SUMMARY

• Experience in installing, configuring, managing, maintaining and developing AIX Systems, Linux (RedHat), Windows 2003 Server, HP UNIX and Solaris
• Over 9+ years of experience in technical support and maintenance of UNIX Systems.
• Strong OS and server troubleshooting, OS Patch management, and build Infrastructure skills.
• Experience in Administration of RHEL 3, 4, 5 & 6 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues
• Expertise in creating scripts with Korn, Perl which would help in automation and simplification of jobs.
• Installation, administration and configuration of VIO Server and VIO client LPAR’S through HMC.
• Red Hat Enterprise Linux /Cent OS / Fedora 4 Server / Ubuntu 10.04 LTS - Installation, and configuration and maintenance
• Linux Shell Scripting.
• Mail server - Installation configuration and maintenance of mail server - Sendmail,
• Web server - Apache, Nginx, PHP Mysql
• Squid Proxy server - Installation and configuration
• Linux Firewall / Security / Unified Threat Management System - IP tables configuration, Cyberoam UTM configuration and Administration
• Database server -Installation and maintenance administration of MySql
• Storage management - LVM, RAID
• Server configuration - DNS, DHCP
• Linux Containers - Control Panel / Plesk Panel
• Hands on experience in PowerShell, VB, WMI Scripting, shell and perl
• Experience in Administration of AIX 4.3, 5.1, 5.2, 5.3, 6.1, 7.1
• Installation and configuration of NIM master server and clients
• Migration of AIX OS from 4.3.3 to 5.1, 5.1, 5.2 to 5.3 and 5.3 to 6.1 on pSeries servers.
• Migration of AIX Systems from old p4, p5 to p6 hardware.
• Experience working on Power5, Power6 and Power7 P740, P750, P560, P595, P570, P575.
• Experience in working with Live Partition Mobility to perform migration from one frame to another.
• Experience in MICRO-PARTITIONING on P series servers.
• Experience in PowerHA, AIX versions 6 and 7, PowerVM (VIO), HACMP, Scripting and knowledge of Red Hat Linux.
• Configuration of HACMP 4.5, 5.1, 5.2, 5.3 as well as performing failover and failback of HACMP Clusters on a regular basis as per the application requirement.
• Migration of HACMP from version 4.5 to 5.1.
• Development Server: Apache Tomcat server - Installation, configuration and management
• Virtualization Sun / Oracle - Virtual box on Linux hosts
• SAS - SAS Administration / Base SAS programming, Macro and SQL programming, Statistical Analysis
• Good knowledge of regression and regression diagnostics, and modeling.
• Conversant with Basel and Risk Modeling.
• R language Data Modeling, Analysis, Visualization & Reporting -Engineering computation C/Fortran/Spreadsheets /Excel /MS Access
• Excel /Geekoboard Dashboards
• Excel Functions: lookups, financial, statistical, pivot tables, scenarios, solver and charts

PROFESSIONAL EXPERIENCE

Confidential, Chicago, Illinois

Unix/Linux System Administrator

Responsibilities:

• Implementation or Migration of SAS 9.4 in Linux Grid Environment, including testing, tuning, upgrading and troubleshooting Linux OS related issues during the migration
• Installation of all third-party softwares required for SAS application, such as Oracle client, IBM Platform LSF 9.1.3, Platform Process Manager 9.1.3, DataDirect ODBC Driver for Greenplum 9.4, Junit 4.8.1, gms8.0.1(Grid management Service), etc
• Administration of Red Hat Enterprise Linux Server 6
• Experience in Administration of AIX 4.3, 5.1, 5.2, 5.3, 6.1, 7.1
• Installation and configuration of NIM master server and clients
• Migration of AIX OS from 4.3.3 to 5.1, 5.1, 5.2 to 5.3 and 5.3 to 6.1 on pSeries servers.
• Migration of AIX Systems from old p4, p5 to p6 hardware.
• Experience working on Power5, Power6 and Power7 P740, P750, P560, P595, P570, P575.
• Experience in working with Live Partition Mobility to perform migration from one frame to another.
• Experience in MICRO-PARTITIONING on P series servers.
• Experience in PowerHA, AIX versions 6 and 7, PowerVM (VIO), HACMP, Scripting and knowledge of Red Hat Linux.
• Managing tickets to other Confidential support teams related to environment issues where applicable
• SAS environmental Support Experience, to bring 100%availablility of Environments, SAS Grid/Compute environment and SAS Metadata
• Experience in using VERITAS Volume manager. Creating new file systems, mounting file systems and unmounting file systems.
• Experienced in configuration & maintaining Veritas Cluster server, Netbackup
• Experience working with Storage Area Network (SAN), and NAS 9 Network-attached storage)

Confidential, Moline Illinois

Unix/Linux System Administrator

Responsibilities:

• Administration of RHEL AS 3, 4, 5 & 6 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Experience in installing, configuring, managing, maintaining and developing AIX Systems, Linux (RedHat), Windows 2003 Server, HP UNIX and Solaris
• Providing technical support on application server-related and web applications issues.
• Deployment of applications on Linux / UNIX environments
• Help support a 24/7 Linux/Windows trading environment
• Installing configuring and supporting Cent OS / Red Hat Linux Container / virtual machines.
• Conducted Disaster Recovery management and testing
• Monitored and manage the 24x7 operation of multiple high volumes Company s web sites to ensure highest stability, availability and customer experience
• Coordinated with vendors, development, business partners and escalation support teams
• Executed all aspects of site planned and unplanned maintenance activities
• Developed timelines for problems that assist in root cause analysis
• Handled problem resolution; track issues and changes
• Supported all ENV(Dev/Int, syst, perf, pre-prod, Prod) troubleshooting the issue using (SSP, VMware, VCAC/Dell-vis, F5, Splunk, CMP)
• Identified and solved issues in a timely manner.
• Experience using Tomcat 6, Apache 2 web server applications.
• VMware - Understanding of VMware Concepts (Virtual Center, ESX Host, Virtual Machines) and the ability to access Virtual Machines through Virtual Center
• Administration of RHEL and AS 3, 4, 5, 6 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• 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.
• Installed and verified that all AIX/Linux patches or updates are applied to the servers.
• Involved in maintenance support and troubleshooting of system deployed with customers.

Confidential, Minneapolis Minnesota

Linux/AIX Administrator

Responsibilities:

• Administration of RHEL AS 3, 4, 5 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues
• Administrating, Installing, configuring and supporting CentOS
• Providing technical support on application server-related and web applications issues.
• Deployment of applications on Linux / UNIX environments
• Help support a 24/7 Linux/Windows trading environment
• Conducted Disaster Recovery management and testing
• Monitored and manage the 24x7 operation of multiple high volumes Company s web sites to ensure highest stability, availability and customer experience
• Administration of RHEL and AS 3, 4, 5, 6 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues
• Administered multiple IBM machines (p7-770,p7-795,p6-570,p5-520, p5-550, p5-570 and p5-595) running AIX 5.3/6.1/7.1
• Server build and maintenance of system/core applications spread across AIX 5L/6.1/7.1 Servers
• Configured VIO server
• Worked on HP Unix
• Worked with Live Partition Mobility to perform migration from one frame to another
• Worked on storage migration EMC storage
• Good in documenting all the technical tasks
• Good experience in DNS and TCPIP
• Worked with shell scripting and patching
• Experience on WebSphere 5 & 6 administration
• Installed, configured and supported Web Sphere Application Server, IBM HTTP/ Apache Web Servers in AIX and Linux environments.
• InstalledSolarisand Linux created user logins, administering the system performance and monitoring user activities.
• Installed VERITAS volume manager and implemented various RAID levels, logical volume creation, mirroring and file systems
• Installation, configuration and maintenance DNS servers, Mail servers, NFS and NIS on SunSolaris servers
• Configuring distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
• Worked on Oracle database and application servers
• Worked with TSM backups and Tivoli monitoring on client side.
• Analyzed server hardware and application architecture information to design server migration/consolidation strategy
• Strong leadership and communication skills with the ability to drive issues to completion on an aggressive schedule
• Installed Peoplesoft application on AIX6.1. Built a database server, app server and web server for the peoplesoft environment.
• Performed archiving and backups using tar, pax, cpio, dd, restore, and backup commands, mksysb for root volume group backup and savevg for user created volume groups backup.
• Performed daily backups, (incremental /full backups) restoration of data using Tivoli. Upgrading TSM and configuring it on Client side.
• Responsible for servicing trouble-ticket requests, 3rd-party software installation in a homogeneous AIX 5.1/5.2/5.3/6.1 environments.
• Created and configured logical partitions (LPAR) on IBM systems using Hardware management console (HMC).
• Active participation in project planning and deployment

Confidential, Houston Texas

Linux/AIX System Administrator

Responsibilities:

• Worked as AIX System Admin with IBM P-series Model servers in an HACMP environment.
• 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
• Wrote shell scripts for automated installations, to extract logs.
• Installed, configured, and maintained WebLogic 11.x and Oracle 11g on Solaris &Redhat Linux.
• Creating, installing and configuring Zones, LDOMs in Sun Solaris 10using Jumpstart
• Experience with Red Hat build methodologies, performance tuning, memory management, server maintenance and troubleshooting
• Project lead of the Tivoli Monitoring Project. Configured and installed Tivoli Monitoring 6.2 on IBM's AIX server to monitor AIX operating system, WebSphere, SOA Applications
• Responsible for installation and maintenance of 5.1,5.2 AIX servers
• Installation of patches, packages on AIX, and Windows NT/2000 Servers.
• Adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments.
• Installation, Administration and configuration of LPAR’s with AIX 5L on p5 servers
• Experience of creating and installing standard LPAR and VIO client LPAR using HMC
• Installation, configuration and administration of IBM Web Sphere Application Server V4.0, on AIX along with DB2 UDB & IBM HTTP server with SSL for secure communication & providing technical support to users
• IBM RS/6000 SP System Software Maintenance AIX System Dump Generation and sending System Dump to AIX System Support Center.
• Installing configuring and supporting Cent OS / Red Hat Linux Container / virtual machines.
• Supporting LAMP and applications such as Wordpress Joomla
• Configuring and troubleshooting Postfix / Exim mail server. And Mysql databases
• Backup and restore of virtual machines
• Experience of configuring 4 nodes cluster with multiple RG configuration.
• Extensive working experience on LVM. Creating VG, LV and FS.
• Upgrading and updating TL, APAR and patches on AIX 5.2/5.3.
• Perform User Account management, data backups, and users’ logon support.
• Installation and configuration of NIM master server and clients.
• Creating lpp source and SPOT for client on NIM server.
• Experience of upgrading and updating p550 and p570 systems and devices firmware using HMC.
• Provided UNIX infrastructure, operations and support for IBM RS/ 26-M80) servers and pSeries servers running IBM AIX 4.3, 5.1, 5.2.

Confidential, Ann Arbor

Linux Support Engineer / System Administrator

Responsibilities:

• RHEL DEPLOYMENT /Support / PACKAGING
• Worked with RHEL 4,5 Deployment and Packaging/ Application Development.
• Compiled applications and their dependencies (different versions of gcc / python /mpcc etc).
• Porting applications for different flavors of Linux / Unix to Red Hat 5.
• Providing support to Red Hat Linux / Ubuntu Workstation /Servers / Advanced software’s for constituents of the school such as Department of Computational Medicine and Bioinformatics, North Campus Research Centre.
• Packaging bioinformatics applications into RPM’s
• Deployed RHEL 5 Includes installation, configuration, troubleshooting, patching / up gradation of the operating system, data backup, restore etc.
• Proficient in the use of environment modules on clusters and installing / configuring multiple versions / installations of applications.
• Day to day IT support for Windows / Linux Servers / Desktop Support and various application packages.
• Responsible for NIM installation, setting up NIM servers, clients, define the resources, Alternate Disk Migration with NIM.
• Creating lppsource and SPOT for client on NIM server. Installing OS on NIM clients using NIM Server.
• Experience as a Linux System Manager/administrator in the areas of RedHat Linux, OEL, Suse Linux, Sun Solaris, IBM AIX and Windows environment.
• Expertise in administration, patches, upgrading, configuration, performance tuning and troubleshooting of RedHat Linux 4/5, Sun Solaris 8/9/10.
• Defined virtual SCSI, virtual Ethernet adapters, virtual FC adapters and created VIO client adapters from HMC and mapped them.
• Performed planning, installation, configuration and maintenance of IBM HACMP V 5.1, 5.2, 5.3, 5.4, 5.5 and 6.1. Reduce planned downtime, Reduce unplanned downtime, Increase Maintenance availability.
• Creating /removing paging space, checking paging space usage and increase/decrease if required.
• Perform ODM and Powerpath drivers upgrade on VIO-Servers.
• Setup and Configured IBM AIX HACMP and GPFS on PSeries servers. Installed and configured Oracle 10g and 11g RAC.
• Managing various scripts to start up and shutdown databases and SAP systems.
• Installed and configured Sudo for users to access the root privileges.
• Decommissioned servers including VIO Clients and dedicated lpar.
• Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS).
• Provided support by 24x7 shift rotation basis and pager support.
• Applying patches, Hotfixes and updates, adding databses client drivers
• User and Group Administration, Data Sources Administration
• Scheduling and automation of client jobs
• Creating Shell scripts for automation / client requirements
• Client support and trouble shooting
• Maintenance of Windows 2003 Server / SQL server for office automation system
• RHEL 3 / Fedora Linux servers
• Initiated office automation and it infrastructure development activities which included in addition to the above the following activities
• Cyberoam UTM (Unified threat management) administration
• Campus wide network management