OBJECTIVE:

EXPERIENCE:

6/2012 - Present

Senior datastage Developer

Developed ETL jobs and ELT process using the Data Stage 8.0.Developed SQL scripts and UNIX shell scripts as per the functional and technical specs provided by the client.Worked for the migration of reporting database from Netezza to Teradata.Designed and modified datastage jobs and Netezza scripts for migration to Teradata.Worked extensively with Teradata sql assistant and BTEQ, designed complex teradata sql scripts to be called using datastage job sequences and unix shell scripts.Designed complex DataStage Jobs, sequences and tuned them for better performance.Responsible for preparing ETL Documentation for the developed processes.Extracted data from different source systems (PeopleSoft, Informix, Teradata DB, SLQ Server DB) and moved them into the Netezza warehouse and mart.Developed Sequence jobs to call SQL scripts for the ELT process in the Netezza target database.Developed UNIX shell scripts to automate the Data Load processes to the Target.Responsible for handling Production Support tickets and scheduling Control-M jobs.Scheduled the jobs developed as per the time mentioned by the business users and monitor the jobs and fix the issue if there is any job failure.Co-ordinated the offshore dev and testing teams.Involved in preparing Integration test cases, UAT test cases and involved in UAT testing.Involved in tuning many SQL scripts and other ETL processes used in this project.Involved in conducting knowledge sharing sessions for end-users, to business and to offshore team membersInvolved in Stream lining the development guide lines for using new Datastage features.

4/2010 - 5/2012

Senior Datastage Developer

Generating 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.Used the ETL Data Stage Director to schedule and running the jobs, testing and debugging its components & monitoring performance statistics.Experienced in using SQL *Loader and import utility in TOAD to populate tables in the data warehouse.Successfully implemented pipeline and partitioning parallelism techniques and ensured load balancing of data.Deployed different partitioning methods like Hash by column, Round Robin, Entire, Modulus, and Range for bulk data loading and for performance boost.Repartitioned job flow by determining DataStage PX best available resource consumption.

11/2008 - 3/2010

Datastage Developer

Performed extensive research and implemented the slowly changing dimension logic to suit the project business rules using initial and incremental loads.Derived a logic for initial reload of data into the staging table for a scenario to reload data before a past cut off time.Derived and implemented a method to capture rejected records from all ETL jobs into a specially designed reject staging table.Derived and implemented a method to insert rejected records from previous loads along with new data using staging variables in Transformer stage.Designed a Batch_run_history table, and derived and implemented a method to define incremental load start time and load end time, for each table to rollback and run ETL from previous load start time, in case if the job fails..Implemented the logic to update the loaded, rejected and unloaded records of the staging table using multiple instance of a single update jobDeveloped many complex Job Sequence utilizing user Variable Activity, Terminator Activity, StartLoop, EndLoop, Notification Activity, Routine Activity etcUsed unix scripts for passing parameters into the Job sequence and also developed Bath run tables to update load start timestamp and load end timestamp.Created backup of Datastage project into clearcase software and restored as and when required.Used IBM Tivoli Workload Scheduler for scheduling the jobs.Responsible for Business Analysis and Requirements Collection to develop ETL to extract data from XML Clob using latest XML Input stages of 8.5 versionTuned oracle SQL queries by creating indexes on the key column

9/2005 - 10/2008

Datastage developer

Developed Sequence jobs to call SQL scripts for the ELT process in the Netezza target database.Developed UNIX shell scripts to automate the Data Load processes to the Target.Responsible for handling Production Support tickets and scheduling Control-M jobs.Scheduled the jobs developed as per the time mentioned by the business users and monitor the jobs and fix the issue if there is any job failure.Co-ordinated the offshore dev and testing teams.Involved in preparing Integration test cases, UAT test cases and involved in UAT testing.Involved in tuning many SQL scripts and other ETL processes used in this project.Involved in conducting knowledge sharing sessions for end-users, to business and to offshore team membersInvolved in Stream lining the development guide lines for using new Datastage features.Responsible for conducting the peer reviews, planning and estimating the project requirements and to report the status to business managers.Client: Confidential, Columbus, OH.

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