1. Resume
RAJARAO MARISA.
rajarao34986@gmail.com.
+91 8884555466.
EXPERIENCE SUMMARY
 Having 4.9 years of Experience in Data warehousing.
 Demonstrated expertise utilizing ETL tool Informatica
 Having strong conceptual knowledge in Data Warehousing, Extensively used ETL.
 Methodology for supporting Data Extraction, Transformations & Loading processing, in a
corporate-wide-ETL Solution using Informatica Power Center & Developer tool.
 Worked on different phases of data warehouse development lifecycle, from gathering
requirements to testing and implementation.
 Thorough knowledge on Data warehouse Concepts like Star, Snow Flake Schemas.
 Extensively worked on Informatica Designer Components - Source Analyzer,
Warehousing Designer, Transformations Developer, Mapplet and Mapping Designer.
 Hands on experience with complex mappings from varied transformation logics like
Unconnected and Connected lookups, Router, Aggregator, Joiner, Update Strategy
and re-usable transformations, Star schema and Snowflakes schema.
 Having demonstrated knowledge in Informatica Data Quality Transformation like
Profiler, Standardizer, Merge, case, Labeller, Address validation etc..,
 Experience in Optimizing the Performance of SQL scripts and Oracle database/application
tuning.
 Good knowledge on Oracle, Teradata, sql server, SAP HANA Database and SQL
Concepts.
 Implemented various mappings with different application source system like SFDC, SAP
ECC applications, MQ messages, Hadoop file system etc...
 Good Understanding of Data warehousing Architecture.
 Implemented Various Performance Tuning Techniques on Mappings.
 Team player with excellent communication and problem solving skills.
 Knowledge on UNIX commands.
 Involved in the ETL Testing with informatica ETL Tool
EMPLOYMENT HISTORY
 Working as a SSE for Tech Mahindra, Bangalore since March 2016 to Till Date.
 Working as a SSE for UST Global, Bangalore since May 2011 to Feb 2016.
ACADEMIC PROFILE
 MCA from GITAM UNIVERSITY, VISAKHAPATNAM. Year of Completed 2011.
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2.  BSC from ANDHRA UNIVERSITY, VISAKHAPATNAM. Year of Completed 2008.
TECHNICAL EXPOSURE
 ETL Tool : Informatica Power Center 8x, 9x.
 Operating System : Windows Xp and Unix
 Database : Oracle 10g,SQL Server 2008,Teradata,SFDC,
BIG Data, SAP HANA.
 Query Languages : SQL.
 Shell scripting : UNIX.
 Other Tools : SQL Developer, Teradata SQL Assistance, hp QC, Winscp.
Projects (Projects are in reverse chronological order)
Project #5
Project Domain Telecom.
Project Name: NBA,EDW build
Client Optus
Role Sr. Developer.
Organization Tech Mahindra
Duration Mar 2016 - Till date
Team Size 10
Environment Informatica, Teradata, oracle, putty, ETL framework.
Description :
EDW is the Optus Enterprise data warehouse system to process the data to NBA
downstream system which is actual business aggregation data extracted from existed legacy system
(Oracle data sources) to integrate warehouse process and generate the reports.
Responsibilities
 Understanding process as per the TDD documents.
 Framing mappings for the business logic as per the mapping documents.
 Involved in analyzing the source system data.
 Exposure to work with existed ETL frame work of Optus process.
 Maintained standard documentation and templates related to development.
 Involving UNIT TESTING and migration checklist.
 Provide SIT/UAT support.
Project #4
Project Domain Healthcare.
Project Name: Decomm
Client WellPoint Indianapolis, Indiana, USA
Role Sr. Developer.
Organization UST Global
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3. Duration Oct 2014 – Jan 2016
Team Size 6
Environment Informatica Power Center 9.5, Teradata, SAP ECC UNIX, hp QC.
Description :
The project is to enhance the existing CRDW core to CRDW summary tables to
utilize BO for the reporting and it’s decommissioning the whole CRDW and creating the mapping to
point the same logic from EDWard core to EDWard summary tables utilize the BO based one report
period.
Responsibilities
 Understanding process as per the TDD documents.
 Knowledge EDWard process implementation and involved into preparation of Mapping
docs,DB work books, TDD design, Change log preparation.
 Responsible for Data Profiling, Data Cleansing, Data Standardization.
 Creating LDO’s with different source tables.
 Profiling the Data from the current Source systems and identify Data Quality rules for
cleansing and standardization
 Creating Data Quality dashboards for Data Quality monitoring
 Performining Data De-Duplication using Informatica Developer.
 Maintained standard documentation and templates related to development.
 Involving UNIT TESTING and migration checklist.
 Provide SIT/UAT support
Project #3
Project Domain Logistics .
Project Name: DF(Datat foundation)
Client Maersk, Denmark.
Role Sr. Developer.
Organization UST Global
Duration June 2013 – Sep 2014
Team Size 15
Environment Informatica Power Center 9.5, MQ, Teradata, UNIX, hp QC.
Description :
Maersk has different subject areas that come under DATA FOUNDATION, Maersk is a collection
of companies operating within two main industries of shipping and energy. It has four core businesses
which include Maersk line, APM terminals, Maersk Oils and drilling.
DF Contains several modules like VODKA, DND, PDIS, SFDC, and SCV etc.., the main purpose
vodka project is pulling data from MQ and loading into different layers like STG, HST and SIM layer.
Responsibilities
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4.  Understanding process as per the TDD documents.
 extracting data from MQ, SFDC,SAP Sources and Loading data into Database as Teradata.
 Involved in IBM WEB Sphere MQ and XML Parser Transformation.
 Involved in PDO, TPT and Temporal concepts.
 Developed Mappings for reusable using Informatica Power Center Designer.
 Preparing Test cases and executing.
 Involving UNIT TESTING and migration checklist.
 Involved in solving TPR’s In SIT Support
Project #2
Project Domain Finance .
Project Name: SCUF
Client Shriram Group,India
Role ETL Developer.
Organization UST Global
Duration Sep 2012 – May 2013
Team Size 8
Environment Informatica Power Center 8.6.1, Oracle 10g, SQL Server 2008,
UNIX.
Description :
The objective of the project is to design and build a data warehouse for maintain Finance related
data and generating reports for company Shriram value services, for query and analysis using the
Informatica data was extracted from SQL Server data sources and flat files, cleansed, Transformed &
loaded in a separate data base using Informatica. These final reports and statistical analysis helps the
decision makers to take better forecasting decisions. SCUF is a Conversion project for different
geographic across the India.
Responsibilities
 Preparing and reviewing the Technical Specifications.
 To Develop an ETL processes using Informatica to load data from various data sources to
target Data Warehouse.
 Developed Mappings and Mapplets for reusable using Informatica Power Center Designer.
 Worked with Several Transformations to frame business logic.
 Attending the Calls in case of any issues during the development.
 Preparing Test cases and executing.
 Involving UNIT TESTING and migration checklist.
Team size: 5
Projects (Projects are in reverse chronological order)
Project #1
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5. Project Domain Finance .
Project Name: Retail Sales Data mart
Client Nokia
Role ETL Developer.
Organization UST Global
Duration June 2011 – Aug 2012
Team Size 8
Environment Informatica Power Center 8.6.1, Oracle 10g, SQL Server 2008,
UNIX.
Description:
The objective of the project is to design and build a data warehouse for sales of products for
company Nokia, for query and analysis using the Informatica data was extracted from oracle data
sources and flat files, cleansed, Transformed & loaded in a separate data base using Informatica. These
final reports and statistical analysis helps the decision makers to take better forecasting decisions.
Retailer Sales Data Mart is a Conversion project for different geographic across the Globe.
Responsibilities
 Involved in creation of Detailed ETL Mapping design document for development.
 Involved in the tuning the mappings to achieve performance.
 Developed mappings using Informatica Power Center Designer to load data from various
source systems to target database.
 Extensively used ETL to load data from Oracle and Flat files to Data Warehouse
 Extensively involved in the slowly changing dimension mappings.
 Used various transformations like Source qualifier, Aggregators, lookups, Filters,
Sequence Generators, Routers, Update Strategy, Expression, Sorter etc.
 Prepared the Unit Test Cases and executed them.
Team size: 5
Declaration
I, do, hereby declare that the above-furnished details are true and correct to the best of my knowledge.
Place: Bangalore (Signature)
Date:
5

6. Project Domain Finance .
Project Name: Retail Sales Data mart
Client Nokia
Role ETL Developer.
Organization UST Global
Duration June 2011 – Aug 2012
Team Size 8
Environment Informatica Power Center 8.6.1, Oracle 10g, SQL Server 2008,
UNIX.
Description:
The objective of the project is to design and build a data warehouse for sales of products for
company Nokia, for query and analysis using the Informatica data was extracted from oracle data
sources and flat files, cleansed, Transformed & loaded in a separate data base using Informatica. These
final reports and statistical analysis helps the decision makers to take better forecasting decisions.
Retailer Sales Data Mart is a Conversion project for different geographic across the Globe.
Responsibilities
 Involved in creation of Detailed ETL Mapping design document for development.
 Involved in the tuning the mappings to achieve performance.
 Developed mappings using Informatica Power Center Designer to load data from various
source systems to target database.
 Extensively used ETL to load data from Oracle and Flat files to Data Warehouse
 Extensively involved in the slowly changing dimension mappings.
 Used various transformations like Source qualifier, Aggregators, lookups, Filters,
Sequence Generators, Routers, Update Strategy, Expression, Sorter etc.
 Prepared the Unit Test Cases and executed them.
Team size: 5
Declaration
I, do, hereby declare that the above-furnished details are true and correct to the best of my knowledge.
Place: Bangalore (Signature)
Date:
5