Worked as Developer and Tester,Job Responsibilities include:• Analyzed data flow and business requirements to create High Level Design document.• Created the Informatica mapping and workflow to load the data from the external source to the Enterprise Data Warehouse.• Provide change requests for the Telenor Data Warehouse systems and implementing new solutions to provide IT support for Telenor operations.• Developer in PL/SQL, Informatica Mappings, and UNIX shell scripts.• Documenting requirements, creating standard operating procedures, provided end user training, developing ad-hoc reports.• Interacting with Clients during the development stage and resolving the post development issues, also developing new functionalities requested by the client.• Worked on SQL and Sybase to perform ETL tasks • Involved in configuration and processing designing of many new Service Requests.• Co-ordinate with all stakeholders until the completion of the SDLC cycle of every change request.• Dealt with client issues related to system design as well as to business and suggested process changes.• Worked on Performance related issues and fine-tuned system processes which improved the operational efficiency.