SUMMARY

• Around 7 Years of Experience in UNIX/LINUX Systems and Network administration for VMware ESX 4.x/5.x, Windows 2008/2012, Sun Solaris 9/10/11, Linux RedHat (RHEL 4, 5, 6), CentOS, SUSE, Debian, OEL & HP - UX 10.x, 11.x.
• Involved in supporting ESX cluster environments managing 400+ VM’s running Linux and Windows environments.
• Involved in upgrading VMware ESX servers and managed VM’s and performed VMotion activities.
• Installed, configured and maintained UNIX/LINUX servers in an enterprise environment (Linux, Solaris, HP-UX) with SAN/NAS infrastructure across multiple sites for business critical applications.
• Experience in supporting Java based applications like JBoss, Weblogic & Wesphere and involved in J2EEapplication deployment activities.
• Experience in supporting middle ware environments like Apache/Tomcast, JBoss and Weblogic running on Redhat Linux and Solaris OE.
• Experience supporting Puppet environment with 500+ servers and involved in developing manifests.
• Configuring and maintaining virtual server environment using VMWARE ESX/GSX, VSphere, VCenter.
• Volume and Filesystem management using Veritas Volume Manager (VxVM) and Veritas Filesystem (Veritas Storage Foundation).
• Clustering solutions for High Availability using tools such as Veritas Cluster Server (VCS), RedHat HA (RHCS), and MSCS.
• Good knowledge of RAID groups and setting up NFS, CIFS and iSCSI protocols in SAN/NAS environment on HPUX 11.23/11.31 and Redhat LINUX.
• Performed patching of Linux & Solaris servers on regular schedule. Involved in up Network/SAN installations using kickstart and jumpstart.
• Involved in migration set up for UNIX/Linux server and SAN storage between data centers and also application migration and testing. This included SAN/Application migration and testing various functionalities of key applications.
• Experience in Server Configuration and Implementation SAN Migrations on SAN Storage such as IBM DS8000/4000, IBM XIV, EMC Clariion,VNX, VMAX, HP EVA & NAS like NetApp and EMC.
• Setting up NIS/NFS on RedHat servers, setting up JBOSS cluster and oracle 10g cluster, configuring load-balancing on apache, Redhat Linux 4.x/5.x/6.x.
• Installation/configuration for Oracle, Sybase, SQL Server, Informix Databases.
• Setup, Implementation, Configuration of Backup/Restore solutions for Disaster/Business Recovery of clients using OMNIBACK on UNIX and LINUX platform.

TECHNICAL SKILLS

Operating Systems: Unix - ------->Sun Solaris v 9, 10, HP-UX v 10.2, 11.31, 11i v3 Linux------->Redhat EL v 4.x, 5.x, 6.x, 7, SUSE v9, 10.0, 11.x, Ubuntu v 6.10, 9.10. Windows-->Win NT/98/XP/Vista/7/Server 2003/2008/2012 VMware ESX 3.x/4.x/5.x

Server Management: SUN Solstice Disk & Admin Suites, VxVM, SMC, HP Open View, Network Node Manager, Compaq Insight Server Manager & Intel LAN Desk Manager, Puppet, Nagios, BMC Patrol and Predict, Amazon EC2 and S3, Icinga.

Languages: C, C++, XML, PHP, PL/SQL, Shell Scripting - ksh, Bash, Java and csh, Perl

Data Base Servers: Oracle 8i, 9.2.x on Solaris and Red Hat Linux and Win NT/2000, MySQL 7, 2000 on Win NT/2000.

Networking Protocols: SNMP, SMTP, TCP/IP, IPX/SPX, NetBEUI, OSPF, BGP, IGRP, EIGRP, PPP, SLIP, UUCP, X.25, LAN, WAN, PCNFS, ARP/RARP, FTP/TFTP, RIP, DHCP, DNS, NIS, NIS+, Automounter.

Desktop Applications: Acrobat, Paint Shop Pro, MS Office, Novell Group Wise, Corel Perfect Office, MS Works, Open Office, Dreamweaver, FrontPage, and many others.

Internet & WWW: Apache Web Server 1.2, 1.3.x, 2.x on Windows, Linux and Solaris, IIS 4.0, 5.0, 6.0, iPlanet 6.x, WebLogic 6.x, 7.x, 8.x, 9, 10, JBoss 4.2.x, Sendmail, Postfix, Mozilla, Webmin, Weblogic, JBoss and Apache Tomcat.

Security Hardware/Software: Checkpoint 2000 VPN-1/Firewall -1, Cisco PIX version 5.1, 6.2, iptables 4, iptables 6.

PROFESSIONAL EXPERIENCE

Confidential, Dallas, TX

Linux/DevOps Engineer

Responsibilities:

• Involved in UNIX/LINUX System and Network administration in VMware ESX 4.1 & 5.1, Sun Solaris (10/11), Linux (RedHat 5/6) servers running different Database and Middleware Applications.
• Involved in building vCenter on Windows environment and managed vSphere clients and performed administration using vCenter Power CLI.
• Involved in creating Redhat and SUSE VM Templates and performed VM cloning activities on ESX Clusters.
• Storage Provisioning, Volume and Filesystem Management using LVM, Veritas Volume Manager and Veritas Filesystem (Veritas Storage Foundation), Configuring ZFS filesystems.
• Build new VMware ESX Server 4.x/5.x on HP HW running Red Hat Enterprise Linux & Created different virtual machine like Debian, windows 2003 & 2008 server, SuSE enterprise Linux using VMware Virtual Infrastructure Client tool and configured with EMC storage box.
• Supported Puppet master server and around 500+ Clients by installing agents and managed multiple modules and manifests.
• Supported around 200+ Linux and Windows VM’s running on ESX Cluster environment and performed vMotion activities for load balancing of resources.
• Involved in support and upgrade of Puppet master server from 2.x to 3.x version on servers and clients.
• Involved in Storage migrations using mutipathing tools and Mirroring options at file level and block both at host level and SAN Array level and proficient in configuring Native and EMC multipathing on servers.
• Maintained 15 VMware ESX server connected with two EMC VNX SAN box and managed of two Cisco MDS switch using Fabric & Device management tool and managed Datastores and peformed Storage vMotion.
• Involved in supporting Development environment with heavy Java base and SAP environemnts with Oracle/DB2 backend.
• Experience working with Linux and Solaris servers connected to EMC and IBM SAN Arrays like VNX, VMAX, XIV and performed host level tasks like multipathing using EMC Powerpath, IBM Tools and Redhat Native Multipathing.
• Clustering solutions for High Availability using tools such as Veritas Cluster Server (VCS), MSCS, RHCS
• Configuring and maintaining virtual server environment using VMWARE ESX, VCenter VSphere.
• Installation and Configuration of Sun Enterprise Servers, HP and IBM Blade Servers (C6000 & C7000), HP Itanium, Configured Enterprise UNIX/LINUX systems in heterogenous environment (Linux, Solaris, HP-UX) with SAN/NAS infrastructure across multiple sites on mission business critical systems
• Setup, Implementation, Configuration, documentation of Backup/Restore solutions for Disaster/Business Recovery of clients using OMNIBACK on UNIX and LINUX platform
• Performed quarterly patching of Linux and Solaris servers on regular schedule. Involved in up Network/SAN based migration activities.
• Good knowledge of RAID groups and setting up NFS,CIFS and iSCSI protocols in SAN/NAS environment on VMWare ESX and Redhat/SUSE LINUX
• Implementation of oracle RAC 10g on HPUX blades and Itanium servers with Redhat linux RHEL 5.x/6.x along with SAN storage on EVAs. Also implemented and support HPUX Service guard on Linux servers
• Involved and set up migration for UNIX/Linux server and SAN storage between data centers and also application migration and testing. This included SAN/Application migration and testing various functionalities of key applications
• Installing, setup of proliant blade BL,DL series with fiber channel connectivity, Cisco GESM interconnect switch, configuring the connectivity, setting up JBOSS cluster, setting up oracle RAC cluster, configuring load-balancing on apache, on Redhat Linux 5.x Setting up NIS/NFS on RedHat servers.
• Setting up JBoss cluster and configuring apache with JBoss on RetHat Linux. Proxy serving with Apache. Troubleshooting Apache with JBoss and Mod jk troubleshooting for the clients.
• Setting up the lab environment with Tomcat/Apache, configuring the setup with F5 virtual load balancer for customer application

Confidential, CA

Sr Linux system administrator

Responsibilities:

• Set up and configuring of Linux ( red hat & SUSE ) and Solaris servers/workstations for clients
• Configuring the NFS servers, setting up servers in network environment and configuring FTP/NTP/NIS servers, clients for various departments and clients.
• Involved in maintenance of systems including patching, setting up Print servers, Configuring File systems, using LVM/Veritas on HPUX/Linux/Sun Solaris OS, involving SAN environment
• Setting and maintaining SUSE/Redhat Linux and Ubuntu servers in Production and Lab Environments.
• Installed, configured, and did maintaining services such as Apache for more than 250 Redhat Linux servers.
• Setting up the Backup solution using native Unix/Linux tools and also worked with Omni back/Data protector solutions.
• Involved in server automation using Puppet for Linux and Solaris servers.
• Support of Applications like Apache Tomcat and Java based applications running on Linux machines for multiple clients.
• Installation, configuration and administration of Linux (Red Hat/SUSE, Centos).
• Storage Provisioning, Volume and File system Management using LVM/Veritas on Linux in a SAN environment
• Configuring network services such as DNS/NFS/NIS/NTP for UNIX/Linux Servers
• Setting up UNIX/Linux environments for various applications
• Project Management for various UNIX/Linux/Windows system integration projects
• Troubleshooting system and user issues, providing friendly and timely UNIX customer support
• Developed and conducted complete hands-on UNIX training courses for basic UNIX, Advanced UNIX, UNIX System administration, UNIX Network Administration, UNIX SHELL scripting depending on the requirement.
• Developed manuals, exercises and powerpoint presentations for the courses

Confidential, CA

Sr Linux Administrator

Responsibilities:

• Installed, upgraded, Mirrored and configured RHEL 4.x and Sun Solaris 10/9.0/8.0 using Kickstart, Jumpstart Installation respectively.
• Upgraded Redhat Linux and Ubuntu on HP/Dell Servers and workstations. Added necessary patches using patchadd utility and scripts.
• Controlled disk operations, disk group operations, volume operations and volume configurations using vxdisk, vxdg, vxassist, vxmake and vxvol in Veritas Volume Manager.
• Configured Printers, Print Server and Print Clients using commands like lp, lpstat, lpadmin, lpfilter & GUI.
• Configured and administered Samba to provide file services, resolved various inter-operability issues between Windows NT & Linux platforms
• Installation, Setup and Configuration of WebLogic 9.0/8.1 application server.
• Deployed Portlets manually using Admin Console.
• Disk Management using different RIAD technologies in Linux using Veritas Volume Manager and LVM.
• Veritas Cluster Installation and Configuration along with Resources and Service Groups Configuration in VCS.
• Configuration and administration of DNS, LDAP, NFS, NIS and Samba in RedHat Linux.
• Network trouble shooting using ndd, traceroute, netstat, ifconfig and snoop.
• Administered and Managed Network Applications and Services like NFS with Hummingbird connectivity V7.1.
• Involved in Configuring DHCP server and giving IP addressing dynamically.
• FTP Server configuration in Linux and done kernel tuning on Linux for play out software.
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories & files using access modes.
• Written Shell scripts to run Batch Jobs on RedHat Linux servers.
• Provided system performance reporting on a regular basis along with keeping all software at current version levels, and maintaining a log of changes for tracking. Siemens, India Linux Administrator
• Worked in Datacenter Lab1 managed 200 servers running Windows and Linux.
• Configured Virtual disk RAID 0, and RAID 1 in Supermicro server 8045C-3R
• SAS controller firmware and new BIOS updated in Supermicro server for VMware ESX server installation
• Maintained DNS & NTP, MySQL database servers
• Installed and Configured system network monitoring tool used Nagios and troubleshooted virtual machine issues
• Compiled, Build & Installed PostgreSQL database 8.3.1 and written shell script for startup in SuSE Enterprise Linux 10sp1 Supermicro dedicated server 6015B-3R for Fortress platform development Lab, app and QA team
• Applying new patches and packages on Linux
• Used IPMI(Intelligent Platform Management Interface) tool for accessing Supermicro server and managed F5 system
• Configured and deployed JBoss application server.
• Supported Bugzilla, Media Wiki, SVN running in Red Hat Enterprise Linux
• Documented all server list, installation, configuration steps
• Solved installation errors for Debian 3.1 Sarge version kernel 2.6.22 in Supermicro servers for Apache2 web server/ruby/python
• Implemented PXE boot server for network boot loader in SuSE and Red Hat Linux

Confidential

Jr Systems Administrator

Responsibilities:

• Installation and configuration of RedHat Linux and Windows NT servers.
• Involved in user account Administration.
• Installed and configured Patches and Packages.
• User account management and support.
• Performance Monitoring & System tuning.
• Involved in managing local disk devices.
• Responsible for configuring real time backup of web servers.
• Log file was managed for troubleshooting and resolving errors.
• Responsible for reviewing all open tickets, resolve and close any existing tickets.
• Documented solutions for any issues that have not been discovered previously
• Trouble shooting the system and end user issues.