Manager Server
Resume:
Prasana Korumilli
: ************.*********@*****.***
Work Authorization: H1B
Professional Summary:
Over 10 years of IT experience in the field of E-Business, middleware technologies Architecture, designing and implementing Large-scale High-Volume Enterprise systems based on WebSphere (Application Server, Portal, MQ), IBM HTTP Server, WebLogic, Jboss, OBIEE on variety of Industry needs.
Experience in designing topologies and recommending architecture choices
Created design documents that ensures consistency in Development across the IT organization
Participate in meetings with Management/Customers on IT architecture to ensure that the IT organization’s IT solutions are built within a consistent framework.
Expert on preparation of architecture diagrams of web applications that are hosted on WebSphere application Server. This contains the complete 3-tier architecture diagrams using Visio.
Experience in Installation, Configuration and administration of IBM WebSphere Application Server 5.x/6.x/7.x/8.5 WebSphere Portal Server 6.1/7.0/8.5, CA Site Minder, LDAP.
Experience with Web Administration, including Installation and Configuration of IBM HTTP Servers v6.x/7.0/8.0, Apache & IIS Web Servers
Implemented clustering in WebSphere Application Server 6.1/7.0/8.5 using horizontal and vertical clustering to provide scalable and highly available WebSphere environment
Configured database resources like JDBC Providers, Data sources, and security resources like JAAS authentication (J2C) aliases in order to provide connectivity to Oracle, DB2,Sybase databases
Implemented Workload Management (WLM) methodology and fail over mechanisms including horizontal and vertical clustering, HTTP server fail over and Deployment Manager and Node agent fail over
Troubleshooting Admin Server start-up issues, Java code defects after deployment and class path issues by checking the JVM logs, plug-in logs and the web server logs
Configured JDBC Providers, Virtual Host, Web Server Plug-in and Session Management technique
Involved in securing the J2EE applications by implementing Single Sign-On by using LTPA
Experience in Creating SSL Certificates using IKEYMAN
Experience in using GC Collector and analyzed GC verbose logs to monitor and assess the JVM runtime heap usage
Configured global security on WebSphere Application Server using IBM Tivoli Directory Server
Good knowledge in configuring High Availability Manager for failover & recovery techniques
Expertise in using IBM Support Assistant (ISA) plugin’s - MDD4J, Thread Analyzer, IBM Thread and Monitor Dump Analyzer
Experience in applying Fix packs/Refresh packs/Cumulative packs for WAS using Update Installer and Installation Manager
Experience on working with Akamai team on implementation of Akamai Site-Shield for web applications.
WAS administration using customizing wsadmin JACL / Jython Script.
Experience in developing UNIX Shell start/stop scripts Web sphere application server
Experience in creation of cron jobs and scheduling jobs according to client requirement
Expertise in supporting enterprise based distributed applications over a wide range of production environments on a 24/7 on-call rotation basis for high volume, secure transactions and Web services
Complete knowledge on complete system integration. Web Services, network architecture and its implementation.
WebSphere Portal Server 6.1/7.0/8.5 (5+ Years)
Experience in capacity planning for WebSphere Portal Server instances for projects/web applications hosted on WebSphere Portal Server.
Experience on preparation of WebSphere Portal architecture diagrams using Microsoft Vision. The visio diagram contains complete architecture – Front end webserver to application server to back end database server/LDAP and also the WCM/Oracle Content management.
Involved on Client/Management decision making meetings on finalizing architecture of new projects.
Expertise in Installation, Configuration and Administration of IBM WebSphere Portal Server 6.1, 7.0, 8.5.
Installed Portal Clusters using horizontal & vertical clustering and deployed Portal Applications and Created Virtual Portals.
Experienced in Deployment of Themes, Skins, Portlets, Pages, URL mappings, Labels, Virtual portals using Portal Admin GUI.
Experienced on Portal configuration export using XMLAccess.
Experience in deploying, maintaining and troubleshooting of applications and portlets in highly available, load balanced production environments.
Worked on creating and administrating virtual portals
Configure the security for portal server using LDAP user authentication
Implemented single-sign-on (SSO)service
Implemented high availability and work load balancing solutions using vertical and horizontal scaling.
Technical Skills:
Operating Systems
RHEL 4.x/5.x/6.x, Solaris10/9/8/7, Windows XP/2012/2008,
AIX 5.x/4.x
Application Server
IBM WebSphere 8.0/7.0/6.x/5.x, WebSphere Portal 8.5/7.0/6.1, OBIEE 11g, WebSphere MQ 5.3/6.0/7.5, Jboss EAP 6.4
Web Servers
IBM HTTP Server v6.x/7.0/8.0, Apache 2.x, Tomcat 6.0/7.0, Microsoft IIS 4.0/5.0, I planet
Technologies
JMS, EJB, HTML, JDBC, XML, ODBC, RMI
Programming Languages
Java, COBOL, SQL, PL/SQL, C, C++
Scripts
Shell, JACL, JYTHON, HTML, XML,REXX
Development /Build Tools
RAD, ANT, Eclipse, WSAD 5.1
Database
DB2, ORACLE10g/9i/8.0/7.x, MYSQLServer 6.5/7.0, Sybase
Networking / Protocols
TCP/IP, HTTP/HTTPS, FTP, SMTP, SSH, RMI/IIOP
Monitoring / Other Tools
Hobbit, Xymon, CA SiteMinder WebAgent, Control-M Agent, Endevor, Xpedite, CA-JobTrac
Change Management
ServiceNow, BMC Remedy, iService
Education:
Bachelors of Technology (B.Tech) in Electrical and Electronics Engineering.
Professional Experience:
Company: Natsoft Corporation
Client: KAR Auction Services, IN Nov ’ 16 – Till date
Senior WebSphere & Portal Administrator
Responsibilities:
Lead project meetings on gathering build requirements/estimates.
WebSphere/Portal architecture – Design, plan, install and configure
Scheduled meetings with offshore, client team and discuss on open incident tickets and assist team to resolve it
Prepared project plan on WebSphere Portal & WCM V7.0.0.2 CF23 upgrade to V7.0.0.30 and performed portal patching in non-production environment – Dev/Test/Stage and Production environments.
Perform deployments of war/ear/themes in lower environments – Dev, Test and Stage environments.
Create the Web Content Syndication and Subscriber pair to syndicate/publish content from Authoring to Dev, Dev to Test, Test to Stage and Stage to Production environments.
Provide WCM library access permissions to Application Developers.
Fix WCM syndication issues if any during the WCM syndication process.
Worked with IBM MQ/MB teams on the migration from Linux to AIX.
Installation, configuration and Administration – Clustering & High Availability of Jboss EAP 6.4
Upgraded ILMT from version 7.2 to 9.2. Performed analysis on new architecture requirements and worked with team on preparing the planning documents for the upgrade.
Work on Proxypass configuration on apache webservers
Lead Risk Remediation process and provided solutions for vulnerabilities – Cross Scripting missing header, Clickjacking x-frame, No Http only flag, Default server files found on webserver, 404 errors, etc reported by security team on WAS/Portal platform.
Troubleshoot production issues, lead the conference call and work with other teams – Application, Network and Database to fix the issue.
Installed IBM Support Assistance tool on my local machine and accessed Thread Dump Analyser, Memory Analyzer, PMAT, etc to find the root cause analysis of the issue. And reported Application team, Management on root cause of the issue.
Xymon Monitoring – worked with IT Support team on installed xymon agent on WAS/Portal servers and updated alerts.cfg, analysis.cfg files to monitor WAS/Portal alerts on slow response time, memory, http alerts, disk space, ports, DB connection count, LDAP errors and other alerts.
Support Weekend Monthly Release (deployments) and Monthly Production Maintenance activities.
Attend CCAB meetings, Pre-Deployment meetings and weekly Maintenance window meetings.
Create change/incidents tickets and submit it for approvals
Open PMR with IBM WebSphere/Portal team, follow-up with IBM and implement it to make sure the reported issue is resolved.
Environment: WebSphere Application Server ND 7.0, WebSphere Portal 7.0, Portal WebContent Management, IBM HTTP Server, AIX, Apache 2.x, ILMT 9.2, Jython, ServiceNow
Company: Natsoft Corporation
Client: United States Department of Agriculture, MO Feb ’ 14 – Nov’ 16
Senior WebSphere & Portal Administrator
Responsibilities:
Created high level design and detailed design from system requirements.
Created project plan for the WebSphere Portal Server/WebSphere Application Server project design, integration of web services.
Lead project meetings on discussions on gathering of build requirements/estimates.
Scheduled team meetings with Application Development team/Middleware team/database team on initial discussions on new project Architecture and prepared Visio diagrams.
Installed and configured WebSphere Network Deployment Manager 8.5, WebSphere Portal 8.5 on RHEL.
Installed horizontal & vertical clustering and deployed web/portal Applications.
Created and federated profiles to the Deployment Manager using both Profile Management tool and also automated the process using manage profiles and addnode command.
Installed and configured IBM HTTP Server 7.0/8.5, WebServers, plugins and configured SSL for the WebServer and plugin communications.
Installed, configured, deployed and managed enterprise application.
Installed application server clustering for high availability and load balancing.
Deployed web and enterprise applications on application servers – WebSphere Application Server ND, WebSphere Portal Server.
Performed Portal configuration to a db2 server, Federated LDAP for security using Configuration Engine scripts and also using Configuration Wizard tool in Portal 8.5.
Deployed Themes & Skins, Portlets & Portlet Applications, created portal pages and assigned portlets to the portal pages.
Used WebDAV to extract themes from portal file system, updated themes and imported it portal file system.
Created new portal pages, wikis, blogs, added portlets to a portal pages
Worked on XML access configuration to export/import portal configurations
Deployed war files, created portal page, added portlet to a page using XML access scripts
Used Release builder tool to manage and deploy changes.
Configured WebSphere resources like JDBC providers, JDBC data sources and connection pooling and tuning it and monitoring it using Tivoli Performance viewer by enabling PMI.
Configured Global Security on WebSphere using IBM Tivoli Directory Server and secured the admin console.
Installed CA SiteMinder web agent version 12.5 for authentication for web applications and worked with CA eAuth team and configured SiteMinder web agent.
Applied in place upgrade of the SiteMinder web agent to version 12.51 fix pack.
Configured Oracle UCM on Portal Server. Worked with Oracle stellent team on troubleshooting issues on publishing.
Worked with Oracle team on stellent upgrade from Oracle WebCenter Content 7.5 to 10g. Performed load testing, tweaked JVM parameters, adapterconfig.xml file that contains oracle web content parameters to improve performance.
Troubleshoot problems on the various environments involving the integrations of WebSphere, IBM HTTP Server and ldap.
Job involves configuring Websphere JVM clusters, deployed Java/J2EE applications in Development, Pre-production and Production environments, troubleshooting the issues of Websphere application server, managing the applications deployed.
Installed and Configured WebSphere MQ 7.5
Installation, Creation and Configuration of WMQ Objects like Qmgrs, Queues and Channels.
Configured WebSphere MQ Connection Factories and Queue Destinations for connecting applications on WebSphere to MQ.
Worked with Akamai team on setting up Akamai SiteShield implementation (Akamai IPs/CIDR blocks) to provide additional security for web applications. Akamai SiteShield is implemented to protects web applications from hacking, degrading application performance and to cache application data by configuring TTL settings in Akamai Luna Control.
Worked with Akamai team / Firewall team on setting up Akamai SiteShield for USDA web applications like – Forest Service, Farm Service Agency, NRCS, FSIS etc.
Monitored Akamai Luna Control and analysed web application performance.
Used Tivoli Performance viewer, CA Wily Introscope, Xymon Monitoring tolls for tuning JVM heap size, data base connection pool size, CPU, Web Container threads.
Active involvement in monitoring server performance, network traffic to reduce performance bottleneck.
Performed load testing and tuned the Oracle jdbc connection pool, Web container threads and database connections on Portal environment.
Upgraded Oracle database 11g release 2 (11.2.0.3) JDBC drivers to improve the performance.
Implemented simple to complex redirects / rewrite rules on IBM HTTP Server in Dev, Pre-prod and Production environments.
Taken initiative on leading WebSphere Application team on ACE load balancer to F5 upgrade in all environments. Prepared task check list, scheduled meetings with network team and implemented the change.
Installed and configured OBIEE 11.1.1.9 and Oracle WebLogic 11g on RHEL OS.
Worked with Development teams, Gathered requirements and implemented Rewrite Rules on NAS mount point in Dev, Pre-prod to Production environments.
Automated configuration, deployment using Jython scripts using AdminConfig, AdminApp, AdminControl and AdminTask tasks.
Integrated WebSphere Application Server, Portal server with webservers. Worked with Network/Firewall team and submitted required VIP requests, firewall requests for new web application configuration.
Used BMC Remedy – IT Service Management Suite and followed incident/change management to create tasks at enterprise level for any production deployments or for any maintenance activities.
Participated in team meetings and management meetings to resolve issues related to the various environments.
Scheduled meeting with Customer on discussion of architecture diagrams for WebSphere Application/Portal server that includes all components – backend database servers, SiteMinder webagent. Prepared Microsoft visio architecture diagrams and presented it to client.
Providing guidance and assistance to the customer as needed.
Involved in 24/7 On-Call support for all the Critical applications (Production Environment) supported by the team.
Environment: WAS ND 8.5, 7.0, WebSphere Portal 8.5,7.0,6.1, IBM HTTP Server, WebSphere MQ 7.5, Apache, OBIEE, Oracle WebLogic 11g, RHEL 5.x/6.x, AIX 5.2/6.1 and Sun Solaris v9/10
Company: SV Tech Inc
Client : United States Department of Agriculture, MO Dec ’ 12 – Jan ’14
Senior WebSphere & Portal Administrator
Responsibilities:
Installed and configured IBM WebSphere Application Server Network Deployment Manager 7.0 on Linux.
Installed Application Clusters using horizontal & vertical clustering.
Installed and configured IBM HTTP Server 7.x, WebServers, plugins for the WebServer and plugin communications.
Installed, configured and administered WebSphere portal 6.1 on RHEL 5.x OS.
Installed Portal Clusters using horizontal & vertical clustering, deployed Portal Applications and created Virtual Portals.
Installed and configured CA Siteminder webagent on WebServers.
Configured admin console security on WebSphere by creating users with various roles to access the WebSphere admin console – users and groups in ldap and added them as WebSphere Console Groups.
Installed, configured and administered IBM’s Web Content Management (WCM) component in WebSphere portal 6.1/7.0 on UNIX, Windows 2003/2008 environments.
Worked with developers in various stages of development and testing and taking the application from DEV to PRE-PROD and PROD environments.
Worked on Oracle stellent configuration - Oracle WebCenter Content 7.5 on Portal server for publishing files.
Facilitated performance monitoring of WAS V7.0 and J2EE applications, using Tivoli Performance Viewer.
Responsible for deploying applications on the cluster and setting up the environment.
Troubleshoot problems on the various environments involving the integrations of WebSphere, IBM HTTP Server, WebServers and ldap.
Opened Problem Management Records (PMR) with IBM customer support for all critical issues unresolved by the team.
Participated in team meetings and management meetings
Involved in opening and working on PMR’s with IBM to solve various issues related to the environment. Enabled traces as various traces and taking thread dumps.
Was responsible for documenting the various procedures involved in the day to day maintenance of the various environments.
Involved in 24/7 On-Call support for all the Critical applications supported by the team.
Environment: WAS ND 7.0/6.1, WebSphere Portal 6.1, Apache, IBM Http Server, RHEL 5.x, Windows 2008, IIS 7.0, CA SiteMinder WebAgent
Company: Accenture
Client: Express Scripts Inc., MO Jan ’ 11 – Nov ’ 12
WebSphere / Portal Administrator
Responsibilities:
Installed, configured, administered WebSphere Application Server ND 7.0 on Linux and AIX for multiple high profile projects.
Installed, Configured WebSphere Portal Server 6.1.
Configured the WebServer interfaces (plugin file), session management, virtual hosts, datasources, HTTP transports for Application Server instances and applications.
Configured WebSphere resources like JDBC providers, JDBC data sources, connection pooling, and Java Mail sessions
Installed LDAP (ITDS) and configured peer to peer replication.
Package, build, Integrate and deploy Enterprise J2EE applications on WebSphere 7.0 that involves EAR (Enterprise Archive) and WAR (Web ARchive) files.
Supported the whole environment configuration and also application deployement.
Investigated, troubleshot and resolved application and configuration issues.
Used existing wsadmin Jython scripts to install enterprise EAR, WAR files or for hot deployment.
Upgraded Applications with various patch files (JSPs, Class files, changing various properties and property files and other configurations).
Troubleshot various problems at QA, Staging and Production phases.
Monitored Applications and WebSphere Application Server performance through Tivoli Performance Viewer and tuned the system – caching, queuing, JVM parameters, DB Connection Pooling.
Established Application-specific parameters and definitions.
Knowledge of Java Servlets, JSP, EJB development and deployment concepts and database skills.
Performed Application-data backup & recovery, local backup/restoration of the WebSphere Environment – configurations and applications.
Responsible for establishing Single sign-on (SSO) between the WebSphere application server, the portal server and all the collaboration components.
Responsible of preparation of Microsoft visio diagrams of overall application/project architecture and represent Accenture on client meetings with Express Scripts.
On-call Production Support (24x7).
Environment: IBM WebSphere Application Server ND 7.0, Portal Server 6.1, IBM HTTPServer, RHEL 4/5, AIX, IBM Tivoli Directory Server 6.1, CA SiteMinder, Oracle, DB2, MS SQL Server
Company: Accenture
Client: HighMark, PA Jan ’ 10 – Dec ’ 10
WebSphere Administrator
Responsibilities:
Installed, configured, administered, troubleshot, tuned WAS 6.0 Network Deployment on Linux, AIX, Solaris platforms for multiple high profile projects
Installation, configuration and administration of IBM WebSphere Application Server 6.0/6.1 and IBM HTTP Server 6.0/6.1
Deployed application ears on WebSphere Application Server Network Deployment in QA, Staging and Production environments on a daily basis and troubleshot various configuration and application issues
Configuration of Virtual Hosts, Web Applications, Web Resources and JDBC drivers.
Administered, configured, tuned, and troubleshot WebSphere in a clustered environment on Solaris/Aix.
Generated core dumps/heap dumps to check for the system objects using IBM Heap analyzer
Administration of connection between WebSphere and WebServer using WebServer plugin.
Installed WebSphere MQ 6.0 and Created queue and Channels.
Configured MQ Objects within the WebSphere Application Environment.
Created and Modified queue managers and created and modified queue manager objects as queue, channels, and Name lists.
Set-up the Triggering and set up the security for Users/Groups.
Resolved Channel issues and Cluster issues look and diagnose the problem from various logs i.e. MQ error logs.
Applied WebSphere application server fix packs every six months.
Used Log Analyzer and Tracing to troubleshoot WebSphere Application Server.
Performed WebSphere Configuration backup and restoration.
Used Resource Analyzer to measure the performance and efficiency of the application resources and WebSphere runtime resources.
Managed and Administered Workloads, Server Groups and Clones in WebSphere Application Server. .
Involved in installing the fix packs for WebSphere Portal Server.
Excellent knowledge on TCP/IP, RMI/IIOP and HTTP protocols.
Experienced in DNS, FTP, Remote Access, Security Management and System Troubleshooting skills.
Troubleshot and successfully resolved LDAP, Siteminder, WAS, code, data issues.
Configured clustering through deployment manager for load balancing and failover functions
24x7 on-site operations support in an environment with over 100 Servers.
Environment: IBM WebSphere Application Server 6.0, WebSphere MQ 6.0, IBM Http Server, Apache, Solaris SunOS 5.8, Windows XP/7, IBM DB2, JDBC2.0, HTML, LDAP
Company: Zensar Technologies
Client: AAPT (Australian Associate Press Telecom) May ’ 07 – Jan ’ 10
Mainframe Cobol Developer/ WebSphere Administrator
Responsibilities:
Analyzing the user requirements specification, functionality and developing the same.
Design, coding, Unit Testing, Defect Fixing and Post production support
Worked on COBOL, DB2 and CICS programs from scratch/enhancements.
Written SQL queries – Joins, Views, Sub-queries using QMF or SPUFI in File-Aid and implement the same in Cobol-DB2 programs
Create, update and delete tables in IBM DB2
Used cursors on data extract from IBM DB2 tables and implementing cursors/commit statement in COBOL-DB2 programs
Involved in the Deployment process of various Releases
Created JCL jobs and modifying it according to client requirement
Preparing the Test plan and Test results documents.
Create packages to move elements from Dev to Pre-prod, Pre-production to Production using Endevor tool.
Monitoring of application batch processes in CA-JOB Trac scheduler to ensure successful completion of jobs.
Complete knowledge on Software Development Life Cycle
Setup, installation and participated in the ongoing development of WebSphere Application Server 5.0 on UNIX platforms.
Creating and managing the JDBC connection pools of the WebSphere Application Servers and Server clusters.
Configured Work Load Management (WLM) using clusters & clones.
Configured WebSphere resources including JDBC providers, JDBC data sources, connection pooling.
Deployed EAR files in WebSphere Application Server console.
Installation and Configuration of WebSphere MQ server.
Creating QMGR, MQ Queues, Channels, Listeners, Clusters,
Setting up connectivity between applications and MQ
Troubleshooting/ analyzing MQ logs
Recreating a queue manager when the Log files get corrupted
Performed Application-data backup & recovery, local backup/restoration of the WebSphere Environment – configurations and applications.
Managed multiple high profile, complex projects and implemented with minimal disruption to end-users.
On-call Production support (24x7).
Environment: WebSphere Application Server 5.0, WebSphere MQ 5.3, COBOL, DB2, JCL, CICS, Endevor, JDBC, Z/OS, J2EE
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