Srikant Panda

srikantpandaetl@yahoo.com

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PROFESSIONAL SUMMARY

·   7+ years extensive experience in using ETL methodologies for supporting Data Extraction, Data Migration, Data Transformation and loading using Informatica Power Center 9, 8.6.1/ 7.x

·   Experience in the Implementation of full lifecycle in Data warehouse, Operational Data Store (ODS) and Business Data marts with Dimensional modeling techniques Star Schema and Snow flake Schema using Kimball and Inmon methodologies.

·   Strong experience in ETL, processing data from various sources into Data Warehouses and Data Marts using Informatica Power Center (Designer, Workflow Manager, Workflow Monitor, Metadata Manger).

·   Worked on Exception Handling Mappings for Data Qualityand Data Validation.

·   Experienced in designing ETL procedures and strategies to extract data from heterogeneous source systems like Oracle 11g/10g, SQL Server 2012/2008R2/2005, DB2 10, Flat files, XML, SAP R/3, and Cassandra etc.

·   Experience with MapReduce coding, including Java, Python, Pig programming, HadoopStreaming, HiveQL.

·   Experience in SQL, PL/SQL and UNIX shell scripting.

·   Expert in Informatica Metadata Manager,IDE, IDQ and Metadata Exchange exhaustively to maintain and document metadata.

·   Expert in ER Data Modeling tools like Erwin, ER-Studio and Visio in developing Fact & Dimensional tables, Logical and Physical models.

·   Evaluate and recommend new database software, utilities, and tools and set the strategy for implementing new technologies.

·   Strong experience in understanding of Business Intelligence and Data Warehousing Concepts with emphasis on ETL and SDLC (Software Development Lifecycle), Quality analysis.

·   Extensively involved in creating Oracle PL/SQL Stored Procedures, Functions, Packages, Triggers, Cursors, and Indexes with Query optimizations as part of ETL Development process.

·   Expert in documentation and Quality Assurance, Manual and Automated Testing Procedures with active involvement in Database/ Session/ Mapping Level Performance Tuning and Debugging.

·   Worked with Business Managers, Analysts, Development, and end users to correlate Business Logic and Specifications for ETL Development in an Agile development methodology.

TECHNICAL SKILLS:

ETL Tools: Informatica Power center 9, 8.x/7.x, DVO, IDE, IDQ, MM, MDM, DAC, Talend.

Reporting Tools: Informatica Data Analyzer, OBIEE, Cognos

Operating Systems: UNIX, Windows 98/ NT/2000/XP, Solaris

Database: Oracle 11g/10g, SQL Server, DB2,MongoDB, Greenplum, Cassandra, Teradata.

Database GUI Tools: TOAD, SVN, Agile, Jira

Web Development: HTML, XML

Programming Languages: Oracle SQL, PL/SQL,UNIX Shell Script, Perl Scripts, C#

Job Scheduling Tools: Autosys, Control M, Tidal

 

Education: Bachelors in Engineering, Computer Science

 

PROFESSIONAL EXPERIENCE

GameStop,Grapevine,TX                                                                                     Dec 2013- Present

ETL Developer

 

Description: Design/Development, Migration and System Automation of GameStop Data Warehouse of Informatica and Oracle Database on Linux using Open Source and Scripting.

 

Responsibilities:

·   Worked on PowerCenter tools including Designer/Repository, Workflow Manager/Monitor.

·   Involved in gathering business requirements, analysis, development and testing and production support of client application in an Agile methodology environment.

·   Develop ETL templates, standards, processes & procedures for loading information into data warehousing systems and for ensuring reliability of information loaded.

·   Extensively used Informatica Transformation like Source Qualifier, Rank, SQL, Router, Filter, Lookup, Joiner, Aggregator, Normalizer, Sorter etc. and all transformation properties.

·   Worked on extracting data from various sources like Oracle, PostGreDBand MongoDB.

·   Experienced in design of Greenplum Database Tables according to the Informatica needs.

·   Expert in fetching data from Apache Cassandra using DSE (DataStax Enterprise).

·   Experienced in building and coding applications using Hadoop components - HDFS, Hbase,Hive,Sqoop, Pig, Flume, Yarn etc.

·   Installed, Configured Talend ETL on single and multi-server environments.

·   Expert in Python scripting to take backup of multiple PowerCenter repositories across different domains, environments and servers.

·   Expert insystem automation of delete relational connections in PowerCenter repositories using Python scripts.

·   Expert in validation of Mappings, Maplets, Sessions, Workflows and Worklet Objects using Python Scripting.

·   Worked on Talend RTX ETL tool, develop jobs and scheduled jobs in Talend integration suite. Extensively used the concepts of ETL to load data from AS400, flat files to Saleforce.

·   Responsible for Performance in Informatica PowerCenter at the Target Level, Source level, Mapping Level, Session Level, and System Level.

·   Experience in using Data Warehouse Administration Console (DAC 10.1.3.4) for scheduling and executing Incremental ETL loads.

·   Extensively worked on Informatica Big Data edition using Informatica Powerexchange.

·   Develop ETL processing from source systems to the MongoDB and PostGreDB.

·   Expert in Design and develop in MapReduce/Yarn on anHadoop platform.

·   Worked on custom and standard model in Informatica MM (Meta Data Management).

·   Support technical design, development and unit test of ETL Cloud using Informatica Cloud.

Environment: Informatica Power Center (Repository Manager, Designer, Workflow Manager, DVO, IDQ, Workflow Monitor), SQL Server, Oracle 10g, Toad, UNIX Shell Scripting, Agile, Oracle SQL Developer, Tidal, Informatica MDM, DAC, Talend, DB2,Python, Greenplum, Cassandra,MongoDB, PostGreDB.

CSTBrands, San Antonio, TX                                                           Nov 2012-Oct 2013

ETL Developer

 

Description: Design/Development and Migration of Corner Store (CSTBrands) from Valero (Oil and gas). Up gradation of Informatica and Oracle Database on Linux. Used Informatica data services to profile and document the structure and quality of all data.

 

Responsibilities:

·   Involved in gathering business requirements, analysis, development and testing and production support of client application.

·   Extensively worked on Talend Coding and Unit testing activities

·   Worked on Programming using PL/SQL, Stored Procedures, Functions, Packages, Database triggers for Oracle and SQL Server.

·   Extracting, Scrubbing and Transforming data from Flat Files, Oracle, SQL Server, DB2,Teradata and then loading into Oracle database using Informatica.

·   Modified reports and Talend ETL jobs based on the feedback from QA testers and Users in development and staging environments.

·   Experience in Administering DAC 10.1.3.4 and Informatica 9.0.1.

·   Extensively worked with Slowly Changing Dimensions Type1, Type2, and Type3 for Data Loads.

·   Tracked production issues and provided application support in case of job failures.

·   Involved in handling the production tickets and resolve them in timely manner

·   Extensively used PL/SQL programming in backend and front-end functions, procedures, packages to implement business rules.

·   Strong programming experience in Java, Python and/or R.

·   Checked Sessions and error logs to troubleshoot problems and also used debugger for complex problem trouble shooting.

·   Expert in System automation using Python scripting.

·   Assist less experienced peers and provide technical guidance

·   Extensively worked with Joiner Transformation to join the heterogeneous sources.

·   Expert in Teradata Utilities such as TPT, MLOAD.

Environment: Informatica Power Center (Repository Manager, Designer, Workflow Manager, DVO, IDQ, IDE, Workflow Monitor), SQL Server, Oracle 10g, Toad, UNIX Shell Scripting, Flat Files, Oracle SQL Developer, SAP ABAP,  Tidal, DAC, Agile, Unix, DB2, SQL Loader, Talend, Teradata, Trillium.

JPMorgan Chase Bank, NJJan 2011 – Oct 2012
ETL Developer

Description: It's a merger project between two major banks of their credentials and respective applications with data and enrollments migrations of the existing companies and users. To arrive at a unified set of applications that will be offered to all the customers of both banks. Migration of application data from source (database of application being merged) into existing target (existing database of application being continued in future) is one of the core activities in this initiative.

Responsibilities:

·   Worked with Power center tools like Designer, Workflow Manager, Workflow Monitor, and Repository Manager.

·   Extensively worked with both Connected and Un-Connected Lookups.

·   Responsible for determining the bottlenecks and fixing the bottlenecks with performance tuning.

·   Worked with reusable objects like Re-Usable Transformation and Mapplets. Extensively worked with aggregate functions like Avg, Min, Max, First, Last in the Aggregator Transformation.

·   Followed the required client security policies and required approvals to move the code from one environment to other.

·   Extensively used SQL Override function in Source Qualifier Transformation.

·   Deployed the Informatica code and worked on code merge between two difference development teams.

·   Extensively used PL/SQLprogramming in backend and front-end functions, procedures, packages to implement business rules.

·   Worked with Agile method.

·   Involved in monitoring and maintenance of the Unix Server performance.

·   Involved in maintaining the share point portal to upload the documents regularly and store them on share point site.

·   Performed complex defect fixes in various environments like UAT, SIT etc. to ensure the proper delivery of the developed jobs into the production environment.

·   Responsible for Unit Testing of Mappings and Workflows.

·   Attended daily status call with internal team and weekly calls with client and updated the status report.

·   Worked on extracting data from various heterogeneous sources like Oracle, SQL Server, Teradata, MS Access and Flat files.  

Environment: Informatica Power Center(Repository Manager, Designer, Workflow Manager, Workflow Monitor, IDE, IDQ),SQL Server, Oracle 10g, Toad, UNIX Shell Scripting, Flat Files, SQL Developer, Oracle EBS 11i.

Target Corporations, MN                                                                    Feb 2010 – Dec2011
ETLDeveloper

Description: (Application Development and Maintenance) Target Corporations is one of the largest retail chains in the US and intends to transform its enterprise wide data warehousing, data movement and analytics technology environment to improve data quality and access controls, instantiate common data routines through the Data Integration (DI) architecture with a view to corresponding cost reduction based on the simplification.

Responsibilities:

·   Experience on working with complete Software Development Life Cycle of the application.

·   Involved in writing Unix and Perl scripts for data parsing, manipulation and updating.

·   Handled production related issues and tickets for resolving them in time.

·   Worked with Client tools like Designer, Workflow Manager, Workflow Monitor, and Manager.

·   Responsible for migrate the workflows from development to production environment.

·   Encapsulated PL/SQL procedures and functions in packages to organize application.

·   Involved in creating database tables, views, triggers.

·   Responsible for migrating from Development to staging and to Production (deployments).

·   Designed for populating Tables for one time load and Incremental loads.

·   Worked on Designer tools like Source Analyzer, Warehouse Designer, Transformation Developer, Mapplet Designer and Mapping Designer.

·   Implemented various loads like Daily Loads, Weekly Loads, and Quarterly Loads using Incremental Loading Strategy.

Environment: Informatica Power Center (Repository Manager, Designer, Workflow Manager, Workflow Monitor), Teradata, UDB, UNIX, Oracle 10g, Mainframes (DB2, VSAM Files, Sequential Files).

Keane India, India Jul 2007 - Dec 2010
Oracle Developer

Responsibilities:

·   Involved in Analysis, Database Design, Coding, and Implementation.

·   Loaded data into multiple tables using SQL Loader.

·   Used extensively PL/SQL to develop packages, stored procedure, functions and triggers.

·   Created and maintained documents including data quality plan design, mapping inventory, mapping specifications, change request form, unit test plan, test case list, target-source matrix. et

·   Used different joins, sub-query and nested query in SQL query for reports.

·   Implemented the technical and functional aspects of the project.

·   Interacted with user for problems faced and providing necessary technical support by fixing\ the bugs.

Environment:Oracle, MS SQL Server2003, PL/SQL, Windows NT, Oracle 9i, UNIX and windows 2000.