SUMMARY

• Over 7 years of experience in Administration and Development of Unix(Red Hat Linux, SUSE Linux & Solaris) and windows (XP/Vista/7,2003/2008, ).
• Experienced in Installing, configuring and administering Red Hat Linux AS 3.0 /4.0/5.x/6.x running on Dell, IBM and HP x 86 Servers.
• Involved in Automation using Configuration management software’s like Chef, Puppet and ansible.
• Experience in supporting Amazon EC2 environment with around 200+ instances running Apache and Java development applications like Jboss.
• Design and Implementation of migration strategy for consolidating Data Centers from around the world to two centralized locations in US which involves 6000+ servers of various Windows versions.
• Experience in the design and development of applications using J2EE technology including Servlets, JSPs, Struts 2, Spring, JDBC, Hibernate, SVN, Mercurial, ClearCase and Ant
• Good experience and understanding of SAN (SAN arrays; HITACHI, EMC) technology including zoning, disk creation on various systems, maintaining and configuring various fiber switches and storages.
• Experience in network administration, deploying and troubleshooting of DNS, LDAP, NIS, NFS and DHCP etc.
• Expertise in System performance tuning, capacity planning and Disaster Recovery planning.
• Identification, planning and migration of P2V candidates and new builds from each sites without any downtime.
• Creating and managing Virtual Machines and Templates, worked with clones and snapshots of Virtual Machines.
• Troubleshooting, documenting and knowledge transferring of Double Take process to the BUs.
• Worked with Backup Team to Configure the Master and Client Backup servers Using VERITAS Net Back up 4.5/5.0
• Performed Servers consolidation and virtualization using VMware virtual infrastructure, VMware ESX, Virtual Center, VM tools.
• Configuring Kickstart Servers and booting the images using PXE in Red hat Linux (RHEL) and Jumpstart in Solaris.
• Installed OS by using Kickstart, NIM and Ignite methods.

TECHNICAL SKILLS

Operating Systems: RHEL6.x/7.x, SUSE Linux, CentOS 6.0, HP UNIX, AIX, Windows XP,7,8.1, Windows 2003, 2008 R2, 2012 servers

Hardware: IBM Blade center Chassis (E&S), IBM Standalone P, X360, X350 series, Intel Modular Server, Dell Power Edge, HP C3000 & C7000, Confidential Network equipment and other rack mount servers.

VMWare: VSphere 4.5/5.0/5.5, VMware ESX and ESXi, Vmware DRS, HA, FT, Vmotion, Storage Vmotion, vCenter server 5.0, VMware NSX, VMware converter enterprise, VMware Update Manager, VMware VCB, Image for Windows, Power CLI, VMware Workstation8.0/10.0.

Other skills (Knowledge/ Understanding): VDI, Citrix, VMware View, Horizon, VCAC, VMware vRealize suite (Automation and Orchestrator), vCOPS,NSX, Storage DRS, Site Recovery Manager, Shell Scripting, Nagios, BMC Remedy, Visio.

Application servers: SQL Server 2005/2008, MS Active Directory 2003/2008, DHCP, DNS, WINS, and Microsoft Internet IIS 6.0, Sharepoint 2010, Powershell scripting.

Storage: NetApp, N - series (N3300, N3600, N5500), IBM DS3200, EMC Clarrion CX, CX3, CX4, VNX (Management tool - Unisphere), NAS

PROFESSIONAL EXPERIENCE

Confidential, Charlotte, NC

Sr. Unix/Linux Administrator

Responsibilities:

• Installation of Redhat, Centos Linux on x86 HW like HP and Dell & Solaris 9, 10 operating systems on SPARC platforms.
• Performed volume management tasks like mirroring using SVM, Veritas Volume Manager 4.x/5.x and HPUX LVM.
• Supported Orcale DB and Oracle RDBMS on Redhat/Centos environments.
• Worked with VERITAS Foundation Suite 5 and performed tasks like creating disk groups, volumes, initializing disks, replacing failed disks etc.
• Experience working with EMC Powerpath and Redhat and Solaris Native multipathing.
• Experience working with servers connected to on SAN and NAS environments like EMC and NetApp.
• Installed and configured VERITAS Net Backup and TSM on Red Hat Enterprise Linux.
• Involved in the design and development of applications using J2EE technology including Servlets, JSPs, Struts 2.
• Configured kick-start server and updating/applying patches to the servers using Red hat Satellite server.
• Deployed Redhat Satellite Server with custom repositories to provide a stable management solution for Linux environment.
• Configured Kick start servers to install Red Hat Linux and VMWare ESX on multiple machines.
• Manage file systems using Software RAID and recover an array, Manage file systems using Logical Volume Management, Resize file systems and protect them with LVM Snapshots.
• Disk mirroring and RAID implementation using VERITAS Volume Manager and Linux Volume Manager.
• Upgrading of VMware ESX 3.0.0 to ESX 3.5.
• Creating virtual machines using Xen, KVM hypervisor on xen servers, installing Red-hat, Cent OS using kick-start and Cobbler
• Assisted in resolving hardware issues and network connectivity issues related to TCP/IP.
• Installed and configured DHCP, DNS, NFS.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Update and modularize Salt states to allow for ease of use between multiple
• Monitoring the hosts and networks using NAGIOS, Iostat, VMstat, MPstat and Other Tools
• Troubleshooting on Sun Java System Web Server 6.0 and Apache 1.3.x web server on Solaris with experience in installing SSL certificates.
• Performance monitoring on Solaris & Linux servers using iostat, netstat, vmstat, sar, top & prstat.
• Configured NFS and Open LDAP services in Red Hat Linux and Solaris systems.
• Deployed Chef Dashboard for configuration management to existing infrastructure.
• User, Group management for all the UNIX servers.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.
• Utilization and Implementation of VMware at the full implementation range using the complex features of VMware connectivity with SAN, HA and DRS configuration.
• Modifying/ Writing scripts in Bash and Korn shell for optimizing day to day administration.

Confidential, Atlanta, GA

Sr. Unix/Linux Administrator

Responsibilities:

• Installed and configured of hardware and Linux like SUSE and RHEL 5/6 on x86 servers.
• Build servers, configured, installed tools, installed patches and transitioned servers to production support.
• Installation of web sphere on aix server.
• MigratingAIXOS from 5.1 to 5.2, 5.3 on 520, 550, 610, RS/6000
• Experience in support Amazon AWS EC2 instances running Ubuntu, Centos and Redhat Linux.
• Experience supporting Redhat Cluster and Oracle RAC environment running Oracle databases in High Availability.
• Involved in automation of Linux using kickstart on Physical and VMWare ESX VM’s.
• Experience creating and managing HP Proliant DL G4, G5, G6 & G7, C7000 Blade Centers.
• Manage file systems using Software RAID and recover an array, Manage file systems using Logical Volume Management, Resize file systems and protect them with LVM Snapshots.
• Subversion administration for taking the builds usingChefManagement.
• Experience in automation using scripts in Perl and also shell (bash and korn).
• Involved in managing Virtual Redhat/Centos Linux servers running on VMWare ESX 4/5.
• Experience performing SAN provisioning to Linux and ESX servers from EMC SAN arrays VNX and Clariions.
• Configure dynamic and static network settings for IPv4 and filter packets, Review file system management concepts, removable media and configure NFS shares with AutoFS.
• Experience in SAN migrations at Host level on RHEL, HPUX and Solaris servers using Open Migrator, Open replicator and RHEL LVM and Veritas commands.
• Experience supporting single sign on authentication using LDAP on Linux environment.
• Configured Kick start servers to install Red Hat Linux and VMWare ESX on multiple machines.
• Experience configuring LDAP clients and performing activities like user administration using LDAP.
• Involved in virtualization with VMWare ESX vSphere 4.1 and created VM’s and performed P2V and P2P migrations and involved with Solaris 10 Virtualization using LDoms and Zones.
• Supporting application’s like JBoss and Weblogic along with Front end webservers like Apache.
• Installed patches to latest patch level, applied patch cluster and installed software packages as needed.
• Experience working with Java applications like Weblogic, Websphere and JBoss and performing JVM installations and upgrades in weblogic environment.
• Monitoring the hosts and networks using Iostat, VMstat, MPstat and Other Tools.
• Creating user accounts, user administration, local and global groups on ESX and Red Hat Linux platform.
• Disk mirroring and RAID implementation using VERITAS Volume Manager and Linux Volume Manager.
• Experience working with configuration management tools like puppet.
• Installed VERITAS Volume Manager and Powerpath on Red hat Linux servers.
• Security implementation through ACL, RBAC and TCP Wrappers.
• Installing, configuring, and administering DNS, NFS, NIS, Mail servers, FTP servers RPM servers on Red Hat Linux platforms.
• Resolving regular tickets on Hawk, Syswatch and ping probe Monitoring tools using sitescope.
• Controlling the System Logging services, and examining system Log Files of all system events.

Confidential, NC

Sr Linux Administrator

Responsibilities:

• Worked in Mission Critical Production environment that deals with OS level issues through the Enterprise.
• Experience managing user administration with Open LDAP and proficient using command ldapsearch, ldapadd and ldapdelete.
• Regular Admin Tasks include building Linux servers for Production, Development and Test Environments and supported the ones under production.
• Involved in building Linux VM’s using VM templates and kickstart servers to build multiple servers over the network.
• Experience in managing EMC arrays and provisioned SAN disks to Linux and Solaris arrays.
• Performed OS upgrades for critical servers under production.
• Experience in creating file systems on LVM, VxVM on Redhat Linux and HPUX.
• Performed various file system changes to accommodate upgrades in applications, services and databases.
• Experience configuring Open LDAP and setting up clients for Open LDAP.
• Involved in decommission of the servers which reached end of life and performed SAN migrations using LVM and EMC tools.
• Maintained OS/APP backups for Linux and Solaris servers
• Managed critical bundles and patches on the production servers after successfully navigating through the testing phase in the test environments.
• Implemented scripting new by writing shell scripts and perl scripts and scheduled those by using cron.
• Worked on the virtual environments through the virtual ware clients like VMIC/ VSphere.
• Responsible for evaluating Storage Foundation Cluster File System for possible production use.
• Monitoring the hosts and networks using NAGIOS, Iostat, VMstat, MPstat and Other Tools
• Manage software on system using YUM, and RPM.
• Worked on the Java based applications and supported JVM’s and worked on issues related to Java and patching regularly with weblogic and Jboss applications.
• Worked with HP Integrated Lights Out (iLo) software in effectively managing the server under cluster environment.
• Implementing file sharing on the network by configuring NFS/SAMBA on the system to share essential resources.
• Good knowledge in structuring the documentation for Architectural Design and Build Plan Documents.
• Managed Disks and File systems using LVM on Linux.
• Performed day to day health check and maintained the servers by taking the down time from the users.
• Performed configuration and troubleshooting of services like NFS, NIS, DHCP, FTP, LDAP, Web servers (Apache), Samba servers
• Installation of Cent OS 4.x manually and upgrading through YUM installation.
• Provided afterhours and weekend support to facilitate the issues in the production environment.

Confidential

Systems Administrator

Responsibilities:

• Installing, upgrading and configuring SUN Solaris 8, 9 and 10 on Sun Servers using Jump start.
• Plan and implement assigned projects, change management, on-call support, and hotline bridge participation.
• Installation and monitoring of Zone File System, Veritas Volume Manager, Veritas Net Backup.
• Troubleshooted various problems when working with VxVM in initializing, replacing, mirroring, and removing disk devices.
• Experience in providing day-to-day user administration like adding/deleting users and managing user’s queries and maintained Server using Cfengine.
• Worked with and assisted customers with setting proper Priority/Severity of problems, work problems to resolution, recorded/documented actions in databases as well as utilized tools and resources.
• Installation, configuration and maintenance DNS servers, Mail servers, FTP servers, NFS, NIS, RPM, Zones, LDAP and Microsoft Active Directory & Samba Web servers on Sun Solaris, Linux platforms.
• Troubleshooting and analysis of hardware and software failures for various Solaris servers (core dump and log file analysis).
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Network Administration - involving day-to-day routine checks, Configuration of LAN adapters, Routing, NFS, DNS and Troubleshooting.
• Implemented crontabs, shell scripts for automatic jobs.
• Restored files for end-users when necessary.
• Experienced in tasks like managing User Accounts and Groups, managing Disks and File Systems.
• Performing tasks related to technical support & management.
• Installed and configured Windows 2003 servers.
• Performing Backup and restore.
• Created user roles and groups for securing the resources using local operating system authentication.
• Analyze system performance, client to server traffic and server to server traffic.