SANDIPAN BHATTACHARJEE
Itz.sandipan@gmai.com|C: +1-847-246-2128
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10+ years of comprehensive & in-depth experience in the Information Technology (IT) industry with specialization and expertise in Data Warehousing and Business Intelligence area.
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7+ years of Experience on Ab-Initio.
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Does requirements gathering, Source Data Analysis and Source to Target Mapping.
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Significant Involvement in designing Data Marts using Ralph Kimball methodology. Having awareness of
Bill Inmon methodology.
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Hands on experience in doing estimation and develop end to end ETL framework.
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Domains worked in Insurance, BNFS, Telecom and Power Sector.
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Involves in
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Proficient in Data Modeling
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Having exposure of working in customized Agile setup
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Years of experience at customer location and at offshore location. Well versed with GDM.
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Experience in working in a cross functional team environment, provide mentoring, conducting performance appraisals, knowledge transfer sessions, provide leadership and support in DW solutions.
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Self starter with the ability to work in a dynamic environment with ability to handle multiple tasks and changing priorities while working with a high degree of accuracy.
Technology Interface
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OPERATING SYSTEMS -Windows XP, UNIX, Sun Solaris, MVS
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DATAWAREHOUSE TOOLS - Ab Initio
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METHODOLOGIES - Ralph Kimball, Bill Inmon’s
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LANGUAGES - SQL, PL/SQL, Visual Basic
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DATABASES - IBM DB2 UDB, Oracle 11G/10G,, MS SQL Server
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DB Tools – TOAD, SQL Developer
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Schedulers – TIVOLI
Conceptual Interface
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Ab Initio – Continuous Graph, Conduct IT
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BRE
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ACE
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ERwin
Education
B.Tech in Instrumentation from Haldia Institute of Technology (Vidyasagar University)
Current Organization: SYNTEL
Past Organizations: L&T InfoTech, IBM India, SYNTEL and TCS

SYNTEL Ltd From July ,2010 to Till Date
Domain: Insurance
Client is one of the top leading Insurance companies in North America (US,Canada) providing all LoBs of
Insurance minus life. As part of the Information Strategy work, the Information Services Group (ISG) is leading an effort to create an Integrated Dimensional Model (IDM) to create an integrated Allcorp Data
Warehouse (ADW) presentation/access layer. This project will help the client achieve the vision of enabling advanced analytic and business intelligence solutions in a timely manner with greater self-service capability
The project is to introduce the use of a vendor, Driver’s History Information (DHI), as a pre-screen prior to running an MVR on a driver. This project would require the system to “call out” to the vendor which would then give us the information to determine if we need to run an MVR or not and rate the business as a clean/no violation driver. The vendor will use each state’s specific violation chargeability rules as defined by Allstate to determine the result of whether a driver is clean or not. In the case where DHI reports back “clean” meaning no activity, then no MVR will be run. In the case where DHI reports back that a driver has “activity” chargeable violations including suspensions, the system would then run the MVR according to the current process and underwrite and price the driver based off of information from the MVR (just like how the system works today).
Code generator is a tool which has been developed for NEXTGEN application with the help advanced features of Abinito like PDL & Meta Programming using which generation of record structure and transformation can be done dynamically
ETRM organization is standardizing the HPQC template for all testing and will be deploying beginning
September 2014. The end result of this project would be building of a HPQC universe that retrieves data from multiple user containers. There are existing BO universes that point to a single container. At present, the client is only able to run current view reports for a small subset of the data. Having the HPQC data from all the containers available in the standard layer will allow the client to perform ad-hoc reporting against current and historical views
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Onshore ETL Lead/Offshore Project Lead –
Responsibilities:
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Project lead for end to end implementation of IDM – CLAIMS warehouse using Kimball methodologies covering over several dimensional & fact tables involving processing of over millions of records.
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Involved in client discussions for requirement gatherings, source to target mappings, high level designs, low level designs, design and finalization of end to end ETL process flow.
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Created TDD (Technical Design Document) to document end to end ETL process flow for Hybrid dimension, profile dimension.
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Created Low level design/ graph templates with overall data flow and components.
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Client discussions/ presentations related to ETL architecture/ framework, process flow, data flow over webex, IDM Case study presentation.
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Worked on performance improvement of individual graphs as well as reduction in overall cycle execution time.
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Setup/ reviews of job dependencies, TWS spreadsheets, JSDL’s.
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Provided UAT support during warranty period.
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Worked with PMO office to update/ create Change Control (CC) requests.
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Performed Performance review/ appraisal of Ap1/Ap2/Ap3 /PL grade employees.
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Interview panelist for Level 1 & Level 2 interviews.
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Managed WSR & MSR to customer.
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Involved in creation of CC (change control) and pricing sheet.
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Conducted PQI Audit and Security audit for IDM project.
Environment: Ab Initio Co>op 3.03, GDE 3.03, EME, UNIX AIX, Oracle, Tivoli, SQL developer, SQL Plus.
L&T InfoTech From Feb ,2010 to July, 2010
Domain –BNFS
Client is one of the leading banks in USA. In order to support the CitiDirect for Securities one (CDS1) decommissioning project, feeds currently supplied to downstream applications by CDS1 will instead be supplied by the Global Information Warehouse (GIW).
InvestOne concentrates around finding out ASTRA and MAINSTREAM transactions for a set of static SunGard accounts. GIW receives ASTRA, MAINSTREAM transaction details, extracts based upon these details would be built and will be sent to the downstream applications, the same way CDS1 does it currently.
Project Lead
Team Size - 6
Responsibilities:
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Co-ordinated offshore- Onshore activities provide technical details to offshore developers and recommend
Ab Initio graph design.
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Conducted graph design reviews, graph performance reviews, process design reviews.
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Conducted project review meetings, review project plan in absence of project manager.
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Identified and promoted guidelines, standards, and best practices for ETL solutions.
Environment: Ab Initio Co>op 2.14, GDE 1.14, EME, UNIX AIX, Oracle
IBM India From Dec ,2008 to Jan, 2010
Domain –BNFS
Client is one of the leading banks in Canada. To meet the basic principles of Basel II, banks need to start collecting data for credit risk and operational risks namely:-
Credit risk -- While many large banks already have in place some form of an internal ratings system for capital allocation as well as regulatory reporting systems, they lack the technology to meet the new capital adequacy requirements, such as aggregating customer risk information into a risk portfolio. More sophisticated modeling techniques and more advanced reporting tools are needed to meet capital adequacy and regulatory reporting requirements. But first, banks must ensure that their data is clean and reliable.
Operational risk -- For the first time, capital allocations in the operational area are recommended. Here, the technology needs to focus on data collection, tracking, monitoring, analysis and reporting of operational risks.
Some examples of specific enhancements to comply with Basel Commercial include technology that will:
Identify and gather key risk indicators.
Monitor databases for internal, external, current and historical data.
Gather loss data.
Identify and estimate frequency and severity of losses.
Onshore Tech Lead -
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Responsibilities:
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Analyzed source to target transformations, profile data, Identify data issues, performance improvement.
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Extensively used various components from the Ab Initio component suite, with PDL programming concepts,
component folding concepts and source to target mapping using dependency analysis.
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Identified potential performance tuning options to reduce existing processing time.
Environment: Ab Initio Co>op 2.14, GDE 1.14.15, EME, UNIX AIX, DB2
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SYNTEL Ltd From July ,2005 to Nov, 2008
Domain: Insurance
The process represents the Daily and Initial Update Processes of Claims data in the ADW standardized layer.
The current process for pulling data from the Claims Source System (Nextgen, Process Claims,ERL and
WFMS),transforming and loading into the ADW RAW layer will be leveraged to load the Standardized layer by using the existing extracts and Partition Key lookup processes created for the RAW layer, which contain
Partition key values and have fields that have been stripped of invalid characters and spaces. This data will be further transformed to common codes; validated with error logging; natural key keys will be propagated to tables; history tables will be compared and chained for tracking history of changes; data will be loaded to stage tables and updated/inserted into base tables ; logical deletes will be cascaded to child records ; transact part tables will get loaded with new activity.
The project Medbill will focus on the work to be performed to add Mitchell medical bill data to the ADW raw layers. Input data will be brought into the ADW via standardized ETL processes following common ISG
Architecture and Development guidelines. New ETL process steps created in this effort will be built as generic
ETL components that can be reused in future ETL efforts, where applicable
Offshore Module Lead –
Responsibilities:
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Analyzed Functional Requirement, interactions with end user and source Programmers for proper business understandings.
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Created low level design documents.
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Development of AB-I graphs and review.
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Unit Testing.
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Integration Testing
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Creation of wrapper scripts and job schedule for sequential execution through Unicenter during
Production deployment.
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Scheduling of AbInitio applications
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Environment: Abinitio –1.14.27, EME, Unicenter Scheduler, UNIX AIX, SQL server, Oracle –10g, SQL, PL/SQL
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.
Team Member –
Responsibilities:
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Tested various applications end-to-end and giving a bug free delivery on time.
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Tested many kinds of defects (production/development) and small modules effectively.
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Established standardized testing methodologies and providing well defined process that allowed deep analysis for every application to focus on better understanding, test planning and testing.
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Provided a solution to dev team for many defects, which came across while validating the applications
Environment: Abinitio –1.14.27, EME, Unicenter Scheduler, UNIX AIX, SQL server, Oracle –10g, SQL, PL/SQL
TCS From Jan ,2004 to June, 2005
(On Contract)
Domain: Telecom
Client is one of Europe's leading providers of telecommunications services. Its principal activities include local, national and international telecommunications services, higher-value broadband and internet products and services, and IT solutions. In the UK, BT serves over 20 million business and residential customers with more than 29 million exchange lines, as well as providing network services to other licensed operators.
Team Member –
Responsibilities:
· Played role of a Business Analyst in a tester’s skin
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Analyzed the usecases & arrived at testcases
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Tested various applications end-to-end and giving a bug free delivery on time.
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Tested many kinds of defects (production/development) and small modules effectively.
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Environment: Ab Initio Co>op 2.14, Co>op 2.13, GDE 1.14.15, GDE 1.13.22, EME, PLAN>IT, Oracle 9i/Sybase,
UNIX AIX, Shell Scripts (Korn),
Operation and Maintenance helps to improve the reliability and maintainability of plant and equipment and maintain capacity utilization and thereby increasing operating efficiency and reducing operating and maintenance costs. This includes Classification and codification of maintenance material which may be an
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equipment assembling of component maintenance tool or any other material as denied by the user e.g.
Alternators, Motors, Transformers Transmission line etc.
Team Member –
Responsibilities:
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Translating design to forms.
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UTP creation & Unit Testing.
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Environment: Visual Basic 6.0, SQL Server and Crystal Report 8.0
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