Abhishek Ray has over 9 years of experience in data warehousing and ETL. He has expertise in designing and developing data warehouses, data modeling, ETL processes, and reporting solutions. Some of his skills include Oracle PL/SQL, Unix, Java, C, Oracle databases, ODI, and OFSAAI. He has worked on banking data warehouse projects for clients like Mizuho Bank and NAB. Currently he is working as a principal consultant on a Basel III CRD IV development project for Mizuho Bank.

1. Abhishek Ray
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Mobile : +91 8971299310
Email : abhishek.m.ray@gmail.com
Skills Summary
Over 9 years of comprehensive & in-depth experience in the Information Technology (IT) industry with
specialization and expertise in Data Warehousing and ETL. Accomplished Data Warehouse Architect, Data
scientist, Designer and Developer.
 Efficient in each phase of BI development life cycle, from Requirement Gathering to business analysis
and Data warehouse design and implementation of Banking & Telecom Software Application/Data
Ware Housing systems.
 Experienced in managing the database design, data analysis, development, data mapping, data
Modelling(relational/dimentional) & performance tuning.
 Extensive knowledge end to end ETL & data migration tools like Oracle Data Integrator (ODIEE)
which includes Installation, development of Interfaces, creating custom knowledge modules (KM’s),
Repository Migrations etc.
 Strong Programming & debugging skills in Oracle SQL, PL/SQL, ETL, UNIX shell scripting & Java.
 Experienced in Distributed Oracle database 11g & 12g.
 Good Knowledge in Oracle Financial Services Analytical Applications Infrastructure Software
(OFSAAI).Implemented EPM and ERM projects for various banks. Expertise in Basel III & FSDF
applications. Conversant in both building applications using ICC and Run rule framework.
 Experienced in SQL*Loader, UTL_FILE, Optimization using (Explain Plan).
 Experienced in Designing and Implementing Data Quality Frameworks.
 Interaction with Client's Representatives and analysing the change impact (requirement) suggested
by the client on the system.
 Good understanding of Banking Domain (Global Data Warehouse & Oracle Banking Platform).
 Basic understanding and hands on experience of Big Data Analytics.
 Basic understanding and hands on experience of reporting tools like OBIEE and MicroStrategy.
 Basic understanding of web based Technologies - Java, Jsp and HTML.

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Academics:
Examination Board / University Years of Study Percentage
B. Tech.(I.T.) KIIT Deemed University 2002-2006 86 %
10+2 HSC (C.B.S.E) , D.A.V Public School 2000-2002 75.4 %
10th SSC (C.B.S.E) , D.A.V Public School 1999-2000 77.6 %
Certifications:
Examination University Certificate/Link Years of
Study
Percentage
OCA Oracle Corporation 2007 95%
Big Data Specialization University of
California, San
Diego
https://www.coursera.org/account/a
ccomplishments/certificate/GK8SG
K3J85A6
2015 95 %
Database Management
Essentials Specialization
University of
Colorado System
https://www.coursera.org/account/a
ccomplishments/certificate/QGK5H
Q8MGLRK
2015 92 %
Skills Profile:
Work Experience:
Domain Data Warehousing,ETL (Data Migration) , Oracle Data
Integrator (ODIEE), Data Modeling,OFSAAI
METHODOLOGIES Bill Inmon’s, Ralph Kimball
Programming Languages : Oracle PL/SQL, Unix,Java,C
Database : Oracle 10g & 11g
Effort Management Tool : Toad,SQL Navigator,Sql Server, Oracle Hyperion DRM,PLSQL
Developer, OFSAAI,ODIEE
Configuration Management Tools : Visual Source Safe(VSS),Borland Starteam
Operating System/Environment : Window NT/XP/VISTA/7,AIX 6.1,UNIX,Sun Solaris

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Current Project
Project Title BASEL III CRD IV Development
Project type Data Warehouse & Analytics (Enterprise Risk Management)
Client Mizuho Bank
Company
Oracle Financial
Period Aug 2014 – Till date
Role Principal Consultant
The Project This Program is created to enhancing the existing Basel 8.0.1 application to
incorporate changes related to Regulation of the European parliament and of the
council of 26 June 2013 on prudential requirements for credit institutions and
investment firms and amending Regulation referred to as CRD IV.
CRD IV is an EU legislative package covering prudential rules for banks, building
societies and investment firms.
Responsibilities My responsibilities as follows –
 Led the technical team responsible for the Development of the Basel III
Product for the European Region.
 Conceived the design and creation of data model for Data Warehouse
needs. Developed processes to extract, transform and integrate
operational data into data warehouse and build/configure the rules for the
Basel Engine.
 Built the ETL architecture and Business specific Data Transformations
(source-target mapping) for the process Dataflow (ODI/Oracle/Plsql).
 Provided strategy related to data cleansing, data quality and data
consolidation.
 Built and designed the rules/metadata required in OFSAAI to carter to the
BASEL III CRD accord.
 Interacted with the business/functional counterparts on regular basis to
consolidate and analyze the requirements and present them the technical
design results and solution.
Databases/ Languages OFSAAI,11g Developer Suite/ PL/SQL
Tools OFSAAI,PLSql Developer, OBIEE,ODIEE
Past Projects

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1.
Project Title NextGen Ubank Direct Bank release
Project type Data Warehouse for Information Analytics Platform
Client NAB, Australia
Company
Oracle Financial
Period May 2012 – Aug 2014
Role Principal Consultant
The Project NAB’s NextGen Program delivers Information Analytics Platform which is
proposed to work on top of Core Banking Suite. It aims at building interfaces
between various NAB legacy systems and OFSAAI,which helps in migrating data
from various systems and building a data warehouse .It also supports various
banking analytic applications like Funds transfer Pricing(FTP),Financials
Accounting Hub(FAH),GL-RECON, Credit risk engine(CRE) etc .
It also source data to NAB’s legacy data warehouse Global Data Warehouse
Repository (GDW) which acts as Provide Management, regulatory (KRM) and
compliance related information. Some more details on the data sent to GDW are:
 Provision of valuable customer/ product/ channel/ banker business
intelligence for both strategic and operational decision making.
 Operates by capturing data at the lower level (“events”, “measures”, etc)
as per business needs, for all accounts and services (“arrangements”)
with appropriate relationship dimensions (customer, banker, product,
channel, etc).
 Relevant data attributes from the disparate customer ledger systems are
extracted and translated into standard global formats called Global Entry
Point (GEP) which then get loaded into the GDW database with
relationship structures.
Responsibilities My responsibilities as follows –
 Worked on Analysis, Design, and Development of Information Analytics
Platform.
 Helped in design and creation of data model for Data Warehouse needs.
Developed processes to extract, transform and integrate operational data
into data warehouse
 Built the ETL architecture and Business specific Data Transformations
(source-target mapping) for the process Dataflow (ODI/Oracle/Plsql).

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 Created the Design for Extraction process to legacy systems using
combined techniques of Data Replication, Change Data Capture (CDC)
and slow changing dimensions (SCD).
 Provided strategy related to data cleansing, data quality and data
consolidation
 Interacted with the business users on regular basis to consolidate and
analyze the requirements and present them the design results and
solution.
 Built the ICLM framework which uses binary coding to identify the various
irregularities associated with the customer account.
Databases/ Languages OFSAAI,10g Developer Suite/ PL/SQL
Tools OFSAAI,PLSql Developer, OBIEE,ODIEE
2.
Project Title Bonus Pension Fund
Project type Market Risk
Client Bonus Pensionskassen AG, Austria
Company
Oracle Financial
Period Aug 2011 – April 2012
Role Senior Consultant
The Project This project aims at Computing Risk of portfolios due to change in market factors
like Equity Prices, Interest Rates, Exchange Rates, Commodity Prices etc using
Multiple VaR Methodologies like Analytic (Variance Covariance Models) ,Monte
Carlo Simulation & Historical Simulation.
Responsibilities As a Senior Consultant my responsibilities as follows –
 Maintaining the data warehouse for Market Risk application.
 Metadata configuration
 Support the Pension funds Decision Support Systems (DSS).
 Building the Data Transformations for the process Dataflow(Oracle/Plsql)
 Interact with the customer to get the Sign off for the successful
Implementation.
Databases/ Languages OFSAAI,10g Developer Suite/ PL/SQL

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Tools OFSAAI,PLSql Developer, Erwin
3.
Project Title i-ON Application
Project type Master Data Management, Capital & Vendor Forecasting
Client Deutsche Bank, Germany
Company
TCS
Period Jan 2011 – Aug 2011
Role IT Analyst
The Project The project aims to build an application which could be combined to streamline
processes and provide more efficient, accurate and consistent executable
forecasting of vendor and capital. It also plans to build a Master Data Source
which would act as the reference data for various applications running in the
platform. Planned release which will reduce manual efforts for different
Teams and to zero down the plan cycle data quality issues. To make the
application accessible in America, EMEA, APAC regions.
Responsibilities As a Module Lead my responsibilities as follows -
 Ownership of my module to design and build up a Master Data system
which will contain all the hierarchical data (Customer,Region,Business
Unit etc) of the organization.DRM will work on the top of this database to
help business users.
 Involved in the analysis, design and development of the data model/data
warehouse to support the forecasting application for capital, vendor &
manpower data.
 Developing processes to extract, transform and integrate operational data
into data warehouse
 Interact with client to gather various fresh requirements & Prepare the
Implementation & Delivery plans of the work Packages.
Databases/
Languages
Data warehousing,10g Developer Suite/ PL/SQL,Java
Tools Oracle Hyperion DRM ,TOAD, SQL Navigator, Oracle Developer 10g
4.

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5.
Project Title British Telecom – Enterprise Data Warehouse
Project type Data Warehousing
Client BRITISH TELECOM, UK
Company
Tech Mahindra
Period July 2008 – July 2010
Role Associate Business Analyst
Project Title SFR-BDq Application
Project type Data Warehousing / Data migration – (Analysing & finding Potential
customers)
Client SFR, FRANCE
Company
Accenture
Period July 2010 – Dec 2010
Role Senior Programmer
The Project SFR-BDq Application program is aimed at providing a business mileage to SFR's
Marketing team. The basic aim is to find more potential customers which SFR can
think to sell its products and enhance its revenue.
Responsibilities As a Senior Developer my responsibilities as follows -
 Ownership of my module where we have to integrate & maintain data
coming from various sources. E.g man-machine interfaces or data bought
by SFR through various data services.
 Creation of the mappings in Datastage and maintenance of different
customer accounts in staging database.
 Providing the list of prospective customers to the marketing team.
 Interact with client to gather various fresh requirements & Prepare the
Implementation & Delivery plans.
Databases/
Languages
Data warehousing,10g Developer Suite/ PL/SQL
Tools TOAD, Oracle Developer 10g, Datastage

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The Project British telecommunications plc, which is one of the organization that provides
telecom infrastructure services & sells voice, broadband, and data
communications products to fixed(corporate and government customers), mobile
network operators (MBNL,O2 and Vodafone) and also to the end users. It
operates in BT Global Services, BT Retail, BT Wholesale and Openreach.BT
maintains customer, product and Billing information. The business data needs to
be migrated from BT legacy systems to new stack strategic systems.
The project mainly aim is to analyze the trades and revenue in day wise, week
wise, month wise, quarter wise and year wise. The data is maintained historically.
This Data warehouse plays a major role in enabling various reports to view the
data at a lowest level and help them to make decision to bring more revenue to
company with new policies.
Responsibilities As a ETL/data warehouse Analyst my responsibilities as follows -
 Ownership of my module where we had to analyze all the systems
involved in the iVPN2 & MPLS data life cycle. Focus was on to build
mappings, validations & accurate data transformation on the new stack
(BFG) as the legacy stack (SMARTS, IVSERVE, MTNI, CLASSIC, EDCA)
might have differences in the product hierarchy and data physical
structure.
 Building a Data Warehouse to improve overall quality and productivity of
existing processes and organizing reliable and accurate information.
 Extracting data from different sources like relational tables, Flat files and
transformed the data based on Business requirements using OWB,
and loading into Oracle target database, by running the jobs/workflows.
 Help the BT business team with ad-hock reports, where in they can
improve the process which would have direct impact on greater revenue
& profit.
Databases/
Languages
10g Developer Suite/ PL/SQL,Java
Tools OWB,TOAD, SQL Navigator, VSS, Starteam,Oracle Developer 10g

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6.
Project Title BTGS-MDM-SAC (BT Global Services – Master Database Management)
Project type Data migration - Analysis & Solution
Client BRITISH TELECOM, UK
Company
Tech Mahindra
Period June 2006 – July 2008
Role Sr.Technical Associate
The Project The biggest business challenge of the AGORA (ETL based) is the migration of
order data, customer data, distributor data, inventory data and other relevant data
from disparate source systems into a single centralized database system BFG.
The source systems to be migrated to BFG are (Orion, Classic, IPMS, TPS, and
IMS) based on disparate technologies – Oracle, Microsoft & file based database.
BT Global Services planned for migration of all necessary data to BFG, and then
uses a single trouble ticketing window Expedio FM.While loading source system
data into BFG, there are needs to map, merge & transform customers, sites and
their inventories existing in multiple source systems based on their master-child
relationship defined by the GS business. The customer data, order data, inventory
data etc are being captured in disparate source systems on a daily basis, whereas
the single trouble ticketing platform for service assurance is the same BFG /
Expedio FM. This necessitates the source system data to be refreshed in BFG on
daily basis. The challenge here is to identify & process the changed (delta) data
daily from disparate source systems. AGORA program provides a complete &
strategic solution to all the above mentioned challenges and has proved to be a
major & critical platform in BT Global Services.
Responsibilities As a member I am involved in different work packages in different Role and responsibility
as below:
 Ownership of loading activity in the ETL process (AGORA Strategic route)
 Working as Database Developer to provide Low Level Design and Oracle
Development against Change Requests and Defects. Successfully delivered
3 Change Requests in AGORA Strategic route.
 Develop ETL mappings, data transformation, stored procedures, configuration
files, tables, views, and functions; implement best practices to maintain
optimal performance.The ETL process was built in PL/SQL scripting.
 Involved in the Customer de-duplication mapping process.
 Worked in a AGILE project life cycle Prepared and implemented Test Case,
Test Plan for various Work Packages.
 Built a reporting and auto mailing layer to generate XLS/ZIP reports and mail
clients using the DBMS_UTIL package.
Databases/
Languages
10g Developer Suite/ PL/SQL,Java
Tools TOAD, SQL Navigator, VSS, Starteam

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Additional information:
Current City : Bengaluru, India
Current location : Flat – 901 ,J Block , BREN Avalon , Doddanekundi, Mahadevpura,
Bangalore, Karnataka 560048
Marital status : Married
Date of birth : 29/08/1984
Passport No : M7396339
Citizenship : Indian
National Skill Registry Pin : 771001132302