SUMMARY

• Overall 7 years of experience in UNIX/LINUX Systems and Network administration for Sun Solaris 9, 10, 11 Linux (RHEL 4, 5, 6 & SUSE 9/10/11), HP - UX 10.x, 11.x and IBM AIX 4/5/6 running on X86, SPARC, Power and PA-RISC HW.
• Installed, configured and maintained UNIX/LINUX servers in an enterprise environment (Linux, AIX, Solaris, HP-UX) with SAN/NAS infrastructure across multiple sites for business critical applications.
• Experience working with cloud computing using Amazon EC2 services.
• Configuring and maintaining virtual server environment using VMWARE ESX/GSX, VSphere, VCenter.
• Volume and Filesystem management using Veritas Volume Manager (VVM) and Veritas Filesystem (Veritas Storage Foundation).
• Experience supporting servers running Solaris 11 on SPARC T3 and T4 HW.
• Experience configuring and managing Puppet master server and also experience in updating and creating modules and pushing them to puppet clients.
• Clustering solutions for High Availability using tools such as Veritas Cluster Server (VCS), RedHat HA (RHCS), and MSCS.
• Involved in Virtualization using VMWare ESX 3.5/4.1/5.0 and build Linux and Windows VM’s.
• Experience working with different HW like HP, Dell and VCE HW like Blade centers, Rack servers and Vblock.
• Supported different tools for automation like configuration and management software puppet, scheduling software BMC, Maestro and Monitoring softwares like Nagios and Splunk.
• Experience in automating jobs using shell and Perl scripts.
• Extensive experience in writing and troubleshooting scripts in ksh, bash, python & perl languages.
• 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.
• Experience in supporting Solaris Zones and LDoM’s on T series servers running Solaris 11.
• Performed patching of Linux, Solaris, and HPUX and AIX servers on regular schedule. Involved in up Network/SAN based ignite images for HPUX PA RISC and integrity servers.
• 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 SFTP/FTPS.
• Extensive experience working with automation tools like Puppet to push updates of configurations like sudo, ssh, sendmail and patches.
• Configuration and Implementation of SAN Storage such as IBM DS8000/4000, IBM ESS Shark, EMC Clariion, HP EVA, NetApp.
• Setting up NIS/NFS on RedHat servers, setting up JBOSS cluster and oracle 10g cluster, configuring load-balancing on apache, Redhat Linux 4.0/5.0.
• 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: SunSolaris 7,8,9 & 10 Linux (RedHat 3.x,4.x,5.x, SUSE 10), HPUX 10.20,11.11,11.23, 11.31,AIX, Windows,VMware ESX 3.x,4.x.

Hardware: Sun Ultra Enterprise Servers (E3500, E4500, E450, E420R, E250, Sun Fire (6800/4800/3800/ v880/v480/v210/v440/280R/15K/25K), TSeries, MSeries, IBM F-series and P-series, IBM RS6000, DELL Poweredge 1650,2850,2950,6400. HP DL320,DL360,DL380, DL580 (G5,G6), IBM/Dell Blade Servers

Tools: Veritas Foundation Suite (VxVM, VxFS), Veritas Cluster Server (VCS),Veritas Netbackup, HP ServiceGuard, Storage Manager, LVM, PuppetTivoli tools, DiskSuite, Legato Networker,Nagios, Hi Command Suite,Navisphere, EMC Control Center KickStart Jumpstart, Ignite, HPOpenviewCiscoWorks, Sniffer & Splunk.

Programming Languages: C, C++, C#, ObjectiveC, Java, HTML, JavaScript, UNIX Shell Programming (ksh, csh, sh), Perl.

Database: MS SQL SERVER, Oracle 9, 10g MY SQL, SQLite, INFORMIX, Sybase

Middleware: Windows IIS, Apache 2.x, Tomcat 6.0,7.0, JBoss AS 4-7

Networking: TCP/IP, NFS, Telnet, FTP, DNS, DHCP, LDAP, route, Netstat, Xinetd, HTTP, SAMBA, NetApp, top, sar, vmstat

Storage: EMC Symmetrix/Clarriion, Sun Storage Array D1000, A5000, Hitachi arrays, HP EVA.

PROFESSIONAL EXPERIENCE

Confidential, Burlington, MA

Linux/Unix Systems Administrator

Responsibilities:

• Experience in Installed, Configuring and Maintaining Solaris/RedHat Linux (Solaris 8,9 & 10, OEL 5/6, RedHat Enterprise Linux 4.x,5.x & 6.2) on SPARC, x86 and Itanium server’s and Blade Centers.
• Storage Provisioning, Volume and Filesystem Management using LVM, Veritas Volume Manager and Veritas Filesystem (Veritas Storage Foundation), Configuring ZFS file systems.
• Configuring and maintaining virtual server environment using VMWARE ESX, VCenter VSphere, and Solaris 10 Zones.
• Installation and Configuration of Sun Enterprise Servers, HP and IBM Blade Servers, HP 9000, RS 6000, IBM pSeries
• Configured Enterprise UNIX/LINUX systems in heterogenous environment (Linux (Redhat &SUSE), 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 SUSE & Redhat Linux platform.
• Involved in supporting different HW ranging from Rack to Blade and also supported Vblock HW to run ESX environment.
• Installed and configured Netscape and Apache web server and Samba Server.
• Performed quarterly patching of Linux, AIX, Solaris and HPUX servers on regular schedule. Involved in up Network/SAN based ignite images for HPUX PA RISC and integrity servers
• 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.
• Implementation of oracle RAC 10g on HPUX blades and Itanium servers with Redhat linux RHEL 4.0/5.0 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
• Setup, Implementation, Configuration of SFTP/FTP servers.
• 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 10g cluster, configuring load-balancing on apache, on Redhat Linux 4.0/5.0 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.

Environment: Redhat 5.6, Solaris 9/10, VMware ESX 4.0/4.1, Vsphere Client 4.0, HP Proliant Servers DL 380/360,Dell Servers (R series),Windows 2008 sever, EMC Clariion, Netapp, Apache2 WebServer, F5 load balancer.

Confidential, San Fransico, CA

Linux/Unix Administrator

Responsibilities:

• Administration of RHEL and AS 3, 4, 5 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 3.5.
• System and Network Administration training, which include but is not limited to installing Linux, Solaris, UNIX internals, NFS/NIS management, and DNS Configuration
• Configuration of LVM on AIX 5.x and RHEL and extensively used LVM, created VGs, LVs and mirroring
• Creating, installing and configuring Zones, LDOMs in Sun Solaris 10using Jumpstart.
• Performs Integration, Deployment and maintenance support of system integration activities.
• Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570
• Regular disk management like adding/replacing hard drives on existing Linux, AIX, Solaris servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
• Provides coordination with technical presentation to the customer. Perform data backups and disaster recovery operations.
• Experience in installation of Splunk tool, proficient in Splunk search and building reports and alerts.
• Build LPAR system and Installed AIX 5.3 and 6.1 on LPAR using NIM Power 4, 5 and 6 systems and Upgraded Maintenance level as well.
• Involves in maintenance support and troubleshooting of system deployed with customers.
• Adding SAN using multipath and creating physical volumes, volume groups, logical volumes.
• Gathering requirements from customers and business partners and design, implement and provide solutions in building the environment.
• Installing and configuring Apache and supporting them on Linux production servers.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Installing Jboss application, JDK 1.5, 1.6, setting up and testing Ingrain device.
• Updated the System Firmware for IBM power5 and power4 machines.
• Used LPAR Validation Tool (LVT) to validate the resources assigned to LPARs
• Setup of full networking services and protocols on AIX, RHEL including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP applications, to insure optimal networking, application functionality
• Installed and verified that all AIX/Linux patches or updates are applied to the servers.
• Performed Installation and Configuration of NIM. Installed AIX on each node using NIM.
• Expertise in enterprise class storage including SCSI, RAID and Fiber-Channel technologies.
• Configuration of the RAID 1 and RAID 5 Storage using Veritas File system and Volume Manager.
• Installed and Configured Websphere Application servers on Linux and AIX.
• Provide technical support to other teams, members and associates.

Environment: Solaris 8/9/10, Red Hat Linux 4/5, BMC Tools, NAGIOS, Veritas NetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory, BEA Web logic servers,SAN Switches, Apache, Tomcat WebSphere, Weblogic application server.

Confidential, Boston, MA

UNIX/LINUX-Systems Administrator

Responsibilities:

• Installation, Configuration, Administration & Trouble Shooting of Solaris 10, and RHEL 5.
• System builds from the scratch for UNIX and Linux system.
• User administration through power broker and power password tools.
• Installation and configuration of Apache, Tomcat web servers.
• Package, Patches management, migration, integration & distribution in development, testing, QA, Training, Production environment. ( Testing: UAT, SIT, OAT, Performance testing)
• Installation, Configuration and Administration of High Availability Veritas Cluster Servers for failover and redundancy purpose.
• Installation and configuration of Veritas Volume Manager, LVM, Veritas File System and Veritas Cluster Server.
• Created User, Groups. File Systems per database requirement.
• Disk and File system management through Veritas Volume Manager.
• Managed physical and Logical volumes, Volume Groups etc. in Linux.
• Installation, Configuration and Administration of Web logic, Web sphere and Apache Servers in Solaris.
• Used Puppet to build, config and maintain all servers.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Configuration of IPv4, IPv6 and IPSEC.
• Installation and configured Solaris 10 with zone configuration.
• NFS Management - Take care of user accounts/groups, setting up of NFS Environment.
• Maintaining site services, it includes NIS master, slave servers, DNS servers, SAMBA servers, FTP server and Net backup server.
• Trouble shooting of day to day system and user problems
• 24*7 production and technical support.
• Advanced trouble-shooting issues in production environment raised by Tier 1 and Tier II support
• Planning and implemented Disaster Recovery sites from the scratch.
• Troubleshooting various problems, logging call with vendors.
• Installation & configuration of Solaris Jumpstart Server.
• UNIX Shell/Perl scripting for job automation.
• Creating zones for application.
• Interacting with various teams such as Oracle database team, and Net Backup team.

Environment: Solaris 8,9,10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Sun E10k, E25K, E4500, SunFire V440/880, DMX 3 & DMX4, Siteminder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.