Sirisha Challa

acvksc@r.postjobfree.com

Senior WebSphere Administrator

732-***-****.

Summary:

● 7+ years of experience in IT industry inclusive of 5+ years of experience in Middleware Administrator using IBM WebSphere Application Server, IBM MQ Series on various platforms like UNIX, AIX, Solaris and Windows NT/2000/2003

● Experience in installation, configuration, deployment and management of Enterprise Applications in a clustered and non-clustered environment using

IBMWebSphereApplicationServer6.0/6.1/7.0/8.0.

● Expertise in Trouble shooting and Performance tuning using Resource analyzer and log analyzer using Tivoli Performance Viewer.

● Extensive experience in implementation of Workload Management (WLM) using cloning and clustering

techniques including Horizontal and Vertical Scaling for fail over and backup/recovery processes

● Worked as Administrator and On-Call Administrator for the production support and maintenance throughout the duration.

● Configured WebSphere resources including JDBC

providers, JDBC data sources, connection pooling, and Java Mail sessions.

● Expertise in JNDI, MQ Series, J2EE, JMS, DB2/UDB on various platforms.

● Worked on server side technologies like Java, Servlets, JSP, JDBC, EJB, Web Services, XML, and XSL with the Back end RDBMS Tools like SQLServer, Oracle,DB2

● Expert in UNIX Shell scripting for administration, maintenance and troubleshooting.

Experience in deploying J2EE components on WAS

6.1/7.0/8.x using WAS Admin Console,

wsadmin/Jython/JACL scripting.

● Experience in troubleshooting, applying patches and plug-in for WAS 6.1/7.0/8.x

Experience in webserver administration, which includes installation, configuration and troubleshooting of IBM HTTPserver1.3.x/2.0.x/6.0/6.1, iPlanet 5.x, Apache Webserver.

● Experience in planning, installation and administration of IBM MQSeries and websphere Portal server on various platforms like AIX, UNIX, Solaris, HP-UX, and

Windows NT/2000

● Configured and Secured Webserver interface, Session management,WebSphere resources, J2C resources,

connection factories and JMS resources in IBM

WebSphereWAS 6.1/7.0/8.x.

● Experienced in DNS, LDAP, FTP, Remote Access,

Security Management and System Troubleshooting skills. Education:

Master of ComputerApplications, Andhra University, India. TECHNICAL SKILLS:

Middleware : IBM WebSphere Application Server

8.5.x, 7.x/6.x/5.x, JBoss 4.x/6.4.x, Apache Tomcat. Languages : Shell, Jython, Java, JSP

Web Servers : Apache/IBM HTTP Server

Application Servers : IBM WebSphere 5.x, 6.x. 7.x, 8.x, JBoss 4.x/6.4.x, Tomcat

Operating Systems : AIX, Linux, Solaris, Windows

95/98/NT/2000/XP

Monitoring Tools : Tivoli Performance viewer, Wily Introscope

Utility Tools : IBM Web-based System Manager,

Ant, PuTTY

Scripting : Jython and Shell

PROFESSIONAL EXPERIENCE:

CSC, AT&T Project.

WebSphere Administrator.

Aug 2014-Till Date.

Responsibilities:

● Extensively supported for SOA environment for

BAU,Apple,Light Speed clusters in a Production

environment.

● Worked with SQL Queries for pulling the impact for the applications using the Conversation ids,Message ids and BAN etc.

● Familiarity working with Service bundles and Adapter Bundles like enable debugging for them and pulling the logs to check the issues.

● Involved in Deployments and Nightly bounces such as Bundle bounces and Adapter bounces as our daily

activities.

● Working in a 24x7 support team and supporting

OffShore teams during peak times

● On-call Support during off-peak hours on production enviornments, using SPLUNK, Nagios, Wily

Intrescope, T-leaf tools for monitoring purpose, and to check the logs.

● Using NX tool to logon to Virtual Servsers.

● Working on handling tickets for various Applicatios using Monitoring tools like Topaz,Nagios,Viz

Gems,etc and escalating to the heigher levels.

● Extensively involved in Creation of VDC’s,VApp’s, and VM’s in a Cloud Environment

● Attending in Priority 1 issues in a timely manner by providing the supported teams during the Off-peak

hours and escalating if needed.

● Installation, Configuration, Maintenance and

Troubleshooting of

IBMWebSphereApplicationServer7.0 on Linux

8.0/Windows 2003 Platform and migration to WAS 8.5

● Created and manage data source and database

connection pools

Managed performance tuning of WebServer, Web

Container, EJB Container and database connection

pool.

● Configured IBM HTTP Server for SSL configuration

● Configured clustering through deployment manager for load balancing and fail over functions.

Regence, Seattle, WA Aug

2013- JUL 2014.

WebSphere Application Server Administrator

Responsibilities:

● Installed, Configured and Administered IBM

WebSphere Application Server ND 8.5 on, IBM AIX

6.1.

● MaintainedWebSphereApplicationServer6.0 and HTTP Webservers server on AIX and Solaris.

● Created and managed data source and database

connection pools

Managed performance tuning of Webservers, Web

Container, EJB Container and database connection

pool.

● Extensively worked on subversion SVN.

● Configured the JDBC drivers and Data sources for application servers to test the application against various databases. Responsible for upgrading the

JDBC drivers.

● Configured IBM HTTP Server for SSL

● Implementing and maintenance of Workload

Management (WLM) using clustering/cloning.

● Java files developed by the Development Team were packaged as JAR, WAR and EAR files, and deployed

them to Test and Production environments.

● Implemented and administered Server Clusters on

multiple Nodes for workload and fail over

management.

● Involved in configuring the Web Directory access protocols like LDAP for different levels of access at the site.

● Have experience working with Tivoli Performance

Viewer and Wily Introscope.

● Involved in trouble shooting and Performance tuning using Resource analyzer and Log analyzer.

● Worked with Queue Manager(MQ).

● Deployed and configured both Horizontal and Vertical Messaging Queues.

● Handled user accounts and groups accounts, disks and file management system

Responsible for 24/7 maintenance of

J2EEapplicationonWebSphereApplicationServersin

development, test and production environments.

● Installed JDBC drivers and created the data sources and configured the parameters of the connection pool

● Installation and Configuration of

IBMWebSpherePortalServer5.1/6.x

Developed logical security application architecture integrating WebSphere Application Server, Sun ONE

Webservers, Integrity Site minder and implemented

Single Sign-On security.

● Wrote shell scripts for automation and scheduling tasks.

Environment:

IBMWebSphereApplicationServer8.5,WebSphere Portal

5.1/6.x,IBM DB2 9.7, AIX, Solaris IBM HTTP server6.1, Tivoli, Sun ONE webserver8.5

DuPont, Newark, DE May 2010-

Aug 2013

WebSphereApplicationServerAdministrator

Responsibilities:

● Installation, Configuration, Maintenance and

Troubleshooting of

IBMWebSphereApplicationServer7.0 on Linux

8.0/Windows 2003 Platform and migration to WAS 7.0

● Involved in complete infrastructure setup and

configuration which included WebSphere ND

7.0,WebSphere MQ 5.1/6.x and SiteMinder 6.0

Install Configuring WebSphere Plugins, Apache

Webserver and IBM HttpServer 2.0 in the Linux8.0

and windows 2003 Environment.

● Worked on administering IBM Websphere Data Power appliance.

● Configured Virtual Hosts, Web Applications, Web

Resources and JDBC drivers

● Configured WebSphere Application Server on multiple platforms for both horizontal and vertical scaling

● Configured Clusters and Instances for improved

availability and fail over capability

● Responsible for deploying enterprise applications from Admin console and enabling security for admin

console and application components

● Involved in setting up SSL.

● Involved in working with Pure Applications.

● Trouble shooting various issues during mixed cell stress testing.

● Responsible for deploying enterprise applications from Admin console and enabling security using LDAP and LTPA from admin console and application components on both Distributed platforms.

● Prepared documentation to describe support

infrastructure build and operations procedure.

● Created IBM Problem Management Records (PMR) to

report WebSphere Application Server problems.

Analyzed log files to solve problems using debugging tools like Log Analyzer, First Failure Data Capture Tool and Collector Tool.

● Involved in trouble shooting and Performance tuning using Wily Introscope.

● Involved in developing complex scripts to automate batch jobs.

● Involved in Load and Integration testing of J2EE applications on WebSphere Application Server for

distributed platforms.

● Configured clustering through deployment manager for load balancing and fail over functions.

● Configured the web-server interfaces (plug-in file), session management, virtual hosts, sources, HTTP

transports for Application Server instances and

applications.

Implemented creation of Server groups and clusters in WebSphere Application server.

● Configured WebSphere Application server security through Custom Registry and LDAP.

● Installing, Configuring and maintenance of MQSeries applications versions 5.x, Applying the CSD patches, Integrating with WebSphere, Creating Q managers,

local queues, Configuring the clustering of Q

managers, Channels, Troubleshooting.

● Sound knowledge in configuring JMS Provides using WebSphere MQ.

Well versed with Shell Scripts for Unix System

backups monthly, yearly and annual.

● Implemented standard backup procedures for both

applications DB and WAS Administration DB.

● Involved in working with Pure Applications.

● Problem determination using local error logs and by running user traces and service traces.

● Assembled and Deployed the application in staging, in productions, following change management practices and 24/7 support.

● Used SCM tools Clear Case for software versioning and deployments.

Written some shell/Jacl /Jython scripts to automate the process like node federation for distributed platforms. Environment: IBMWebSphereApplicationServer8.0x, IBM WebSphere MQ, IBM DB2, UNIX, Linux, windows 2003,

Apache Webserver, Internet Information Services (IIS) 5.0, IBM Directory Server, Http webserver6.0, TPV, Java, HTML

Wachovia Bank, Charlotte, NC.

Sep 2007- April 2010

WebSphere ApplicationServer Administrator

Responsibilities:

● Installed, configured, administered WebSphere

Application ServerND 6.0/6.1 on AIX for multiple

high profile projects.

● Administered, configured, tuned, and troubleshoot WebSphere in a clustered environment on AIX.

● Responsible for deploying enterprise applications from Admin console and enabling security using LTPA and LDAP for admin console and application components

on AIX.

● Configured IHS Webserver, Site minder to work with WAS.

● Configured WebSphere resources like JDBC providers, JDBC data sources,

● Connection pooling, Implemented creation of Server groups and clusters in WebSphere Application Server. Supported the whole environment configuration and

also applications deployed.

Investigated, troubleshot and resolved application and configuration issues.

● Wrote Shell scripts to monitor installed enterprise applications and to get information from the logs and database in the required format and other daily

activities and jobs.

● Used WebSphere Admin Console and

wsadmin/JACL/perl scripting to install enterprise

EAR, WAR files or for hot deployment.

● Used Shell Scripts them for build maintenance and automatic deployment.

● Troubleshot various problems at QA, Staging and

Production phases.

● Monitored Applications and WAS performance

through Tivoli Performance Viewer and tuned the

system caching, queuing, JVM parameters, DB

Connection Pooling.

● Knowledge of Servlets, JSP, EJB development and

deployment concepts and database skills.

● Involved in installingWebSphere portal 5.1.x on Linux and AIX Platforms with Web Content Management.

● Involved in installing the fix patches for WebSphere Portal Server.

● Involved in deploying the portlets over cultured environment.

● Involved in creating the cultures for WebSphere

Portalserver.

● Involved in Configuring SSL for high security of web application.

● On-call Production Support (24x7).

Environment: IBMWebSphereApplicationServer5.1.x/ 6.x, IBM WebSphere Portal 5.x, IBM DB2, Oracle 9.i, AIX, Tivoli, Sun ONE webserver6.1, Integrity Site minder PolicyServer6.0.

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