1. Varadarajan Sourirajan
Old No 149, New No 82, S2 Sriman Apts, Venkatrangam St, Triplicane, Chennai 600005
| +91 735 836 0785 | varadarajan_tcs@yahoo.com | DOB: 21-Nov-1973
https://in.linkedin.com/in/varadarajan-sourirajan-59ba849a
CAREER OBJECTIVE
Seeking a data architect position in a challenging and growing work environment, where I can
use my knowledge and experience to improve the data management system of the company. I
have extensive experience in the related field and have been appreciated and awarded for my
excellent performance.
PROFESSIONAL SUMMARY
 16+ years in Information Technology with Expertise in Data modelling for Online
Transaction Processing (OLTP) and Data Warehousing (OLAP)/ applications.
 Exposure in all phases of SDLC including requirement gathering, development, testing,
debugging, deployment, documentation, production support.
 Experienced in handling data strategy assessments to convert a legacy based to a modern
architecture.
 Involved in various projects related to Data Modelling, System/Data Analysis, Design and
Development for both OLTP and Data warehousing environments.
 Worked extensively on Sybase Power Designer, IBM Info Sphere Data Architect,
Erwin, ER Studio in several projects in both OLAP and OLTP applications.
 Have experience in handling Canonical data models like BDW, ISO20022.
 Practical understanding of the Data modelling (Dimensional & Relational) concepts like
Star-Schema Modelling, Snowflake Schema Modelling, Fact and Dimension tables.
 Comprehensive knowledge and experience in process improvement , normalization/de-
normalization, data extraction, data cleansing, data manipulation.
 Implemented Slowly Changing Dimensions - Type I & II in Dimension tables as per the
requirements.
 Experience in extracting, transforming and loading (ETL) data from spreadsheets, database
tables and other sources using Microsoft SSIS and Informatica. Developed mapping
spreadsheets for (ETL) team with source to target data mapping with physical naming
standards, datatypes, volumetric, domain definitions, and corporate meta-data definitions.
 Exposure in adopting Big Data processing in a data warehousing architecture in ETL.
 Created, documented and maintained logical and physical database models in
compliance with enterprise standards and maintained corporate metadata definitions for
enterprise data stores within a metadata repository.
 Established and maintained comprehensive data model documentation including detailed
descriptions of business entities, attributes, and data relationships.

2.  Good communication and presentation skills and established track record of client
interactions
TECHNICAL SKILLS
 Data Modelling Tools: Sybase Power Designer 16.5, IBM Infosphere Data Architect 8.1,
Erwin r7.1/7.2, ER Studio V8.x.
 ETL Tools: Microsoft SSIS and Informatica 7.1.3
 Programming Languages: SQL, Java, XML, HTML, COBOL, UNIX Scripting, VB Script, Java
Scripts.
 Database Tools: Microsoft SQL Server 2000/2005/2008, DB2, Oracle 10g/9i, MS Access,
Netezza.
 Packages: Microsoft Office Suite, Microsoft Project 2010,
 Operating Systems: Microsoft Windows 9x/NT/2000/XP/Vista/7 and UNIX
PROFESSIONAL EXPERIENCE
Tata Consultancy Services, India (MAY 2000 – Present)
Data Architect for a fortune 500 leading Bank in USA, June 2009 – present
 Implemented Reference Data Hub for the Master and Reference data conformity for the entire
Wholesale Banking.
o Modelling Reference data hierarchies, Externalizing Rule engines for Derived
attributes & Amount hierarchies are the salient features of Reference Data Hub
Implementation.
 Implemented Data warehouse and Data Mart for Profitability LOB of the Wholesale banking
o Modelling of 3 NF DW, Star Schemas for Data marts for driving Self-serve reporting
and profitability dashboards are the salient features.
 Completed a POC for replacing a Informatica based ETL with Big data processing ETL.
 Completed an architectural assessment to convert a legacy data warehouse to a modern
optimized and improvised architecture in Retail Banking LOB.
 Completed Data modelling for an application in the Healthcare subsidiary of the Bank.
 Currently implementing Data warehouse for Treasury LOB comprising of Deposits, Payments,
Trade Finance, Commercial cards for the Wholesale banking.
Data Modeler for Printing company in USA, Jan 2008 to Jan 2009
 Completed a 3 NF OLTP Data modelling for an operational System which takes care of the day
to day functioning of the company
Data Migration Consultant for a Real Estate subsidiary of a Fortune 500 Insurance
company in USA, May 2006 to Dec 2007
 Part of a data migration solution as a Data modeler for migrating data from a hierarchical data
base (Focus DB) to a relational one (SQL Server 2008)
Performed Multiple roles for a Fortune 500 world leading Insurance company
May 2000 to Apr 2006
 Performed roles as a developer, module leader & project leader for cash management and
Litigation systems of the company.
GEC Alsthom, India (Aug 1995 to May 1998)
 Design and Development Engineer for the Extra High Voltage Circuit breaker.

3. EDUCATION
PSG College of Technology, Coimbatore, TN
Master of Engineering May 1998 to Feb 2000
 Applied Electronics
 CGPA: 9.0/10.0
Crescent Engineering College, Chennai, TN
Bachelor of Engineering May 1991 to Apr 1995
 Electrical & Electronics Engineering
 82% with Second Rank holder in University of Madras.
HOBBIES
 Spiritual Photography
 Stock research and investor