OBJECTIVE

• To strive for a position in you're Organization by using my experience and expertise for growth - in terms of value addition, noledge and learning; thereby striving to optimize a goal congruent behavior in the organization, wif a balanced trade-off between technical skills and self-developed attitude to elevate self and the organization into attaining higher and profitable peaks.

SUMMARY

• 7 years of experience in the Information Technology industry as UNIX(Solaris/Linux) Professional wif hands on experience in wide range of concepts and technologies.
• Experience in imaging and maintaining of multiple Operating Systems including SOLARIS (8/9/10), LINUX RHEL (3/4/5/6), using the Jumpstart, Kickstart Utilities.
• Experience in installing, configuring, managing the LDAP servers which act as Autantication server for UNIX environment.
• Configured E-mail system using Postfix wif IMAP. Integrated the email system wif LDAP (Light weight Directory Access Protocol) directory services for users.
• Expertise in System Administration, Installation, Configuration, troubleshooting and Performance tuning of Red Hat Enterprise Linux.
• Good expertise wif TCP/IP, subnets, security, maintenance of user accounts, configuration of various servers (including DNS, NIS, NFS, Jumpstart and SendMail wif POP & IMAP) wif Firewall protection.
• Experienced managing packages using RPM, YUM and YaST.
• Experienced supporting and deploying web application servers such as BEA WebLogic server, Red Hat JBoss server, Apache Tomcat server, IBM WebSphere, Apache HTTPD server in production environment.
• Experienced in configuring and maintaining DNS (BIND) servers for the corporate Intranet users.
• Experienced in installing and configuring MTAs: qmail and PostOffice mail servers.
• Implementation of network security using tcpdump, SNORT, NMAP, MRTG, Nessus and Ethereal tools.
• Extensive experience in creating new filesystems, mounting file systems and umounting file systems, usage and load of the system & performance monitoring.
• Developed automated scripts/system monitoring tools/ testing tools using korn shell scripting, Perl
• Proficient in using different remote login utilities such as SSH etc.
• Experienced in configuration & maintaining Sun Cluster 3.2, configuring the TSM (Tivoli Server Management) backups on the server.
• Configured & maintained network and naming servers like NIS, NIS+, DNS, DHCP.
• Experience wif LDOMs (Logical Domains) on the server architectures such as T1000,T5140, T5240, T5440, Containers, ZFS, on the server architectures such as v240, v440, v480, v490, M4000, T5120 and DTrace
• Has performed DBA activities such as Oracle installation, database creation, maintenance and database backup and recovery on SUN hardware
• Experience in building Oracle 10g RAC systems on a cluster.
• Experience in working on different network technologies such as LAN/WAN.
• Experienced in implementing highly scalable, redundant and secure systems architecture including load balancer, Network Appliance storage system and Sybase back end.
• Installed and configured Application servers Weblogic, Websphere, Jboss, Tomcat, Apache, iplanet on the UNIX platforms.
• Installed Connect Direct, XCOM and FTP file transfer processes between different platforms.
• Strong technical background includes major UNIX hardware and operating environments as well as supporting skills like programming product documentation network architecture & trouble shooting.
• Provided production support in an on-call rotation in a 24x7 environment.
• Strong interpersonal, verbal and writing skills. Ability to perform as a team player.
• Strong Customer Service attitude wif a sense of urgency and accountability.

TECHNICAL SKILLS

Operating Systems: RHEL 4/5/6 Linux, VMware ESX, ESXI 4.1/5, MS Win Server NT 2000/2003/2008 , Solaris 8/9/10

Scripting Languages: UNIX Shell, Awk, Perl, Bourne, Python, PHP

Applications: Visio, Project, SQL, Adobe Acrobat, Photoshop, Microsoft Office 2000/2003/2007/2010 - Word, Excel, Powerpoint, Outlook, Nagios Monitoring, Watsup Glod, Symantec and McAfee corporate antivirus suite.

Networking Protocols: TCP/IP, DHCP, DNS, FTP, HTTP, HTTPS, SSH, Ethernet 10/100/1000, NFS, CIFS, NIS, SSH, LAN, WAN

Tape Libraries: Sun StorEdge L20/L40/L60, L180 and Storagetek’s 9840 A/B/C Fibrechannel

Backup: VeritasNetbackup 4.5/6.0, TSM (Tivoli Server Management), Solstice DiskSuite 4.1/4.2, MsBackup, Ufsdump, Ufsrestore, Sysback v4.2

Web & Application Servers: Covalent Apache, Tomcat, HTTP, IIS 3.0/4.0, Web Server 5.1/6.0, Jakarta, Hadoop, Beehive, Web Logic Server 8.1 9.2 10 MP 1 11.1 11.3 12 c, Web Sphere Application Server 5.0, Jboss 4.x. Glassfish

Programming Languages: C, C++, Java, sql, PL/sql

Databases: Oracle 11g/10g/9, Oracle RAC systems, Sybase, My SQL, MS Access, MS SQL, DB2

Networking: VMware ESX Server 2.5/3.0.1, VMware Vcenter 3/4/5.x VMware Virtual Centre 1.2/2.0, Xen

Storage: Sun Cluster 3.2, VERITAS Netback up 6.0, VERITAS Storage Foundation Suite, Solaris Volume Manager, send mail, EMC related S/W, Hitachi Sun storage

PROFESSIONAL EXPERIENCE

Senior Systems Administrator

Confidential, New York, NY

Responsibilities:

• Imaging the Production, Development, Test environment servers and checking the performance of the server depending on the applications running on the server.
• Support of Solaris 8/9/10 systems, Red Hat Enterprise Linux 4/5/6 administration, operational support and problem resolution for server systems.
• Patching Red Hat Enterprise Linux servers using Red Hat Satellite.
• Support servers hosting critical Asset Management applications like Charles River, Bloomberg AIM (Asset and Investment Manager), Quantitative Portfolio Management (QPM), Quants Trading System (QTS), Eagle - Pace, Murex etc.
• Installing the Red Hat Enterprise Linux Server release 5.x/6.x on different architecture of servers to support the Weblogic and other Asset Management Applications for different projects.
• File systems, Device and Services Management on the Unix (Solaris/Linux) servers.
• Perform daily functions, such as establishing new accounts, creating and resetting passwords, developing scripts, performing system backups and recovery, and installing software patches, packages and updates on Unix environments (Solaris/Linux).
• Provide 24X7 support to Production servers teaming wif application support and work towards resolution.
• Handling issues regarding storage tools(VxVM/ASM/LVM and SVM Disk Suite)
• Install and configure the Veritas cluster server and connect multiple servers to the Cluster. Including and excluding the controllers and disks from the disk group configuration based on the requirements.
• Writing and modifying Shell Scripts (Perl, ksh) & cron to perform automated administration task.
• Monitoring the performance of the servers wif different OS such as Solaris and Linux operating environments.
• Analyzing the problems on the server side and work on the remediation
• Increase the size of the existing file system by using the meta utilities.
• Performance tuning, resource and device management, troubleshooting wif different OS such as Solaris and Linux Operating environments.
• Work on day-to-day Service now Incidents, Changes and Requests pertaining to server issues.

Senior Server Administrator

Confidential, New York, NY

Responsibilities:

• Sr. Server Administrator in a large scale environment primarily managing mid-range to high-end Sun Solaris, Red Hat Linux systems in support of development activities.
• Support of Solaris 8/9/10 systems, RHEL 3/4/5, SLES 9/10 Linux administration, operational support and problem resolution for server systems
• Experience in working on RHEL GFS where a cluster of servers share a common pool.
• Installed and configured the TSM 5.5 (Tivoli Server Management) on the client side.
• Performed the disk recovery from a crash and worked on the restoring of contents by using the TSM 5.5 on the client side (Tivoli Server Management) backups.
• Experience in performing Rac, deploy, and support using Oracle Rac on Solaris 9/10.
• Creating new file systems on the Unix (Solaris/Linux) servers.
• Adding packages & patches for Redhat Linux servers based on the requirements.
• Configured and administered Apache Web, VSFTPD services and JBoss.
• Daily Linux troubleshooting related to issues wif LDAP, DHCP, DNS and qmail platform.
• Supported Unix/Linux servers running Oracle and MySQL databases.
• Performed all System Administration tasks like cron jobs, installing packages, and patches.
• Configured and administered Apache Web, VSFTPD services and JBoss.
• Build and configuration of new servers for different application development projects.
• Testing and upgrading production, development and test Linux and Solaris servers.
• Planning and implementing the configuration changes to the servers adhering wif ITIL change management process.
• Configured virtual IP using the same physical NIC card available on the server.

Senior Systems Administrator

Confidential, New York, NY

Responsibilities:

• Installation, configuration of RHEL (Jumpstart /Kickstart Installations) for different projects.
• Performing Sun baseline patching and kernel upgradation.
• Established procedure for daily, weekly, monthly backups, tape rotation and offsite storage .
• Worked wif Virtualization Technologies: VMware & XEN.
• Monitored and checked alerts in Tivoli Netcool monitoring software.
• Writing Shell/Perl Scripts for managing day-to-day transactions & for automation of routine tasks.
• Troubleshooting various problems related to Veritas Volume Manager (VxVM) in initializing, replacing, mirroring, encapsulating and removing disk devices on various Production Boxes.
• Monitoring the System activity, Performance, Resource utilization.
• Daily Linux troubleshooting related to issues wif LDAP, DHCP, DNS and qmail platform.
• Dynamic reconfiguration of tape drives to the server for ensuring quick and consistent backups.
• Supported Unix/Linux servers running Oracle and MySQL databases.
• Involved in new application and environment architecture including DMZ (Dematerialized Zone) architecture, closely worked wif architects. Involved in troubleshooting various issues in development, testing and production environments. Resolving production down issues.
• Administrating User and Group management for several groups in the organization and taking care of various permissions on the resources for each group. Package and patch management as necessary.
• Automating logs and other properties for the application using shell script, python / jython script and WLST script.
• Configuring and maintaining tools like Appsight, Willy Introscope, Tripwire, IBM Tivoli, IBM DataPower etc for monitoring the performance of application and the servers.

Weblogic/ System Administrator

Confidential, New York, NY

Responsibilities:

• Performed WebLogic Server administration tasks such as Installation, Configuration, Monitoring, Performance Tuning and Load balancing.
• Involved in WebLogic 9.2 to WebLogic 10.1 upgrade.
• Installed and configured Apache HTTP server 2.x to work wif WebLogic Server 9.2/10.1.
• Created bash and ksh scripts to monitor domains, recycle clusters, monitor disk space, monitor number of Apache connections and ran them as cronjobs.
• Worked on Node Clustered Configuration of Solaris servers and SAN configuration
• Deployment and troubleshooting of JAR, WAR and EAR applications in Clustered environment.
• Configured and administered JDBC Connection Pools/Data Sources/Multi Pools on WebLogic Server 8.x/9.x/10.x.
• Setting up VSFTPD, NFS and Samba servers for file sharing.
• Deployment of MySQL database platforms on various production environments.
• Performing kernel and database configuration optimization such dat it limits me/O resource utilization on disks.
• Involved in the yearly maintenance patching for both SAN and NAS connected Linux servers.
• Monitoring servers, applications/Security and Performance.
• Provided frontline support to the service ticket requests like login failures, account creation, process management, restarting the apache, DNS services, resolve the SSH login problems and space issues.
• Troubleshooting Unix/Linux network and security related issues.
• Installed and Configured VMware for weblogic installation.
• Configured and setup Secure Sockets Layers (SSL) for data encryption and client autantication.
• Used configuration wizard and WLST scripts to create and manage WebLogic domains.
• Developed scripts to monitor JDBC Connection Pool Status, JVM Heap Size, JMS Messages in the Destination queues in the Production environment..
• Provided active support for Load/Stress Testing, troubleshooting and Performance tuning.
• Log files analysis for troubleshooting to resolve issues using scripts.
• Responsible for performance tuning for WebLogic Server JVMs.
• Configured the WebLogic server wif iPlanet Web Server through WebLogic’s proxy plug-in.
• Removing/Updating deployed applications wifin the application environment.
• Configured and administered Weblogic server wif Oracle9i database.
• Deployed the applications on multiple Weblogic Server instances and maintained Load balancing, High availability and Fail over for the servers.

Student Assistant

Confidential, Chicago, IL

Responsibilities:

• Maintain and build database for Undergraduate/Graduate students of Chemical Engineering Department using MS Access.
• Responsible for office support including word processing, creating brochures, newsletters and other office literature.
• Schedule appointments between professors and students.
• As a halp desk associate halp students and visitors wif information they are looking for.
• Sort out letters and papers for professors and associates working in chemical engineering department.
• Responsible for taking up all incoming calls to the department and route to professors and associates during their open visiting hours during weekdays.