SUMMARY

• Over 7+ years of IT industry experience as a System Administrator and Production Support of various applications on SunSolaris, Red Hat Enterprise Linux,and Windows environment.
• Experienced in Installs, Upgrades, Patches, Configuration, performance tuningon UNIX and system software & hardware.
• Experience in Installing, configuring and maintaining Samba,Web Sphere & Web Logic Application Servers, Nagios and Chef.
• Supported AWS Cloud environment with 200+ AWS instances and configured Elastic IP & Elastic Storage and also experience working on implemented security groups.
• Knowledge of Big data and Hadoop ecosystem and its components like HDFS, Hive, Pig, Scoop and Hbase.
• Efficiency in installing, configuring and implementing the LVM, andRAIDTechnologies using various tools like Veritas volume manager,Solaris volume manager.
• Experienced in implementing Splunk, Puppet, Chef, DevOp.
• Experience configuring and managing Puppet master server and also experience in updating and creating modules and pushing them to puppet clients.
• Experience in Installing and configuring LAMP servers like Apache/Tomcat/MySQL/PHP.
• Experience in Installing and configuring Mail Servers using Sendmail and Postfix.
• Experienced in Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups.
• Extensively used Veritas Cluster Server 4.x & 5.x.
• Configuring and Administering DNS, NIS, NIS+, LAMP and LDA Pon Sun Solari sserver environment.
• Experience in Install and configuration of Web hosting administration HTTP, FTP, SSH, & RSH
• Experience in Installing, upgrading and configuring SUNSolaris 9 and 10 on SunServers Using Jumpstart Servers, Manual installation as when required.
• Experience in Installation of VMware ESX server and creation of VMs and install different guest OS.
• Experience in Installation and configuration of Zonesand Containersin Solaris10 environment.
• Experience in Creating and maintaininguser accounts, profiles,security, rights, disk spaceandprocess monitoring.
• Experience inVeritas Volume manager (VxVM), Mirroring, and striping,Parity,New File Systems,MountingandUnmountingFile Systems.
• Resolving system errors and crashes, huge file sizes, file system full errors.
• Experience in Package management using RPM, YUM and UP2DATE in Red Hat Linux.
• Worked on Firewall implementation & Load balancer between various Windows servers.
• Ability to write Shell & Perl scripting.
• Excellent analytical, problem solving, communication and interpersonal skills.
• Capable of quickly learning and delivering solutions as an individual and as part of a team.

TECHNICAL SKILLS

Operating Systems: Linux (RedHat, CENTOS ), Solaris 10/9/8, HP - UX 11.0, 11.11, IBM AIX (4.3/5.x), HPUX11i V1, V2 & V3, VMware ESX, SLES 8,9,10 & 11, Windows NT /2000/2003, MAC OS X 8/9.x/10.x.

Hardware: M5000, M8000, T5220, T5240 Sun E15K, E25K, Sun Fire 6800/4900/3800 , Sun Fire 490/280, v880/v890, Sun Enterprise Servers E6500, E4500, E3500, Work Group Servers E450, E420, E250, E220, Netra 1405, Netra X1, Ultra 80, 60, 30, 10, 5, 2, 1, Intel Servers

Networking: TCP/IP, NIS, NFS, FTP, DNS, DHCP, Samba, Apache, SMTP, SSH, IP-Tables

WEB Technologies: Tomcat, APACHE 2.x, 3.x, Web Logic (8/9/10) & Web Sphere 4.0/5.0

Programming, Scripting Language & Databases: RDBMS, MySQL, Oracle, Sybase, MSSQL, C, UNIX Shell Scripting, Perl Scripting, Python, Ruby, HTML, VB

Backup Management: Veritas Net backup 4.x/5.x/6.x, Ufsdump, Ufsrestore, TAR, cpio, dd, Tivoli, Symantec Netbackup 7.x

Third Party Software: VERITAS Volume Manager, VERITAS Cluster Service (VCS), HP Service Guard, Sun Cluster, EMC Storage, RAID Technologies, SSL, Splunk,Chef,Puppet,DevOps

Protocols: TCP/IP, UDP RIP, OSPF, EIGRP, IGRP, SNMP, SMTP, TELNET

PROFESSIONAL EXPERIENCE

Confidential, Austin, TX

Sr. Linux Administrator/(puppet/chef Developer)

Responsibilities:

• Installed and configured several hundred Red Hat Blade and VMware ESXi 5, 4.1.2 Virtual Environment.
• Configured Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes.
• Assisted in physically installing, racking and cabling new BM Blade Center Sand Cisco UCS 5108 Chassis environment.
• Implemented automation tools such as Splunk, Puppet, Chef and DevOps
• Installing and configuring Red Hat Enterprise Linux 5 / 6 using kick start servers and virtual
• Media based installs on several hundred Cisco UCS B 0 and BM Blade Centers asrequired for UAT/Production Oracle Web logic. Red hat JBoss, Oracle Enterprise Database and MySQL Database Server requirements.
• Responsible for installation, Configuration and administration of Oracle10g/11g database on SCO Unix, Linux and Windows 2003 Servers and also an integral part of the backup and recovery.
• Installing and updating packages using YUM (custom YUM servers/repositories) and Red Hat Satellite Server.
• Configured and Administered LAMP Apache, VSFTPD services, MYSQL and Tomcat.
• Configured Mail Servers using Send mail and Postfix
• Participating in 24x7 production on-call support of Linux and provided technical support to users.
• Configured various alerts, captured support logs and configured resource pools utilizing Cisco UCS Manager.
• Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers using satellite servers.
• Implemented rapid provisioning and life cycle management for Redhat LINUX using kickstart
• Expertise in security hardening (iptables/selinux) major Production Servers, and compiling, building and installing web server based Linux tools.
• Experience in performing, uploading and upgrading new firmware on the Interconnects and Chassis
• Proficient in providing support on the deployed Red Hat Enterprise Linux & Sun Solaris servers from both operating system level and application Level.
• Expertise in configuring Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes utilizing clusters.
• Expertise in creating VM Templates, cloning and managing Snapshots.
• Expertise in working with LAMP- MySQL databases, Apache Web server, Tomcat Application Servers
• Troubleshooting any performance or configuration issues with MySQL and Oracle.
• Expertise in hardening, Linux Server and Compiling, Building and installing Apache Server from sources with minimum modules.
• Monitoring and troubleshoot backups and schedule Cron jobs.
• Experience in scripting using BASH & PERL, Mail Server, Samba Server, Apache Server.
• Worked on configuringNIS, NFS, DNS, DHCP, FTP, FSTP, Telnet and RAIDlevels.
• Extensive experience in network managementTCP/IP, NIS, DNS, NFS, VLAN.
• Experience in database replication using OCFS2 file system with oracle 10g and 11g database
• Experience in deploying several sets of Linux guest builds from VMware templates using PowerCLI as well as Red Hat Satellite Server.
• Experience in deploying RHEL 5.x, 6.1 in a blade environment.
• Patch management of servers and maintaining server's environment in Development/QA/Staging/Production.
• Resolving assigned remedy tickets and remedy tools in Development/QA/Staging/Production.

Environment: RHEL 4.x/5/6, Solaris 9,10&11, HPUX, Centos, SUSE 10, 11, VERITAS Volume Manager 3.x/ 4.x, VERITAS Storage Foundation 5, Redhat Cluster, VERITAS Cluster Server 4.1, Tripwire, NFS, DNS, SAN/NAS, puppet,chef,splunk.

Confidential, Villa Park, IL

Sr. Linux System Administrator / Puppet Developer

Responsibilities:

• SupportedSolaris/Linux servers in production / stage / development environment.
• Configure and administrate database cluster using VERITAS cluster.
• VERITAS Volume Manager 3.x/4.x and Solstice Disk suite (SVM) RAID configuration, troubleshooting, maintenance, disk management & space allocation etc.
• MigratedSunServer (Around 1000) and HP Servers (Around 300) Lift and Shift from Old Data Center to New Data Center on a Weekly Basis.
• Installation Configuration troubleshooting & maintenance ofVERITAS cluster.
• Solaris7, 8 & 9, 10 OS configuration, performance tuning, patching and maintenance.
• SunServers Hardware, OBP configuration & troubleshooting
• REDHAT Enterprise Linux 3, 4 Installation on various servers using Kick start and configuration & support for various applications run on Linux environment.
• Performed Mechanization Puppet and Chef.
• Exclusively done Oracle Migration from 4 Node Cluster to 4 Cluster and also 6 Node to 2 Node.
• Performed SRT testing before bring the Cluster into the Production.
• Migrated VERITAS Disk Groups using Deport and Import Techniques.
• Day to day duties for UNIX/Linux server Maintenance and Support to developer's team for their issues with application, tuning, troubleshooting, software running on UNIX/Linux Servers.
• Disaster Recovery operation setup & checkup at contracting facility
• Performed in installing, configuring and trouble-Shooting web servers like IBM HTTP Web Server, Apache Web Server, Websphere Application Servers, and Samba Server on Linux (Redhat & CentOS).
• Automation scripts for weekly and monthly backups in perl and shell
• UNIX Server monitoring for maximum availability using BMC patrol and other monitoring tools and taking steps to keep servers up and running under 24x7 environment for maximum uptime.
• 24x7 support for the UNIX servers. Rotating on call pager responsibilities for Production environment.

Environment: Solaris 8/9 with NFS and NIS, Linux RHRL3,4,SunUltra Sparc 60,SunE220,E250,E450,E3500, E4500, VMware, SolsticeDisk Suites, Volume Manager (VxVm) 4.1,Veritas Cluster server (VCS), VMware.

Confidential, New York, NY

Unix/Linux Admin / (Puppet & DevOps) Developer

Responsibilities:

• Supported Solaris/Linux servers in production/QA/ Development Environment, includingSolarisZone and RHEL VM's.
• Installed andConfiguredSolariszones: whole, sparse, branded onSunHw (x4140,x4170,T5240.T3-1,T3-2)
• Installed ESXi 4.1Hypervisor on HP Servers.
• Installing, configuring and maintainingapache, samba,Web Sphere& Web Logic Application Servers and Nagios .
• Worked on VMware, VMware View, vSphere 4.0. Dealt with ESX, ESXi servers.
• Enhanced and simplified vCenter server 4.0.
• Installation of systems using Jumpstart forSunServers and Kickstart for RHEL on HP Hw.
• Configure, support and perform routine maintenance of hardware and software for Linux andSolarisservers.
• Launching Amazon EC2 Cloud Instances using Amazon Images (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.
• Supported 200+ AWS cloud instances running Ubuntu, Redhat and Windows environments.
• Involved in Hardware and software evaluation, recommendation and vendor management.
• Automation of various administrative tasks on multiple servers using Puppet.
• Implemented Puppet, DevOps.
• Deployed Puppet, Puppet Dashboard, and Puppet DB for configuration management to existing infrastructure.
• Proficient in installation, configuration and maintenance of applications like Apache, LDAP, PHP
• Involved installing and managing different automation and monitoring tools on Redhat Linux like Nagios, Splunk and Puppet.
• Resolved config issues and problems related to OS, NFS mounts, LDAP user ids DNSand issues.
• Experience in creation and maintenance of ZFS file systems / set quotas.
• Regularly applying patches for Redhat Linux,Sunand HP systems.
• Develop Unix Shell scripts for regular and periodic jobs and also for sysadmin jobs.
• Extensively worked with Business, Application, Database, Network and SAN Team for project requirement.
• Project co-ordination and providing technical advice on system to management
• Plan, document, review and maintain system administration guidelines and policies
• Manage and co-ordinate Unix and Linux administration tasks
• Ensure Data Center operation meets required service levels
• 24x7 support for the UNIX servers. Rotating on call pager responsibilities for Production environment.

Environment: Solaris 9 & 10, RHEL 4.X,5.x,6.x:SunUltra SparcT5220,T5240, T3-1,2,M5000,X4140,x4170; HP DL360, 380 & 580; VMware, SolsticeDisk Suites, ZFS; Volume Manager (VxVm) 4.1, Veritas Cluster server (VCS), VMware.

Confidential

Linux Admin

Responsibilities:

• Managing UNIX Infrastructure and EMC storage involving maintenance of the servers and troubleshooting problems in the environment.
• Installing operating systemsSolaris, Linux and HP according to business requirements.
• Planning and implementing the configuration changes to the servers adhering with ITIL change management process.
• Trouble shooting the issues ranging fromSolaris, Linux and SAN environments.
• Created and MaintainedSolaris10 zones/containers.
• Experience in creation and maintenance of ZFS file systems.
• Regularly applying patches both forSUNand Linux systems.
• Installed and Configured Jumpstart and Kickstart Server.
• Working with VERITAS Volume Manager for creating volumes and file systems for various applications and databases.
• Experience with Java Enterprise Application Servers such as IBM Web Sphere, Oracle Application Server (OC4J), BEA Web Logic, JBOSS, and Tomcat.
• Creating and maintenance of Virtual machines in VMware ESX.
• Worked on different VMware products like VMware workstation, GSX/VMware server, VMware player, VMware Converter and ESX server 3.X.
• InstalledWeb Logic 8.1with SP5 Server and configured domains,Adminand managed servers for Applications to be deployed.
• Configured, Installed LDAPSolarisand Linux server.
• Connecting to ESX server by using VIC, putty andWeb access.
• Installed and configured Send mail onSolarisLinux and AIX servers.
• Experience in working with Hitachi Storage navigator.
• Manages Site minder administrator accounts anduserswhen using the Site minder LDAP repository.
• Migrated central send mail server to Postfix and Installed and Migrated SAP from Linux toSunservers.
• Involved in SAN migration project to migrate the data across the storage arrays.
• Established end-to-end software development process using shell on top of BO, including automated builds of Rhapsody models.
• Implemented security policy and managed firewalls/IDS. Managed DNS, send mail, IP space, and co-location facility transition.
• Providing 24/7 on-call support on rotation basis.
• Assembled, Replaced and HandledSun, Linux and AIX Hardware problems inData Center.
• Developed Korn and Bash shell-scripts to automate routine activities
• Installation and Configuration of Windows Active directory server 2000 and citrix servers. Administration of applications via Citrix MetaFrame.

Enivornment: SUNE10K, M4000/M500, E4500/5000, E35000, Hitachi 9980v. Solaris8/9/10, RHEL 3, ESX 3. solstice disk suite (SDS),SUNUCE, Jboss, Veritas Volume Manager (VxVm),VMware, Veritas Cluster server (VCS).