Information Technology Manager
Resume:
SUMMARY
●Over * plus years of experience in Administration and support of systems, application servers such as Weblogic Server(10g/11g/12c), jboss EAP (4.x/5.x/6.x/7), websphere application server (6.x, 7.0, 8.0), Apache, Tomcat, HTTP web servers and Installation, Configuration, Troubleshooting, Load Balancing, Clustering and maintenance of middleware applications on various Operating systems such as RHEL, SUN Solaris, Windows.
●Expertise in Configuring, Monitoring and Controlling of EJB and JVMs on high availability JMS Clusters, Queues
●Experienced in content management in authorizing virtualization staging and deployment of migration
●Created domains for weblogic jboss webpshere middleware application server and configured jvm ejb properties deployed ear war jar applications & applied critical patches, service pack installations, upgraded versions of weblogic/websphere/jboss application servers
●Experience in configuring of JDBC Connection Pools with MySql, and SqlServer, configured multi Datasource gridlink with Oracle RAC,
●Extensive experience with scripting languages SHELL PERL PYTHON UNIX to Automate system admin jobs and Crontabs, configured LOG Rotation, Log archival for application and Web server’s rotational basis, extensively used UNIX commands
●Extensively worked with Performance Tuning, Capacity planning of Weblogic, Jboss, Websphere server, on finding Memory Leaks, adjusting the JVM Heap Sizes and GC Parameters, Monitoring Logs, Thread Dump Analysis, Core Dump Analysis when Server crashed unevenly, Heap dump, Java stack, Native thread, Session i/o, and Trouble-shooted Mission critical problems in production, Server Crashes, Hangs, Out of Memory, CPU, native memory, shared memory, stuck thread issues and JDK, Hashmaps, related issues with JDK
●Experienced with TCP/IP, UNIX, LAN, WAN, web server Administration, & f5
●Profound knowledge about complete Software Development Life Cycle (SDLC) and Object Oriented Concepts, Recommend the best Automation across SDLC in testing tools (HP Quality Center/IBM Rational/Junit)
●Excellent team player with strong interpersonal, communication, technical, analytical and organizational skills. Handled on-call production support on a 24x7 basis.
PROFESSIONAL EXPERIENCE:
Middleware Administrator Feb 2013 – Till Present
Walmart.com
Description:
Wal-Mart the world’s largest retailer acquired ASDA British supermarket chain which retails food, clothing Etc.
The current project deals with the enhancement of ASDA to ASDA General merchandising which allows online trading of General merchandising goods. We maintain several projects/integrations on multi middleware technologies, extensively used Jboss, weblogic, websphere web applications, for integrating various applications like Warehouses, Data Cash, Banking, Order Management System, Inventory Management System and Returns Management systems
Responsibilities:
●Involved in the architecture, design and development of US And UK Projects on middleware jboss weblogic websphere RHEL, Sun solaris platform
●Experience in creating queues, Configuring Weblogic, jboss JMS sub module settings, Queues, Topics, Activation Specifications, connection Factories for EMS & Websphere MQ.
●Responsible for creating Clusters with weblogic and jboss application server, upgrading JVMs, apply critical patches and configuring ejb/jvm properties (Heap Size, Verbose Garbage Collection, arguments & system log files)
●Preparation of technical design documents based on the functional specifications
●Built new set of Weblogic,Jboss domain mode, webpshere instances as we were migrating from out dated servers/versions to newer versions that is weblogic 10.1.3.2 to 10.1.3.6 & later on 12c, Jboss 6.x to 7.x
●Setup API's for the applications to talk to MQ & JMS Queue across various gateways
●Automate infrastructure using chef to manage and deploy private cloud instances and Jboss applications.
●Deployed Apache/Tomcat application using chef to handle soap webservice end points
●Installed, configured plugins, applied critical patches regularly for Jboss/websphere/weblogic application, Apache, Tomcat web servers.
●Migrated weblogic & Jboss env from QA to post-prod virtual host RHEL 64 with code base GIThub & server side config, APIs, changed from single node databse to RAC cluster.
●Troubleshoot, track incidents/problems, and work with clients for resolution. Assist with problem resolution & root cause analysis of issues. Provided technical support to the development team.
●Configured SSL and VeriSign certificated to handle the handshake between the different firewalls and Installed third party SSL certificates and enabled the Global security for weblogic jboss and websphere application through Admin console and applications authentication by integrating ssl.
●Implemented the SSL security for weblogic & jboss for parallel projects on clusterd env; created certificates for the test environment and ordered certificates from VeriSign for Production.
●Respond to platform alerts and incidents and lead the troubleshooting of outages and other incidents, including guiding the incident management team to engage firewall, network, application, and 3rd party teams as needed.
●Experienced in deploying applications (WAR, JAR, and EAR) in stand-alone domain and clustered environments of weblogic Jboss application server
●Used Common Logging and Error Handling across all Interface, Migrated the working application into Production
Weblogic/Jboss Administrator Feb 2011 – Jan 2013
Wyndham Hotel Group, NJ
Description:
This project involves conceptualizing and developing the integration architecture to enable the integration of data from various legacy systems, responsibilities include Capturing and modeling the client’s business processes and using Adapters to perform the integration.
Responsibilities:
●Interacting with the client and gathering the requirements.
●Involved in planning & implementing high availability environments which included Jboss, weblogic, clustering, session replication, hardware load balancing & failover Apache web servers
●Experience in creating queues, Configuring Jboss JMS settings, Queues, Topics, Activation Specifications, connection Factories for WAS MQ.
●extensively worked on Installation, Configuring, Upgrading, troubleshooting & maintenance of Weblogic, Apache, Tomcat, Jboss server on DEV, QA, performance, Prod, UAT on AIX, and Linux platforms used silent Installation and configured the IHS Plug-in and Installed fix packs.
●Configured WebSphere MQ Connection Factories with weblogic server and Queue Destinations for connecting applications on weblogic to Jboss and Jboss to gateway external applications
●Utilized scripting skills to build config &administer Jboss application server,
●Extensively worked with Performance Tuning, Capacity planning of weblogic, Jboss, server, on finding Memory Leaks, adjusting the JVM Heap Sizes and GC Parameters, Monitoring Logs, Thread Dump Analysis, Core Dump Analysis when Server crashed unevenly, Heap dump, Java stack, Native thread, Session i/o, and Trouble-shooted Mission critical problems in production, Server Crashes, Hangs, Out of Memory, CPU, native memory, shared memory, stuck thread issues and JDK, Hashmaps, related issues with JDK
●Created domains for middleware application server and configured jvm ejb properties deployed ear war jar applications & applied critical patches, service pack installations, upgraded versions of jboss application servers.
●Leading the project from On-site and coordinating the offshore Team
●Responsible for ensuring that capacity management and performance tuning targets are met or exceeded.
●Developed various shell scripts to perform the back end jobs such as managing log files, Start/Stop processes etc.
●Participated in Change Management and Release Management sessions and coordinated the efforts.
●Analyze and find the root cause of Infrastructure and Application issues.
●Testing the developed application into DEV QA and Release QA Env.
●Migrated legacy applications from JBoss 4.2 to JBoss 5.1
●Created test plans, test cases, and test scripts for various.
●Involved in Unit and Integration testing of overall Business Works application services.
●Provide hands-on production support as needed on an escalation basis.
●Support capacity management and performance tuning to ensure that performance targets are met or exceeded.
Symantec Corporation / Mphasis Aug 2009- Sep-2010
Lead Administrator
Description:
Being part of AICC Team (Application Integration Competency Center), our Team was responsible for building and maintaining middleware infrastructure& Operations. My primary responsibilities were maintaining, monitoring the weblogic jboss and websphere application servers
Responsibilities:
●Extensively migrated the middleware infrastructure weblogic Jboss applications and OS from Linux 64 to Sun solaris
●Have created clusters with Jboss 6.0 & weblogic server 10.1.3.x and configured the JVM properties like Heap Size, Verbose Garbage Collection, JVM arguments
●Configured JMS Queues and targeted to various JMS submodules on RHEL and created MQ queues, channels, binding files for MQ application usage, Connection Factories and Queue Destinations for connecting weblogic and Jboss applications
●Hands on experience with Installing, monitoring performance parameters through JON (Jboss Operations Network) and j console for JBOSS EAP.
●Installed & Integrated Apache Tomcat web server with Jboss application server using mod_jk Modules
●Experienced in archive and purge of old stale instances from transactional data base & Debug the log files, configured the weblogic/Jboss application server log file properties through admin console & routed to shared mount, for debugging & trouble shoot the issue to fix permanently, like memory leak, out of memory, intermittent web service, J2ee services.
●experience in deploying Ear, JAR, WAR, and achieved High Availability of application servers by configuring Load Balancing and failover functionality on clustered/standalone environment using Admin console in Web Sphere, WS admin scripts and through command line in JBOSS EA, WLST for weblogic server
●configured and administered JDBC resources (DataSources, connection pools), managed JNDI tree, Virtual Host, JMS resources (Queue, Topic, connection factory) in WebLogic & standalone Jboss server
●Implemented SSL between client weblogic Jboss instance & webserver apache, implemented Global security LDAP for weblogic Application Server.
●Installed Configured Sessions, Global Security, renewal of SSl certificates in Jboss application and webservers
●Experience in Troubleshooting, performance tuning using (Resource analyzer, log analyzer)
●Involved in debugging of various applications which included conditions like Application hung state, JDBC timeouts.
●Worked on the plan and execution of migrating jboss applications from entrust to Verisign certificates.
●Worked on the creation, implementation, managing & maintaining the verisign certificates.
Tata Teleservices, India Jan 2008 – Apr 2009
Systems Administrator
Description:
Tata Teleservices used middleware software to replace point-to-point integration. The solution provides real-time customer data to all employees - a 91.6 percent improvement in the data transfer time of customer account details. The CODS (consolidate operational database) application platform runs on IBM pSeries hardware with AIX as the OS .The server as the message capturing, data storage and middleware is comprised of the Oracle family of products. Tivoli omegamon is used for 24/7 monitoring and alerting.
Responsibilities:
●Configured Jboss and weblogic server.
●Created and managed Queues and Bridges; Groups and Users.
●Configured ACL’s on the Queues and routing on servers.
●Deployed digital certificates (SSL Certificates) on the server.
●Configured load balancing and failover mechanism
●Involved in logging, monitoring, and statistics facilities to effectively view system activities and track system performance using middleware application use key tool to verify SSL digital certificates.
●Configured Groups and Users, BW Services and Adapters.
●Manually Deployed, Deleted, Started and stopped the services and adapters.
●Used scripts to Deploy, Delete, and Start and Stop the services and adapters.
●Responsible for preparing and delivering the Deployment Documents.
Hewlett & Packard India Ltd (Apr 2006 – Dec 2007)
Systems Administrator/Engineer
Description:
Hewlett-Packard Company (HP) is a leading global provider of IT products, technologies, solutions, and services to consumers and businesses. This is HP's worldwide Siebel Implementation to unite its sales force, marketing personnel, call center professionals, and partner network through a single, comprehensive business customer information system. This application combines functionality from Siebel Sales, Siebel Marketing, Siebel Call Center, Siebel Analytics, Handheld, CTI and PRM.
Responsibilities:
●experienced as Technical writer and gathered Functional requirement for the Existing middleware system
●The project work involved designing and building a point-to-point integration solution between an existing Schneider’s legacy server with ERP applications.
●configured single sign for weblogic server ebs and oracle erp
●extensive working experience with clustered web servers Jboss EAP
●extensively used load runner in volume or capacity planning in PROD lower environment which is a replica of production and make necessary changes to heap or memory on following release
●Created Roles and Users for various applications deployed on the application Server.
●Create and manage Active-Active clusters on the production and Lower Replication environment.
●Installed and configured manuals, to maintain procedure manuals and standards for Weblogic and Oracle Webcenter Content modules
●Monitoring: Setup and maintain effective monitoring and alert systems using Oracle Enterprise Manager Grid Control OEM – oracle enterprise manager
●Extensively used JBOSS, Ca wily to monitor a weekly statistics for fusion application and CPU and memory level statistics in both Graphical and excel representation to analyze and debug the issue.
●Normally monitored heap management, JVM Configuration, No. of processors used for the application, CPU utilization, thread level details, connection pools, and session level details.
●Created Web service Policies using Enterprise Manager Console for user authentication.
●Worked with multiple teams for the successful implementation of complex projects across ERP systems
●Worked under critical situations & provided best solutions
●Involved in 24x7 production Support and conduct meetings about issues
EDUCATION
Master of Science (Information Technology) from Kuvempu University, India.
Bachelor of Science (Information Technology) from Mysore University, India.
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