• Installation and configuration MySQL on Linux servers.
• Performed quarterly patching of Linux, AIX, Solaris and HPUX servers on regular schedule.
• Heavily utilize the LAMP stack (Linux, Apache, Mysql, PHP/Perl) to meet customer needs.
• Installation and configuration of Oracle 11g RAC on Red Hat Linux nodes.
• System performance monitoring and tuning.
• Experienced in developing custom scripts using Python, Perl & Shell (bash ksh) to automate jobs.
• Setting up the lab environment with Tomcat/Apache, configuring the setup with F5 virtual load balancer for customer application.
• Provide 24x7 on-call production support on rotation basis.

Confidential

Junior System Admin

Responsibilities:

• Installed and configured servers with Redhat 4, CentOS, Fedora.
• Kickstart installations and RPM package management.
• Provided day-to-day user administration like adding/deleting users and managing user’s queries.
• Configured http, CUPS, Samba, DHCP, NAT, Primary Secondary and cache-only DNS servers.
• File system management for application servers.
• Disk usage monitoring, administering and implementing disk quotas.
• Extensively worked in troubleshooting the hardware and software issues for Client servers.
• Configured multi-tier parent/child relationship squid web caching system.
• Extensively worked on software and hardware raid on Red Hat Linux machines.
• Extensive knowledge in configuring Samba and NFS for the sharing of files
• Involved in writing shell scripts for monitoring system usage, backup and recovery strategies, automation of jobs, adding new services to the system.
• Provided IT consulting services for clients’ data center operations