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Pratik Ghosh
Address: 300 Cold Spring Road, APT#M11, Rocky Hill, CT-06067
Contact No: +1 860-834-0624
Email:pratik.ghosh87@gmail.com
KEY CAREER FACTS
 7 years of extensive professional experience in Information Technology with strong
background in the areas of ETL Design and Development in Data Warehousing
using IBM DataStage Tool including administrator set-up activities.
 Experience in building Operational Data Store (ODS) and Enterprise Data Warehouse
with the knowledge of logical and physical Dimensional modeling concept Star
/Snowflakes Schema, fact and dimension table and proficient in identification of Facts,
measures and dimensions.
 Knowledge of managing full project life cycle, including planning development,
requirement definition, application development, QA testing support and implementation.
 Expertise in handling errors and performance issues in DataStage Tool and Unix
Shell Scripting for data manipulation and scheduling task along with third party
scheduling tools like Zeke.
 Hands-on experience on all stages of DataStage with variety of source file formats
including .csv, mainframe and xml files as well as diverse databases like DB2, Oracle
and SQL Server.
 Skilled in onsite co-ordination of traditional waterfall model and agile projects with
exposure to Vendor Management related activities and RFP documentation.
 A broad understanding of Health Insurance domain with specific experience in Claims
and Medicare Compliance within HIPAA regulation and requirement with code format
including ICD 10 and ICD 9.
 Proven ability to lead and motivate teams in-order to maximize productivity.
 Results-oriented, dedicated professional with record of accomplishment for consistently
delivering effective solutions within critical time and budget constraints.
 Have excellent analytical abilities and ability to solve problems and technical flaws with
excellent communication, interpersonal and presentation skills.
EXPERTISE
 Business Intelligence (DataStage)
 Business & Technical requirements
 Data Analysis & Data Modelling
 Agile and Waterfall Methodologies
 ODS/DW Development
 Onsite Co-ordination
WORK EXPERIENCE
AETNA HEALTHCARE – Connecticut Jul 2010 – Till date
Technology Analyst / Onsite Coordinator
Medicare Analysis and Reporting System
Currently engaged in application wide impact analysis for the replacement of SSN-based HICN from
Medicare Cards with Medicare Beneficiary Identifier (MBI) because of The Medicare Access and CHIP
Reauthorization Act (MACRA) of 2015.
Onsite coordinator of the team which rewrite the Medicare revenue risk assessment model for risk
adjustment activities along with Data Integration of Coventry Data, to be housed in the Aetna
Environment.

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The improved system provides the end users with the benefits as:
 Allows for accurate forecasting of Medicare revenue and analysis of the data in support of
business objectives of growing and enhancing this line of business.
 CMS RAPS Process, MMR, MAO4, MPRW and Daily TRR Compliance and Analysis
 Financial Reporting and Performance Management
 Medical Management (Care Management & Disease Management) Reporting and Analysis.
 Revenue and Revenue Yield Reconciliation.
Accustomed with CMS Call Letter Changes from 2010 onwards to understand the impact of layout
changes in monthly and daily files and how the record type changes can happen for Record Type ‘A’ and
record Type ‘B’ and the impact on RAPS Submission Process and the MMR Restatement one including
logic change based on Adjustment Reason Code (ARC) etc.
Built the system to generated reports as an input to SAS Modules to support Medicare Risk Adjustment
Activities and to provide functionality to join data extracted from vendor with internal data sources e.g.
EDW
Lead developer in the ICD-10 redemption project to develop the ability within the MARS System to
receive, store, process, transit and report ICD-10 codes.
Extensively worked on building the Cohort Module to provide up-to date Cohort Data which encompasses
different sets of Aetna-defined criteria in which member data can be grouped and reported on.
Lead Developer in Application Code Migration from v7.5 to v8.5 and in converting build-op written
in C++ into DataStage and Parallel job.
Offshore developer in implementing Type- 2-Dimensional modelling for HICN Change process within the
application.
Offshore developer in setting up the application to interact with a front-end workbench application for
the business to set-up/modify data in the dimensional tables and to maintain an audit of input data.
Responsibilities:
 Worked closely with large project team consisting Business Analysts, Data Architects, data
modelers, ETL developers, WEBI developers and Mainframe Developers and implemented
successful projects.
 Defined best strategy for ETL architecture and worked with ETL architect to design optimum and
efficient data extraction, load processes.
 Performed analytical business requirement analysis for strategic and tactical decision to support
applications for enterprise business intelligence.
 Active involvement in developing and maintaining Parallel, Server and Sequencer jobs including
generic job concepts through RCP Techniques and multi-instance sequencer concepts.
 Worked heavily on performance tuning activities using advanced concepts of DataStage
Functionalities.
 Worked as Offshore Developer lead from 2010 to 2015, April.
 Currently playing the role of Application SME / Technology Lead
EDW Claim System Adhoc Reporting
Responsibilities:
 Onsite Developer in preparing adhoc DB2 queries to extract claim related information based
on the business requirements by joining tables across Claims, Members and Providers related
tables.

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 Limited exposure to the SAS environment for the generation of aggregated as well as formatted
reports
 Analysis of claim related tables to gather PHI information.
Enterprise Integrator Engine (EIE)
Responsibilities:
 Involve in requirement analysis, design, coding, testing and production implementation with the
DataStage project being created from scratch.
 Onsite Co-ordination activities like attending Sprint Planning and Stand-up calls
 Worked on .xsd preparation for xml file generation in IBM DataStage v11.3 environment
Amex – Offshore Developer Jan 2013 – Apr 2013
Senior System Engineer
Developer in a migration and re-engineering project from existing DB2 system to Netezza system. The
project involves movement of 17TB of data and more than 1000 DataStage jobs and wrappers.
Responsibilities:
 Redesigning of existing job and performance tuning using advanced concepts of NZ connector
stages.
 Prepared automated scripts to trigger jobs in sequence.
Infosys Limited Jan 2010 – Till date
Technology Analyst
 Member of Infosys Thought Leadership Program, BBSR
 Worked on POC – Data Virtualization, Data Federation, In-Memory Database and Graph
Database
 Prepared IBM Data Stage Code Review Tool against extensively used Datastage stages
 Worked on Contract Preparation for Data Science Domain, Aetna
 Conducted Interviews on Infosys IBM Data Stage Recruitment
 Datastage COE Member – Set-up Datastage v8.5 Server within Infosys domain
TECHNICAL KNOWLEDGE:
Technology ETL
Software: Data stage, UNIX, Ipswitch File Trasfer
Tools ETL Data stage
Software Version Control
Tools VSS, Clear Case
Database
Handled DB2, Oracle, SQL Server, Netezza
Tools Used DB2 Studio, RapidSQL

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REWARDS & RECOGNITIONS
 Infosys Technology DomainConsulting Champion – 2014
 MVP Award Winner – Infosys Limited - 2013
 Infosys SI, INSTA AWARD Winner – 2012
 Infosys SI, INSTA AWARD Winner – 2011
 Always graded on the top ranking in the Infosys CRR rating system.
STRENGTHS AND HIGHLIGHTS
* Extensive Business domain knowledge
* Systems Analysis & Design
* Impact Analysis
* Issue Tracking & Resolution
* Steep learning Curve.
* Self-starter and an effective team player.
* Excellent communication
* Problem solving capabilities
* Quality conscious and proactive in nature.
* Committed to excellence and innovation.
* Presentation and Inter-personal Skills
* Leadership and Ownership Attitude.
CERTIFICATIONS
 IBM Infosphere Information Server v8.5
 IBM Infosphere Information Server v8.0
 IBM DB2 10.1
 IBM Cognos 10 BI Authors
 Successfully completed Campus-Connect Program conducted by Infosys Limited at JIS College of
Engineering, Kalyani.