IIB Developer for Enterprise Integration Solution

Project Summary:
As a freelance IIB developer, delivered end-to-end enterprise integration solutions using IBM Integration Bus (IIB). Developed scalable message flows to integrate heterogeneous systems involving MQ, files, web services, and databases. Focused on performance, reusability, and error handling to ensure stable and maintainable solutions.

Key Responsibilities:

Designed and developed message flows using Compute, MQ, File, HTTP, SOAP, and Timer nodes to orchestrate business logic and system integration.

Performed XML-to-copybook transformations and complex data mapping using ESQL and Java Compute Node.

Created and consumed SOAP and RESTful web services, building WSDLs, XSDs, and supporting both XML and JSON formats.

Processed flat files with FileInput/FileOutput nodes and ensured accurate parsing and delivery to target systems.

Integrated with IBM MQ for messaging and databases for real-time data retrieval and persistence.

Implemented robust error handling and developed email-based error notification to proactively alert support teams.

Followed modular design principles and built reusable sub-flows for better maintainability.

Participated in production support, handled critical issues, and provided solutions within tight timelines.

Worked with CI/CD tools like Jenkins, SVN, and UCD for automated build and deployment of message flows.

Collaborated in projects using both Agile (Scrum) and Waterfall methodologies.

Tools & Technologies:
IBM IIB/ACE, ESQL, Java Compute Node, SOAP, REST, MQ, File Nodes, Email Node, XML, JSON, WSDL, XSD, Jenkins, SVN, Oracle/DB2, Agile/Scrum