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Rajendhar Dayalan

Mercedes Benz USA | Middleware Engineer

About Me

Middleware consultant over 7+ years of experience in IBM WebSphere Products on Linux (RHEL), AIX and Windows Platforms.
Experienced in Implementation and Support of WebSphere SOA products like WebSphere MQ, WebSphere MB, WebSphere IIB, WebSphere ESB, WebSphere Application Server and DB2. Designing, implementing and supporting EAI architecture using WebSphere Application Server, WebSphere MQ, WebSphere Integration Bus and WebSphere Message Broker.
Installing and configuring the SOA products.
Supporting Integration infrastructure (WAS, MQ, IIB, WMB, weblogic 12c).
Installed and configured the distributed and clustered live environments towards HA & DR. Message Flow Development using Message Broker Toolkit and Integration Designer.
Expertise Includes:
Developed Message flows for different Protocols MQ, HTTP, SOAP, and FTP.
Implementing Message follows to handle different Message Formats (domains) like DFDL, XMLNSC, JSON, and BLOB.
Developing SOAP WSDL, XML schema for integrating different applications.
Using different nodes like mapping nodes, esql codes for message transformation.
Experience in developing complex esql codes for transforming messages.
Developing Shell Scripts for Monitoring and housekeeping logs.
Strong expertise in installation, configuration, deployment and management of Enterprise J2EE Applications on Websphere Application Server.
Worked on Incident Management, Problem management and change management.
Keep monitoring quality assurance and SLA compliance within the norms and guidelines defined by the organization.
Adherence to the ITIL practices.
Involved in Non Functional Testing, UAT Coordination, testing of core functional releases and provide support to the applications which are released to BAU.
Good Experience in Capacity & Impact analysis for migration.
Expertise in performance tuning and optimization for various WebSphere products.
Implemented Error handling and monitoring for different environments.
Experienced on UNIX commands for Trouble Shooting, Deployment, Environment tuning, Implementation, Configurations.
Experienced in setting up the development, testing, UAT/contingency and production environments with good exposure to Testing and De-bugging.
Hands on Relational Database like Oracle and DB2.

Work Experience

Mercedes-Benz USA
Middleware Engineer
May, 2016
  • Developed Message flows for different Protocols MQ, HTTP, SOAP, and FTP.

  • Implementing Message follows to handle different Message Formats (domains) like DFDL, XMLNSC and BLOB.

  • Developed SOAP WSDL, XML schema for integrating different applications.

  • Using different nodes like mapping nodes, esql codes for message transformation.

  • Designing Auditing and Error Handling Flows.

  • Performing unit testing on the IIB framework.

  • Configuring DB2 on windows server to hold IIB routing information.

  • Setting up MQ environment for Message flows.


Mercedes Benz USA
, Middleware Engineer
May, 2016 - February, 2017
  • Integration Team is responsible for end to end integration of applications running on different platform across the organization.
  • We provide support and development of integration architecture.
  • Responsibilities:
  • Installation, configuration and maintenance of Websphere MQ 8.0, IIB 9.0, DB2 on AIX servers
  • Patching Websphere software's to latest version.
  • Created multi instance QMGR, Integration Bus and configured HA on NetAPP.
  • Configuration of WMQ, setting up of Queues, Queue managers and Channels.
  • Created MQ Series objects on local and remote MQ servers.
  • Setting up hopping queues to connect to remote QMGR's.
  • Created remote triggers to setup application triggering.
  • Configuring 2-way and 1-way SSL between Queue Managers and application client.
  • Securing Admin connection channels with SSL.
  • Developed Message flows for different Protocols MQ, HTTP, SOAP, and FTP.
  • Implementing Message follows to handle different Message Formats (domains) like DFDL, XMLNSC, JSON, and BLOB.
  • Developed SOAP WSDL, XML schema for integrating different applications.
  • Using different nodes like mapping nodes, esql codes for message transformation.
  • Designing Auditing and Error Handling Flows.
  • Performing unit testing on the IIB framework.
  • Configuring DB2 tables to hold IIB routing information.
  • Setting up MQ environment for Message flows.
  • Developed Java utility to dump audit messages.

Great Eastern Insurance
, SOA Consultant
June, 2012 - April, 2016
  • Enterprise Application team is responsible for integrating applications running on different platforms.
  • Important applications like CRM, Insurance Policy systems and Insurance Agent systems are integrated by EAI team.
  • Responsibilities:
  • Installation, configuration and maintenance of Websphere MQ 7.0, Websphere Message Broker V8.0, IIB, Websphere ESB 7.5, WSRR and MQ on AIX servers and created deployment environment for various environments.
  • Configuration of WMQ, setting up of Queues, Queue managers and Channels.
  • Created MQ Series objects on local and remote MQ servers.
  • Enabled Triggering on the Queues for monitoring and automation.
  • Have done Clustering of Queue Managers and worked in the cluster environment.
  • Have done MQ Backup & Recovery.
  • Troubleshooting the Queue and Channels in all the environments.
  • Configuring 2-way and 1-way SSL between Queue Managers and application client.
  • Securing Admin connection channels with SSL.
  • Installing and configuring Websphere Message Broker and Broker Toolkit on Windows environment.
  • Performance Tuning the different components of SOA.
  • Cataloging required databases for configuring databases with Websphere Message Broker.
  • Configuring User.log for Broker to write error messages.
  • Configuring Message Broker database for Audit logging and error logging.
  • Developed ESQL code for transforming the MQ Messages.
  • Creating Message Flows using Message Broker Toolkit, developing mediation flows for transforming messages, designing and implementing framework for auditing messages incoming messages and handling exceptions.
  • Using different nodes (MQ, Http, web services) to develop flows for integrating system.
  • Creating BAR files and deploying to Message Broker.
  • Enabling Debugging in Websphere Message broker to solve issues in esql code.
  • Using MQSI Commands to monitor message flow, deploy, stop, and start message flows.
  • Followed ITIL process for release management.
  • Raising change request for new changes and implementing the same.
  • Performed impact analysis and provide solutions for new business requirements.
  • Support Application stress testing and load testing.
  • Analyze the results to optimize better performance in middleware.
  • Installation, configuration and maintenance of WAS 7.0 on AIX and Windows environments and created different instances of the App Server for various environments.
  • Created clusters both horizontal and vertical for fail over support, backup/recovery, and workload management; involved in scalability testing and performance tuning.
  • Configuring web applications on WebSphere application server 7.0.
  • Configured Virtual hosts, Data sources, Shared Library, JDBC drivers, J2C Aliases across multiple instances of Application Server.
  • Configuring MQ JNDI's (activation specs, connection factories, queues) for connecting to MQ queues.
  • Installing DB2 in HA environment.
  • Modifying dbcfg values to increase performance of DB2.
  • Creating DB2 instances and databases.
  • Monitoring databases for performance issues and fixing the same.

CITIZENS Bank
, Senior Software Engineer
November, 2008 - October, 2011
  • Maintaining critical applications running on WebSphere Application server.
  • Supporting installation configuration and setup of new applications and maintain old applications.
  • The applications run on different platforms (LINUX, AIX, and WINDOWS).
  • This team will be responsible for new POC's in the middleware space.
  • Setting up third party applications used for operations.
  • Responsibilities:
  • Installation, configuration and maintenance of WAS 6.0/6.1/7.0 on Linux (RHEL), AIX and Windows environments and created different instances of the App Server for various environments.
  • Analysis of the requirements, specifications provided by the clients, Trouble Shooting, Solving Issues according to priority basics (SLA), Changes according to customer requirements, Environment tuning.
  • Created clusters both horizontal and vertical for fail over support, backup/recovery, and workload management; involved in scalability testing and performance tuning.
  • Installing, configuring and integrating Web Servers like IHS, IIS generate and propagate Webserver Plug-ins.
  • Installation, configuration and maintenance of IBM HTTP Server in a clustered High availability environment, configuring Plugins and Virtual hosts for the web servers.
  • Tuned Database Connection Pools, Thread Pools, and JVM Heap Size to required sizes using Administration Console.
  • Worked in performance testing and troubleshooting various issues, Performed routine management of WebSphere environment like monitoring disk space, CPU utilization.
  • Responsible for web based security, coordinating with the Operations, Database, Network and the System administration teams to resolve issues.
  • Created user roles and groups for securing the resources using LDAP authentication.
  • Configured WMQ on Windows and AIX.
  • Configuration of WMQ, setting up of Queues, Queue managers and Channels.
  • Created MQ Series objects on local and remote MQ servers.

Education

James cook university, Masters in IT

James cook University Australia, Masters in Information Technology - Information Technology
  • CGPA 5.82 out of 7.0

Anna University, Bachelors of Engineering - Electronics and Communication

Skills

  • WAS
  • WMQ
  • IIB
  • WMB
  • UNIX
  • AIX
  • HTTP
  • INTEGRATION
  • INTEGRATOR
  • MAINTENANCE
  • MIDDLEWARE
  • MQ SERIES
  • TESTING
  • WEBSPHERE
  • APPLICATION INTEGRATION
  • APPLICATION SERVER
  • BACKUP/RECOVERY
  • DATABASE
  • ENTERPRISE APPLICATION
  • HORIZONTAL
  • PERFORMANCE TUNING
  • AUDIT
  • AUDITING
  • DB2
  • SSL
  • BUSINESS REQUIREMENTS
  • CLUSTERING
  • CRM
  • CUSTOMER RELATIONSHIP MANAGEMENT
  • DATA SOURCES
  • DATABASES
  • DEPLOYMENT
  • Drivers
  • EAI
  • ENTERPRISE APPLICATION INTEGRATION
  • EXCEPTIONS
  • ITIL
  • JDBC
  • LOAD TESTING
  • LOGGING
  • SOA
  • SOLUTIONS
  • WEB SERVICES
  • ENGINEER
  • AUTHENTICATION
  • IIS
  • INTERNET INFORMATION SERVICES
  • JVM
  • LDAP
  • LINUX
  • OPERATIONS
  • PERFORMANCE TESTING
  • SECURITY
  • SOFTWARE ENGINEER
  • SYSTEM ADMINISTRATION
  • SYSTEMS ADMINISTRATION
  • WEB BASED
  • ARCHITECTURE
  • BLOB
  • FTP
  • JAVA
  • JSON
  • MAPPING
  • NETAPP
  • SOAP
  • TOPO
  • UNIT TESTING
  • XML
  • CHANGE MANAGEMENT
  • CLARIFY
  • ECLIPSE
  • FUNCTIONAL TESTING
  • HOUSEKEEPING
  • INCIDENT MANAGEMENT
  • J2EE
  • MICROSOFT PROJECT
  • MS OFFICE
  • MS PROJECT
  • MS VISIO
  • OPTIMIZATION
  • ORACLE
  • ORACLE 10G
  • QUALITY ASSURANCE
  • RED HAT
  • RELATIONAL DATABASE
  • SHELL SCRIPTS
  • SQL
  • UAT
  • VISIO
  • WEBLOGIC
  • XSLT

Languages

English

Full professional proficiency

Networks