OBJECTIVE:

EXPERIENCE:

6/2012 - Present

Senior Datastage Developer

Analyzed, designed, developed, implemented and maintained Parallel jobs using IBM info sphere Data stage.Involved in design of dimensional data model – Star schema and Snow Flake SchemaGenerating DB scripts from Data modeling tool and Creation of physical tables in DB.Worked SCDs to populate Type I and Type II slowly changing dimension tables from several operational source filesCreated some routines (Before-After, Transform function) used across the project.Experienced in PX file stages that include Complex Flat File stage, DataSet stage, LookUp File Stage, Sequential file stage.Implemented Shared container for multiple jobs and Local containers for same job as per requirements.Adept knowledge and experience in mapping source to target data using IBM Data Stage 8.xImplemented multi-node declaration using configuration files (APT_Config_file) for performance enhancement.Experienced in developing parallel jobs using various Development/debug stages (Peek stage, Head & Tail Stage, Row generator stage, Column generator stage, Sample Stage) and processing stages (Aggregator, Change Capture, Change Apply, Filter, Sort & Merge, Funnel, Remove Duplicate Stage)Debug, test and fix the transformation logic applied in the parallel jobsInvolved in creating UNIX shell scripts for database connectivity and executing queries in parallel job execution.

4/2010 - 3/2012

Senior Datastage Developer

Involved in the design and development of ETL processes to load data for analytical purposes.Was responsible for building new data marts (SEO data mart) as well as enhancing the current ones with new features.Automated processes using the Unix shell scripts.Since processing of huge files from Omniture was involved, performance tuning of the mappings, sessions and workflows played a huge role in bringing down the running time.Co-ordinated with Omniture to resolve source file related issues.Wrote test cases for integration testing.Performed data profiling of the sources using Talend open source tool before beginning the development work. That helped me identify the data patterns.Analyzed data related issues and proposed possible solutions and picked the best one after the consultations based on ROI.Worked on the Revenue data mart which involved a lot of mappings with complicated data calculations where the totals have to absolutely precise.During development work, focused on reusability and simplicity to get the best performance.Used advanced mapping techniques to make the most of the Informatica tool.Worked with the users directly for requirements as well as any data related issues.

7/2008 - 4/2010

Datastage Developer

ETL development using SQL Server Integration Services.Handled large table loads using SSIS and sqladhoc queries.Created SSIS packages for data movement and database maintenanceAssisted data architect for implementing physical databases from logical design.Have written complex queries and stored procedures as per business needs.Designed, constructed and implemented physical databases.Installed, maintainedand administered SQL Server 2000/2005 instances and databases.Scheduled and monitored all maintenance activities of SQL Server 2000/2005 including database consistency check and index defragmentation.Conducted and participated in model reviews ensuring that models accurately reflect the business rules and policies to satisfy the business requirementsInvolved in performance tuning,resolving deadlock issues, normalization and de-normalization processes.

6/2005 - 7/2008

Datastage Developer

Maintained the inventory of all the AV equipment’s being used in the University.Created new database users as required and grant them appropriate rights and privileges.Performed capacity planning to create and maintain databases.Installed new versions of the Oracle RDBMS and its tools.Planned and implemented the backup and recovery of the Oracle database.Managed sharing of resources among applications.Troubleshoot problems related to databases and applications.Implemented and enforced security for the databases.Maintained database constraints to ensure referential integrity.Have written queries to retrieve information as and when needed by the stakeholder.

EDUCATION:

Master's Degree

LANGUAGES:

Languages

Proficiency Level