Samsung

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ppEdwh

dwh

Hadoop

bigdata

Teradta

dwbi

Oracle

sqls

Informatica

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Around 8 + years designing, developing large-scale data integration solutions for data warehouses, application migrations and such across a variety of platforms and databases. Having Good knowledge on Data Warehousing and Business Intelligence concepts with emphasis on Extraction Transformation and Loading data and Extensive experience in analysis, design, development, testing and implementation involved in the complete life cycle for the projects and contributed to the development of the system architecture. extensive experience in ETL methodology for developing data extraction, loading and transformation trong development experience in Informatica with various databases like Oracle 11G, MySQL, Teradata 12 and MS SQL Server. Having Good Understanding of Dimensional Modeling like Star Schema, Snow Flake Schemas. Good understanding of Informatica Architecture and Extensive experience using Informatica components Designer, Workflow Manager, Workflow Monitor. Extensive experience in implement the SCD (Type I, Type II and Type III) Logic Implementation. Good Exposure in Partition Points, Cache Requirements, Commit points, Push down optimization, Session recovery. Good Exposure in Teradata Architecture, Writing B-TEQ scripts and hands on experience on using TeradaUtilities like FastExport, Mload, Tpump and Fast Load. Good Exposure in Creating Macros, Views, procedures, Query writing and performance tuning depends on requirements. Loading data into Teradata production and development warehouse using Teradata Parallel Transporter (TPT) with Informatica. Hands on knowledge on UNIX operating systems (Linux and Solaris) and Windows 98/2000/2003 Good Exposure in Shell scripting and Perl scripting Good experience and knowledge on Business Objects, Microstrategy Build OLAP Reports and Dashboards in MicroStrategy.8.1.1 Created Logical schema by defining Attributes, Facts, Metrics, filters, Custom Group etc Using Narrowcast Administration 8.1.1 created Service, subscribers, and subscription with personalization characteristics of each subscription and scheduled and monitored the services.

Experience Details:

Working as a Team Leader in Accenture, Hyderabad from July 2010 to Till date. Worked as a Senior Software Engineer in Surgical information Systems, Hyderabad from May 2006 to June 2010. Worked as a Software Engineer in ICSA, Hyderabad, from Nov 2004 to April 2006.Certifications:

1. Informatica Certified Developer 8.x2. Informatica Certified Administrator 8.x3. Teradata certified professional 12.0

Education Details:1 M.C.A from Nagarjuna University Passed Out 2003.Technical Skills: ETL : Informatica Power Center 9.1.0/8.6.1/7.x OLAP Tools : Business Objects 6.5, Microstrategy 9.0, Qlickview.Database Languages : SQL Server 2005, Oracle 9i,Teradata12.0,13.0, SQL data modeler 3.3Operating Systems : Windows NT and Windows 2003,UNIX.

Project #1:Title : Novartis AMAC CI to Informatica migration Client : Novartis.Role : ETL LeadDuration : Oct 2014 to Till DateEnvironment : Informatica Power Center 9.5.0, Informatica Cloud service, Castiron, Flat Files, Oracle11g, SQL, Salesforce.com, Windows, UNIX.

Project Description: The main intension of this project needs to migrate from current platform to new platform alongside scale up the current system. Fetching flat files data from salesforce.com (SFDC). Need to load the database tables alongside SFDC system to oracle base by using Informatica Cloud service.Loading from multiple source systems Flat Files, Veeva related data in salesforce.com and from Cloud loading data into Oracle tables. Responsibilities: Involved in requirement gatherings and analyzing BRDs and worked with system analysts to create source to target documents. Analyzed data in source databases before loading into data warehouse and created technical documents according to BRD. Created complex mappings using technical documents and loaded data into various data bases. Used dynamic cache in lookups and created slowly changing dimensions according to the requirements. Developed mappings involving complex business logic using mapping parameters, mapping variables and unconnected lookups SQL overrides, Normalizer, Union etc., Wrote pre and post session SQL scripts while loading data in Oracle data base. Identified bottlenecks at mapping level using debugger and resolved them to increase performance. Optimized performance of mappings by using appropriate transformations like source qualifier, aggregator, connected lookups etc., Worked with data architects in analyzing loaded data in data base and modified transformation logic if necessary Created pre-session and post-session shell scripts and e-mail notifications. Optimized Query performance and DTM buffer size, Buffer Block Size to tune session performance Used Parameter files to initialize workflow variables, Mapping parameters and mapping variables and used system variables in mappings for filtering records in mappings. Performed data validation, reconciliation and error handling in the load process. Created, optimized, reviewed, and executed SQL test queries to validate transformation rules used in source to target mappings/source views, and to verify data in target tables.Project #2:Title : Star Aggregator (Analytics) Client : Star TV.Role : ETL LeadDuration : July 2014 to Sep 2014.Environment : Flat Files, MySQL, SQL, Windows, Qlikview, UNIX, Erwin 4.1

Description:AVS BE source systems make available data in the shape of interfaces/extracts to Star Aggregator System as input for the Staging Area.Source data will be composed of flat csv files produced by AVS BE source system.Star DataMart solution, contains an aggregated level, with the purpose of creating pre-aggregate data tables from existing target tables, as input for dash boarding QlikView system.QlikView reporting tool takes in input the four tables provided by MySQL database, after being filled in the Reporting Area.Every night a reload of new available data is scheduled, in order to give the customer the possibility to watch each KPI updated to the last useful date.Roles and Responsibilities:

Performed Customer Requirements Gathering, Requirements Analysis, Design, Development, Testing, End User Acceptance Presentations, Implementation and Post production support of BI projects. Designed Source to Target mappings from primarily Flat files and MYSQL tables using Unix Jobs. Developed Transformation Logic to cleanse the source data of inconsistencies before loading the data into staging area which is the source for stage loading by using procedures. Responsible for performance tuning for several ETL process . Created UNIX shell scripts to read and archive files from source directory. Designed and developed error handling strategies to re-route bad data. Involved in conceptual, logical, physical data modeling and designed star schema for data warehouse Used Crontab to schedule and run sessions, as well as to check logs for all activities. Worked with migration team, testing team to fix defects in various environments like DEV and QA. Involved in the optimization of SQL queries which resulted in substantial performance improvement for the conversion processes. Used mapping variables and mapping parameters and created parameter files. Participated in code reviews and modified procedures according to the feedback from client. Developed various Adhoc and created Documents using Report Services Documents. Deployed procedures code to Integration,QA and production environments and supported post production issues. Documented technical mapping specifications and reviewed them with architects.

Project #3Title : BWIN-PARTY-EDWH Client : BWIN.Role : Team Lead (ETL Developer)Duration : July 2012 to June 2014Environment : Informatica Power Center 9.1.0, ODI, Flat Files, Oracle9i, SQL Server2005, Teradata12.0, Windows, UNIX.

Project & Role Description Bwin.Party Digital Entertainment is an online gambling company, formed by the March2011 merger of PartyGaming plc and Bwin Interactive Entertainment AG. The worlds largest publicly traded online gambling firm. It is headquartered in Gibraltar. The Bwin.Party having four key products/verticals: Sports betting, Poker, Casino and Bingo. Sports betting is a core business and three main brands bwin, Gamebookers and PartyBets. Poker is one of core businesses and main brand is PartyPoker.

Responsibilities: Wrote technical requirements and specifications for the modifications after interacting with customers/end users to obtain the requirements Worked with Business Analysts and Data Architects in gathering the requirements and designed the Mapping Specification Documents. Prepared technical requirements documents which include both macro-level and micro-level design documents Used Erwin data modeler to design the data marts and also generate the necessary DDL scripts for objects creation for DBA review Involved in preparing & documenting Test cases and Test procedures. Involved in developing these for Unit test, Integration Test and System Tests using various Informatica Transformations like Union, Joiner, Expression, Lookup, Aggregate, Filter, Router Normalizer, Update Strategy etc Involved in the performance tuning of Informatica mappings and Reusable transformations and analyze the target based commit interval for optimum session performance Wrote Pre-session and Post-session shell scripts for dropping, creating indexes for tables, Email tasks and various other applications Used Sequence Generator to create Dimension Keys and Update Strategy to insert records into the target table in staging and Data Mart.s This Wrote Pre-session and Post-session shell scripts for dropping, creating indexes for tables, Email tasks and various other applications volved in preparing & documenting Test cases and Test procedures. Involved in developing these for Unit test, Integration Test and System Tests ing various Informatica Transformations like Union, Joiner, Expression, Lookup, Aggregate, Filter, Router Normalizer, Update Strategy etc