Rakesh sr dwh_bi_consultant resume

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Rakesh Kumar
Senior DWH / BI Consultant
Mobile: +353 8941662855 E-mail: rakesh.ie.dublin@gmail.com
ProfessionalExperience:
 11+ Years of IT Industry experience in Analysis, Design, Development, Maintenance and
Support of various software applications mainly in Data Warehousing (Informatica Power
Center, OWB, SSIS and Business Objects), Oracle (SQL,PL/SQL) and Teradata in industry
verticals like Finance, Telecom, Retail and Healthcare.
 Work experience in client facing roles in UK and Ireland.
 Performed numerous roles in Business Intelligence projects as Data warehouse System
Analyst, ETL Designer, Onshore coordinator, Technical Lead and Senior Data warehouse
Developer roles with multinational IT result-driven organizations
 Extensive experience on Data integration projects accessing sources like Teradata, Oracle
and SQL server.
 Created robust EDW Solution from various types of sources like Flat files, XML Files,
EDCDIC Cobol copybook from Mainframe systems, DB2 Unload files.
 Extensive experience on Data discovery, cleansing using Informatica IDQ.
 Resolved Inconsistent and Duplicate Data issues during Data Analysis to Support Strategic
EDW Goals.
 Extensive experience of Data Integration using Informatica Power center Tool stack.
 Strong knowledge on Data Warehousing concepts, ETL concepts, Data Modeling,
Dimensional Modeling.
 Conducted training on Informatica and have achieved awards for proficient training
capabilities.
 Excellent understanding of OLTP and OLAP concepts and expert in writing SQL, Stored
procedure on Teradata, Oracle and SQL Server.
 Extensive experience in implementing Data Warehousing methodologies including STAR
SCHEMA and SNOW-FLAKE SCHEMAS & 3NF for huge data warehouses.
 Extensive knowledge on Change Data Capture (CDC) and SCD Type 1, Type 2, Type 3
Implementations.
 Excellent understanding of Kimball and Inmon Methodologies.
 Provided leadership when addressing high level technical issues and questions with the
functionality of the reporting and business intelligence applications.
 Managed the current and strategize to foresee and plan for the future engineering needs in
Data Integration space.

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 Performed roles as a interface and coordinator between Database Administration, ETL
Development, Testing teams and reporting teams to eliminate the road blocks for smooth
flow of information.
 Hands on experience in tuning ETL mappings, identifying and resolving performance
bottlenecks in various levels like sources, targets, mappings, and sessions.
 Expert in designing and developing of complicate ETL mappings using Informatica
PowerCenter.
 Proficient in optimizing performance issues using Informatica PowerCenter and Teradata.
 Having experience on using Teradata utilities (TPT, BTEQ, Fast Load, MultiLoad, FastExport,
Tpump).
 Exposure in writing Shell Scripting as per given requirement.
 Work extensively in Teradata GCFR tool.
 Experience in SAP ECC integration with Informatica.
 Got training in Tableau, Qlik View& SAP BW 3.5and done POC for the same.
TechnicalSkills:
ETL Tools : Informatica 6.2/7.1/8.x (Certified)/9.1/9.5/9.6, OWB 10.2
Reporting Tools : Cognos Controller, Business Object R3, Tableau
Language : SQL, PL/SQL, Unix scripting
Database : Oracle 8i/9i/10g, DB2,SAP ECC, Teradata 12.0/14.0
Operating System : Window NT/2000, UNIXAIX
Other Tools and System : IBM Clearcase, SVN, HP ALM
ProfessionalExperience: (11+ Years)
Designation Company Duration
Team Lead Accenture, Ireland Jul 2010 to Till Date
Senior Technical Associate Tech Mahindra Dec 2008 to June2010
Assistant System Engineer Tata Consultancy Services Sep 2005 to Dec2008
Software Engineer IT Thought Consulting Pvt Ltd Sep2003 to Sep 2005
Projects:
1. Project : Enterprise Data Warehouse Solution
Client : Bank of Ireland, Ireland
Environment : Informatica 9.6, Teradata FSLDM
Database : Teradata 14.0
Duration : Nov 2014 to till date
Role : Technical Lead and ETL Designer

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As ETL Tech Lead/Designer:
 Lead a technical team of Informatica and Teradata developers of around 15 members
 Worked as a senior ETL Designer for writing technical designs during various hops of ETL
loads like Staging load , EDW load and Datamart load
 Worked a technical subject matter expert in Informatica and Teradata
 Liaise with various stakeholders teams like functional design team, Data modelling team ,
Data mapping team, DBA team and Testing team
 Completely owned the delivery and coordination with offshore team
 Primary owner as a point of contact for quick and robust resolution of testing team queries
and defect resolution ensuring high quality of delivery
 Point of contact for Admins for all major, minor releases and also the change requests into
various higher environment like SIT, UAT and PROD
 Worked closely with configuration manager to ensure smooth code baseline and
deployment process
 Responsible for high level detailed system design functions including the development of
data flows, technical development specifications, documentation and contributed to the
changes to accommodate the new source system requirements in designs.
Project & Client Description:
Bank of Ireland is one of the Ireland’s largest banking services companies. It operates primarily
in UK, Northern Ireland and Republic of Ireland countries, providing the finance and banking
service with large number of products. BOI has its headquarters in Dublin, Ireland.
The project is about developing a strategic Business Intelligence Solution for the bank to extract
data from various disparate source systems like mainframes, Global markets oracle servers etc
and provide cut edge capability in Basel III compliance and regulatory reporting.
2. Project : FSM Release 1.0
Client : Baker Hughes, USA
Environment : Informatica 9.5, SAP ECC
Database : Oracle 11g
Duration : Oct 2013 to Nov 2014
Role : Technical Lead
As ETL Tech Lead:
 Performed detailed system analysis and design functions, including the development of
data flows, system development specifications, documentation and contributed to the

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changes to accommodate the new feed requirements in logical and physical data modelling.
 Conducted design review meetings with Developers to explain the design and advice on
development strategy
 Advised on Informatica Baseline Architecture Deployment procedures and Best Practices.
 Effectively communicate with BI developers providing guidance on utilization of data
warehouse concepts to enable reporting requirements.
 Architected Informatica ETL to integrate the new feeds coming in for new region.
 Developed the Proof of concept code using Informatica Power Center, SQL, PL/SQL, UNIX.
 Liaised between Database Administration, ETL Development, Testing teams and reporting
teams to eliminate the road blocks for smooth flow of information
 Conducted stand up meetings to review the daily development progress and gauge the risk
if involved any and communicated the same to management
 Provided code reviews for Business Logic, Best Practices, Naming Standards, Performance
Tuning Guide Lines at Informatica and Database level
 Reviewed the change requests with Change Request Management Board that needs to be
deployed to Production environment
 Participated in the UAT to make a note of changes that do not exceed the scope
 Verified the post deployment results to make sure the production deployed code is
performing as per the business requirements.
 Participated in the Concept and Technical review committee to review new projects in Data
Governance
 Managed the off-shore and onsite ETL Development teams, providing timely clarifications
and guidance, monitoring the progress on a daily basis following the SCRUM methodology
 Managed, mentored and provided guidance to the development and testing teams
throughout the project process
Project & Client Description:
Baker Hughes is one of the world's largest oilfield services companies. It operates in over 90
countries, providing the oil and gas industry with products and services for drilling, formation
evaluation, completion, production and reservoir consulting. Baker Hughes has its
headquarters in the America Tower in the American General Center in Neartown, Houston.
North America Truck Treating- To process the SAP ECC data to click software.
3. Project : EDW SDP Release
Client : VMware, USA
Environment : Informatica 9.1, OBI

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Duration : April 2013 to Oct 2012
Role : Tech Lead
As Tech Lead:
 Performed detailed system analysis and design functions, including the development of
data flows, system development specifications, documentation and contributed to the
changes to accommodate the new feed requirements in logical and physical data modelling.
 Conducted design review meetings with Developers to explain the design and advice on
development strategy
 Advised on Informatica Baseline Architecture Deployment procedures and Best Practices.
 Effectively communicate with BI developers providing guidance on utilization of data
warehouse concepts to enable reporting requirements.
 Architected Informatica ETL to integrate the new feeds coming in for new region.
 Developed the Proof of concept code using Informatica Power Center, SQL, PL/SQL, UNIX.
Project Description:
This project aims to create a Business Intelligence solution to build the capability to measure
and monitor the SDPprogram effectiveness & success and provide information required to
support business activities, build reports to verify system and data set ups, and create analytical
reports to monitor the health of the business, identify trends, and highlight key areas of action.
The SDP program is a set of new policies, processes and systems to support new subscription
business models to VMware customers through the VMware channel.
This initiative provide increased availability of SDP information to Business and offer insights
into key metrics while also enabling data visibility throughout the organization, better analysis,
and improved decision-making and providing analytical/reporting capabilities. By offering a
consolidated view of relevant metrics, it would help decision maker’s act using the most current
data. It will also enable management by collecting historical data and enabling performance
trending over time thereby providing actionable data to manage projects/resources and take
data-driven decisions by utilizing standardized reporting as a unified method of determining
performance.
4. Project : Intertek Datawarehousing
Client : Intertek, UK London
Environment : SSIS, Cognos,BPC & BO Crystal Report

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Database : Teradata & SQL Server
Duration : April 2011 to March2013
Role : Team Lead
Responsibility:
 Analysis of Requirement with on site counterpart.
 Do the Gap analysis and provide the details of release date.
 Prepared the mapping to monitor the ETL Batch jobs.
 Verify source data validation procedure for the new and existing loads.
 Developed the capabilities, Succession Planning, Cross skilling of resources. Identify and
organize various training Soft Skill, Technical etc. as per the need.
 Responsible for ensuring team works to agreed quality, standard & best practices are
followed.
 Designing the ETLs and conducting review meets Involvement in implementation of BTEQ
and Bulk load jobs.
 Developed MLOAD scripts to load data from Load Ready Files to Teradata Warehouse.
 Created BTEQ scripts to extract data from warehouse for downstream applications.
 Worked on Teradata Query man to validate the data in warehouse for sanity check.
 Prepared the deployment document and verify all changes made by Team.
 Doing troubleshoot whenever is required.
 Work closely with the Delivery Manager to define the processes and procedures for
delivery. Facilitate smooth handover of development to delivery manager.
Description:
Run business-critical applications, including Exchange, SQL, SAP, and Oracle, on VMware
vSphere with breakthrough performance and outstanding reliability. An instance of licensed
products purchased by end customers directly or through other channels from VMware. Track
details of deployment including location, status, ownership, contract coverage and history of
changes .Customers are provided with a license key upon purchase of any software product.
Once issued, VMware tracks this license by product for each order within the Install Base
module. We can track different booking status with the help of report.
5. Project : Marketing BI
Client : VMware, USA
Environment : Informatica 8.6.1, OBI
Duration : Jul 2010 to March 2011
Role : ETL – Lead
Responsibility:

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 Analysis of Requirement with on site counterpart.
 Do the Gap analysis and provide the details of release date.
 Prepared the mapping to monitor the ETL Batch jobs.
 Verify source data validation procedure for the new and existing loads.
 Developed the capabilities, Succession Planning, Cross skilling of resources. Identify and
organize various training Soft Skill, Technical etc. as per the need.
 Responsible for ensuring team works to agreed quality, standard & best practices are
followed.
 Prepared the deployment document and verify all changes made by Team.
 Doing troubleshoot whenever is required.
 Work closely with the Delivery Manager to define the processes and procedures for
delivery. Facilitate smooth handover of development to delivery manager.
Description:
Run business-critical applications, including Exchange, SQL, SAP, and Oracle, on VMware
vSphere with breakthrough performance and outstanding reliability. An instance of licensed
products purchased by end customers directly or through other channels from VMware. Track
details of deployment including location, status, ownership, contract coverage and history of
changes .Customers are provided with a license key upon purchase of any software product.
Once issued, VMware tracks this license by product for each order within the Install Base
module. We can track different booking status with the help of report.
6. Project : Global Service Data warehouse
Client : British Telecom, UK
Environment : OWB 10.2, BO XI, OBI
Duration : Jul 2009 to June 2010
Role : ETL – Lead
Responsibility:
 To Monitor the ETL job for different source system.
 Pro-active awareness and response to all incidents and a mindset of continuous
 Improvement. Responsibility of incident resolution lies with ASG teams.
 Monitor queues on the Incident Management System (BRIDGE CLARIFY); respond to and
 Resolve incidents within the SLA.
 Work with development teams to ensure that Service Desk scripts both for newly deployed
 Applications and to reflect changes from major releases are delivered.
 Ensuring Incident Records are updated during the life of the incident to keep other
 Stakeholders informed of progress.

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Description:
Global Service Data warehouse is support project. This data warehouse provides the different
kind of report. This system deals with Reuters’ and 21CCE data. We have more than 80 source
system in this project and we extract data through OWB and Package. We are using 10g and
Unix as HP aix.
7. Project : Traicare Encounter Data
Client : ABSi, USA
Environment : Informatica 8.x, Business ObjectXI, Cognos 8
Database : DB2
Duration : Nov 2007– Dec 2008
Role : ETL-Tech Lead
Responsibility:
 Collecting the requirements for Traicare Encounter Data Change Requests (CRs).
 Analysis of Change Request
 Developing and updating Informatica mappings
 Perform debugging and tuning of mapping.
 Involved in preparation of test cases and testing of mapping.
 Preparation of ETL mapping documents.
 Change in the Shell Script as per given requirement.
Description:
Processing Health Care Records received from Managed Care Support Contractors worldwide,
verification of the accuracy of the same and checking the legitimacy of payments.
The project mainly involves the maintenance of the modules which were migrated for Health
Care Service Records (HCSR) and Tricare Encounter Data (TED) data from IBM
OS/390(Mainframe System) to DB2.
The Executive Information/Decision Support (EI/DS) Program Office (PO) has the mission to
provide multilevel Healthcare management information by receiving, editing and processing all
data as a result of healthcare encounters for the military active duty, retirees and their
dependents.
8. Project : ITO Reporting Dev Release .
Client : GE, (Energy), USA
Environment : Informatica 7.1, Business Object XI
Database : Oracle 9i

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Duration : Jan 2007 – Oct 2007
Role : ETL-Developer
Responsibility:
 Creating Informatica mappings, mapplets and reusable transformations.
 Creating session & scheduling of session for loading data.
 Created various Transformations like Lookup, Joiner, Aggregate, Filter, Expression, Router,
and Update Strategy.
Description:
Objective of this project is to modify the existing Data Warehouse so that it can provide the data
to the fastest changing reporting requirement. Here I worked with ETL team where my work
was to design Informatica mapping for data cleaning and massaging.
9. Project : APeX-Informatica Integration.
Client : GE,(Energy), USA
Environment : Informatica 7.1
Duration : August 2006 – Nov 2006
Responsibility:
 Creating Informatica mappings and reusable transformations.
 Create the Shell Script for different purpose.
Description:
The proposed project includes data integrations between IBS and TPS with various ERP
instances. Currently these integrations are present in WebMethods and need to be converted to
Informatica. Please note that files sent to or originating from TPS and IBS would be in Cobol file
structures. Also please note that ES GAP is a new ERP instance for which there are no
Webmethods interfaces currently existing.

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The different integrations required for the above purpose are:
1) TPS source and 5 Target ERP instances: There are 5 such interfaces.
2)5 ERP instances feeding into TPS: There are 3 such interfaces.
3) IBS source and 6 target ERP instances: There is one such interface.
10. Project : Data Stream (DS) To Informatica Migration.
Client : GE, (Energy), USA
Environment : Informatica 7.1
Duration : April 2006 – July2006.
Responsibility:
 Creating Informatica mappings and reusable transformations.
Description
The business’ IM environment uses a version of the Decision stream tool associated with its ERP
and non-ERP databases that is supported by the Cognos Decision Stream and not certified with
its Oracle 9i upgraded databases. This is to perform the migration of Decision Stream
jobs/builds to Informatica to ensure compliance with GE tech stack and to reduce business risk
from inter-compatibility and lack of vendor support.
11. Project : Sourcing Dashboard
Client : GE, (NBC Universal), USA
Environment : Informatica 7.1, Business Object 5.1, Java
Duration : Sep 2005 – March 2006.
Responsibility:
 Creating Informatica mappings, mapplets and reusable transformations.

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Description:
NBCU requires improved presentation on Spend data after integration of Universal spend data
to the existing NBCU Sourcing Dashboard. The purpose of this project is to create a DWH and a
Reporting Interface which would help NBCU to have a better control of the Spend. This will
enable NBCU to leverage best-sourced deals and better controls, resulting in improved
processes and reduced cost to NBCU.
Major Project Functionalities includes:
 Addition of following new Interfaces
o Orlando and Hollywood (JDA, Maximo, Eatec)
o Universal SAP, Infinium,
o PCARD/ePCARD (Universal, SAM, Vista Studio)
o eBUY Universal
o VISTA TV, VISTA Studio and VISTA Film, Amex
 Dashboard for Digitization
 Adhoc and Standard Reporting across
o Organization Hierarchy (NBC and Universal)
o Commodity Hierarchy and Vendor Hierarchy
Training & Certifications Accomplished
 Informatica 8.x Certified Developer
 IBM Certified Database Associate
 Qlik View Trained
 SAP BODS and IBM Datastage Trained (July 2013)
 SAP BW Trained
 SAP BO
.
Education:
 MSc. Computer Science, First Class, 2003, National University, New Delhi, India.

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