Alagar Pitchai
+1-302-***-****/ *******@*****.***
pROFESSIONAL SUMMARY
. 10+ YEARS IT EXPERIENCE
7+ years Data Warehousing (DW) Consultant experience
7+ years experience as Specialist/Developer in Informatica power
center (PC), Business Objects, Oracle and SQL Server
3+ year experience in Data Modeling/Data Analyst/DW Architect
Domain Experiences: Finance, Power & Energy, Automobile and
Pharmaceutical.
. Good Exposure in all phases of data warehousing life cycle including
planning, analysis, design, development, implementation and
maintenance of DW and data marts.
. Hands on experience in design and development of Logical, Conceptual
and Physical Data Models using Erwin and MS Visio.
. In my data warehousing career have played various roles from Developer
to Architect and have got extensive experience in ETL Informatica PC
7.x/8.6.1 & BusinessObjects 5i/6.x.
. Extensively used IDQ to manage data quality projects & plans in wide
range of scenarios.
. Hands on experience in handling/processing large volume of data in
business critical environments.
. Extensive database experience using Oracle 10g/9i/8i, UDB DB2, MS
Access, SQL, PL/SQL, SQL*Plus, SQL*Loader and TOAD.
. Good in Data Analysis, Data Profiling, Data Management,
Troubleshooting, Reverse Engineering and Performance tuning in various
level of ETL Process and BI Reports
. Experience in programming language Java, JSP, HTML, VB Script in the
entire Software Development Life Cycle (SDLC).
. Having good experience in Large volume of data, Complex business logic
and Aggressive deadline environments.
. Have good experience in offshore/onsite model.
. Proactive and self starter with the great ability of leadership.
skillset SUMMARY
DATA WAREHOUSING TOOLS INFORMATICA PC-7.X/8.6.1, BUSINESS OBJECTS 5I/6.5.1
Modeling Tools ERwin and MS Visio
DBMS DB2-UDB, Sybase, Oracle, SQL Server2005 & MS-Access
Programming Languages Java, JSP, HTML, VB Script, Excel Macro and PL/SQL
Project Management Tools Microsoft Project Plan
Operating Systems Windows, UNIX/LINUX
PROFESSIONAL EXPERIENCE
BOEHRINGER-INGELHEIM PHARMACEUTICALS INC., DANBURY, CT NOV'2009 - TILL
DATE
Role: ETL Architect/ Data Modeler
Project Name: Prescription Medicines Foundation Project
Description:
The Integrated Data Foundation project (IDF or Foundation) is an initiative
of Prescription Medicines to develop the basic components of a Prescription
Medicines Data Warehouse, integrating key information and making this
information accessible from a common location to support future reporting
and extraction processes.
Responsibilities:
. Reviewed and analyzed the BRD to derive the functional requirements
document and assisted in the preparation of System Requirement
Specifications and ETL Design Document.
. Involved in creating Preliminary Specifications document, Bus Matrix
and Issue document based on the BRD
. Worked with requirements analysts to determine business information
requirements, create logical data designs and collaborate with design
groups for final design and implementation.
. Involved in preparing Logical and Physical (STAR) data model by
following Ralph Kimball Paradigm.
. Involved in Source Data Analysis, ETL Process flow and the schema
objects with necessary Indexes, Partitions.
. Held Business Decomposition meetings to flesh out questions, issues,
and requirements.
. Performed gap analysis between existing systems and go-forward
requirements identifying areas for consolidation of business
processes.
. Maintained requirements traceability matrices for audit purposes.
. Developed Use Cases to demonstrate Business and Technical teams with
different scenarios and obtained consensus in the solution.
. Performed User Acceptance Testing for solutions.
. Created Test plans, performed unit testing for BPM process, reported
defects and status to the Management and Stakeholders.
. Involved in Analyzing the Risk and Benefits of each requirement and
change request and prioritize them accordingly.
. Optimized/Tuned the existing Informatica mapping in various level (
Source Qualifier, Transformations and Target) by avoiding bottleneck
to get better performance without disturbing the existing system
functionalities.
. Involved in MDM - Master Data Management project to integrate the
Confirmed dimension which is being used by multiple application.
. Involved in Change Management and Damage Control process.
Environment: Windows NT/2000/XP, SQL Server 2005, Oracle 9i/10g,
Informatica PC 7.x/8.6.1, IDE, IDQ, VBA Macros, XML, MS Project, Erwin 7.2,
Zai*Net, SQL/PLSQL
Exelon Inc., Kennett Square, PA Feb'2007 -
Oct'2009
Role: Sr.ETL Developer/ Data Modeler /DW Architect
Project Name: Trade, Forward Price, Journal Entry and DPS
Description:
Financial accounting and Operational accounting of Exelon were using the
Trade and DPS Data Marts in their Daily profit statement, Monthly/Quarterly
account close process. Risk Analytics team is using the Forward Price data
mart to forecast the commodity price across all market. JE data mart is
being used to book the journal and reconciling the invoices with actuals.
Responsibilities:
. Involved in identifying the Key Performance Indicators (KPIs),
Dimension information by analyzing the BRD and discussing with
Business users to build the dimensional model.
. Based on the BRD choose the application to be used for each interface
to meet the business need.
. Worked proactively and communicated the subsequent business
application/users in case of any delay/error based on the
criticality/availability of the system.
. Involved in preparing Logical and Physical data model, Source Data
Analysis, ETL Process flow and the schema objects with necessary
Indexes, Partitions.
. Defined the row level security strategies with enterprise standard to
adopt the SOX compliance and to keep the audit trail for every change.
. Involved in defining the dependency between the processes, and make
sure new additional processes are having necessary dependency and
mode.
. Worked with DW Project Manager, Business Analyst and other BI
developers to Design/Develop the ETL Strategies of the DW & Data
Marts.
. Extensively used IDE to profile and analyze the source data and
Prepared and executed quality plans for necessary dimensional
attributes using IDQ.
. Involved in publishing IDQ reports on Intranet and send them via email
to respective BA.
. Performed detailed data analysis and development of dimensional data
models and end-to-end design of processes to ETL into STAR dimension
data models.
. Performed Audit Tracking, Data Cleansing and DQ check in both Source
and DW side.
. Helping/Guiding team members in schema objects creation and data
migrating between environments.
. Drafted Test Plans, Back out plans and Contingency measures during the
Production Patches/Fixes for the existing applications.
. Working as Database expert to come up with ad-hoc queries for user
requirements and Performance tuning in SQL queries by inducing BULK
COLLECT, necessary Index/Partition.
. Effectively used various operational components in IDQ to standardize
and enhance the dimensional attributes.
. Involved in creating various complex reports slice & dice, Pivot,
Drill reports for complex business rules.
. Design and Developed Universe to meet the business rules and created
necessary business rule related filters to give better performance.
Environment: Windows NT/2000/XP, SQL Server 2005, Oracle 9i/10g, LIMA,
Informatica PC 7.1.4/8.6.1, IDE, IDQ, VBA Macros, XML, MS Project, Business
Objects XI (Web Intelligence, Designer, Desktop Intelligence), ERwin,
Zai*Net, SQL/PLSQL & Java
Johnson Diversey, Racine, WI Aug'2006 - Feb'2007
Role: Technical Lead
Project Name: DSIS (Distributed Sales Information System) Mart and Finance
(AR/AR/GL) Mart
Description:
The objective of the DSIS data mart is to provide high level sales
information across all regions daily. DSIS mart is used to generate the PDS
reports to Sr. level Business manager to track SIP on a daily basis to help
them to make business decision. Finance Data mart is being effectively used
by Finance team for month end financial close and regular day to day
reconciliation process.
Responsibilities:
. As Onsite Technical Lead Interacted with Business Users and Business
Analysts to understand and document the requirements and translate the
requirements to technical specifications for Universes in
BusinessObjects and ETL Mappings in Informatica.
. Developed Business Information Model and identified the key
transactions for each of the Source Systems.
. Involved in JAD sessions with SMEs and business users to analyze and
gather the high level requirements.
. Worked with Business to understand the requirements, active
participation in data model discussions, Developed Informatica
mappings using standards, Naming Conventions to load data into fact
and dimension tables.
. Managing/Coordinating the Enhancement releases from requirement
gathering, Design, Development, System testing, QA and Production
deployment between teams.
. As a Technical lead, involved Snowflake Data Modeling both LDM, PDM
Preparation
. Responsible for creating the repository and setting up the universe,
document, security domain and various universe connections for
different environment like Dev, QA, UAT and Production.
. Involved in performance tuning in various level of ETL mappings.
Environment: Windows NT/2000, SQL Server 2000, Business Objects 5i/6.x, Web
Intelligence 2.7, Enterprise Edition (Reporter, Designer, Supervisor,
Broadcast Agent, BCA Publisher, Auditor), Application Foundation 6.5.1,
Performance Manager, Dashboard Manager, Informatica PC 7.1.1, VBA Macros,
MS Project, Stored Procedures, Sagent, Data Mirror and ERwin
AoA and VWoA, Rochester Hills, MI Jan'2006 - Jun'2006
Role: Sr.DW Consultant
Project Name: TREAD (Transportation Recall Enhancement, Accountability and
Documentation)
Description:
The objective of this TREAD Data mart is to provide the information about a
vehicle to government. This module has several subject areas like, Consumer
Complaints, TACS, FRED, Production Counts and Warranty Claims. Warranty
claim mart is built from data sheets which are all sourced from various
field officers and provide the high level warranty claim detail from the
integrated DW.
Responsibilities:
. Create session tasks for each mappings and workflows to run the
sessions using Informatica Workflow Manager. Monitor scheduled and
running workflows using Workflow Monitor.
. Performed simple and complex transformations (Aggregator, Expression,
Lookup, Joiner, Sequence Generator, Sorter, Stored Procedure, Update
Strategy, etc.,) as part of Mapping between source and target.
. As Informatica Administrator, Involved in Install and configure/
Upgrade and Configure Informatica client tools (Repository Manager,
Designer, Workflow Manager, Workflow Monitor), Repository server,
Informatica server, create repository, register Informatica server
with the repository on windows and Unix platforms.
. Meta data/Repository Management for Informatica.
. Provided technical assistance by responding to inquiries regarding
errors, problems, or questions with programs/interfaces
. Developed UNIX Shell scripts for scheduling the jobs
. Created PL/SQL to implement complex business logic for better
performance
. Involved in Universe Creation, resolving the loop, creating the
necessary dimension objects, measure objects
. Extensively used Calculations, Variables, Breaks, @AggregateAwareness,Query prompt, Rank, Sorting, Drill down, Slice and Dice, Alerts for
creating Sales and Profit reports.
Environment: Windows 2000/XP, Oracle 9i, SQL plus, BusinessObjects 6.5.1,
TOAD, PL/SQL, SQL*Loader, VBA Macros, MS Visio, XML, Informatica PC 7.1, HP-
UNIX.
Citigroup, Singapore Sep'2004 - Oct'2005
Role: DW Consultant
Project Name: APAC Retail Banking SOP/SIP, Customer Portfolio Tracker
Description:
The objective of the SOP/SIP portal is to track and improve the performance
of the relationship managers. This enabled the users to perform analytics,
based on various Investments. Also various reports enabled Portfolio
Manager to track Rebalance Analyze Net Sales Quitter/Redeemer/Sleeper
Information based on the balances of the various customer holdings with the
bank.
Responsibilities:
. According to the business logic created various transformations like
Source Qualifier, Lookup, Stored Procedure, Sequence Generator,
Router, Filter, Aggregator, Joiner, Expression, Union, Update
Strategy And Sorter
. Involved in fixing invalid mappings, testing of Stored Procedures and
Functions, Unit and Integrating testing of Informatica Sessions,
Batches and the Target Data.
. Analyzed Session Log files in case the session failed to resolve
errors in mapping or session configurations
. Creation of Sessions and executing them to load the data from the
source system using Informatica Server Manager.
. Performance tuning of sources, targets, mappings and SQL queries in
the transformations
. Performed Incremental loading by means of loading recently
modified/added record into DW
. Developing Auto prompts to give end users a choice of different
filtering criteria each time they run the report.
Environment: Sun Solaris, Oracle Server 8.1.6/8.1.7, SQL* Loader, Shell
Scripting, Informatica PC 6.x, SQL, PL/SQL, Export/Import, Business Objects
5.x/6.x, Application Foundation 6.1a (Performance Manager, Dashboard
Manager)
AmerisourceBergen Drugs Corporation, CA Jun'2003 -
Aug'2004
Role: DW Consultant
Project Name: AmerisourceBergen Data Consolidation-Interlinx
Description:
Involved in designing, transformation and testing process. The Objective of
this project is creating Text files with certain format and feed it into
MSI program which is running in the Mainframe System and getting Customer
and Contract related reports from the WEB. The Interlinx ETL load processes
like daily, History, system assurance, reconciliation and sync are involved
in this project.
Responsibilities:
. Worked on Informatica PC 5.1 tools - Source Analyzer, Warehouse
Designer, Mapping Designer, Workflow Manager, Mapplets, and Reusable
Transformations.
. Developed materialized view and summary tables necessary for
structured and ad-hoc reporting.
. Conducted performance tuning on Targets, Sources, Mappings & Sessions
to identify bottlenecks.
. Associated in the process of designing LDM, PDM and DFD
. Created server sessions for the transformations and mappings.
Scheduled server sessions for the mappings at predetermined time
intervals.
. Used Workflow Manager for Creating, Validating, Testing and running
the sequential and concurrent Sessions and scheduling them to run at
specified time.
. Designed and Created Universe, Classes and Objects. Applied typical
conditions to different classes and objects like count, sum, max, and
min in Business Objects.
. Created Aliases and Contexts for resolving Loops and developed
Hierarchies to support drill down reports in Business Objects.
Environment: Informatica 5.1, Oracle 9i, Sybase, SQL, PL/SQL, ERwin 4.0,
TOAD, SQL Server 2000, Business Objects 5.1(Designer, Reporter)
Ashok Leyland, Chennai, India Jul'2002 -
Jun'2003
Role: BI Developer
Project Name: Production Data Mart
Description:
Production data mart helps the management in effective production planning
and scheduling, efficient utilization of man, machine and materials, and
overall control of production process Stores Performance in terms of
supplying the required materials to Line and Shop as per the requirements,
ABC, VED Analysis. Production Performance in terms of Planned Vs Production
Responsibilities:
. Responsible for development of ETL processes to load data from
different sources into the target warehouse by applying applicable
business logic on Transformation mappings.
. Involved in collecting and reporting ETL process statistics and design
and implementation of ETL alerts severity and the groups responsible
for handling the errors.
. Created Oracle PL/SQL Stored Procedure to implement complex business
logic for good performance
. Created Stored Procedures and used them in the mappings as connected
and unconnected Stored Procedure Transformations.
. Used Type 2 SCD Mapping to insert new Dimensions and update Dimensions
in the Target and maintain the history.
. Presented the features of BusinessObjects to the end-users to enable
them to develop queries and reports easily.
. Involved in Report formatting, Slice & dice, Master Sectioning,
Drilling with respect to hierarchy
Environment: Sun Solaris 7.0, Windows NT, Informatica 5, SQL Server, Oracle
7.x, SQL, PL/SQL, SQL*Plus, Sybase, Business Objects 5.0.
Sree Ayyanar Mills, Virudhunagar, India May'2000 -
July'2002
I worked for Sree Ayyanar Mills(P) Ltd., Virudhunagar, India from May 2000
to July 2002. I started my carrier as Programmer-Trainee then got promoted
as a Programmer/EDP-In-Charge. Also In-charge for Management Information
System (MIS). During this time I was involved in development of different
kinds of projects like Integrated Information System, Inventory Management
System, Sales and Procurement Management System. During this time I worked
on Java, Javascript, JBuilder 5.0, JavaBeans, JMS, JSP, Servlet, NetBean,
Windows, HTML, XML, XSLT, Oracle, SQL Server 2000, FoxPro 2.6 and Novell
NetWare
EDUCATION
B.E (COMPUTER SCIENCE AND ENGINEERING), KAMARAJ UNIVERSITY, MADURAI, INDIA.