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A Kiran
[email protected]
Cell: +91-8105056816.
Porfessional Summary:
A competent professional with 3.5 years experience as Developer
using Informatica. Knowledge on Data Warehousing Concepts, Business
Intelligence, UNIX, SQL and Data
modeling.
Effective communicator with excellent relationship building
& interpersonal skills. Solid data ware housing experience
using Informatica Power Center (Source Analyzer,
Data Warehousing Designer, Mapping Designer, Mapplet,
Transformations, Workflow
manager).
Extensive experience with Data extraction, Transformation, and
loading (ETL) fromdisparate data sources like oracle and Flat
files. Good grounding on the OLAP tools likeCOGNOS, Business
Objects.
Strong experience with SQL statements. Solid in Data Warehousing
concepts, dimensionalstar schema and snowflake schema
methodologies.
Good at working with On-shore teams for on-time delivery of
solutions. Good inCoordination and Communication between On-shore
and Offshore Teams.
Ready to take up new challenges and easily adaptable. Ability to
take on multiple assignments. Has very good problems solving
skills.
Porfessional Experience:
Working with Emsys Software Technologies ,Bangalore from Nov
2009 to till date.Education:
B.Tech in Information Technology from JNTU.Technical Skills:
Operating System : Windows XP/7, Windows 2000, Windows 2003,
UNIX
ETL Tools : Informatica Power Center 8.6
RDBMS : SQL Server 2005, Oracle 8i/9i/10g.
Languages : C/C++, SQL and PL/SQL
Reporting tools : Cognos 8.4
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EXPERIENCE SUMMARY:
#project 1:
Project Name : Data marts for Merrill Lynch & co., IncClient
: Merrill Lynch & co., Inc, U.S.A
Duration : APR-12 to till date
Designation : Software Engineer
Role : ETL Developer
Technology : Informatica 8.6.0, Oracle 10g, Windows, UNIX
Description:
This project is involved in the development of data warehouse
for Merrill Lynch,
Based on four kinds of data marts Accounts, Loans, Credit Cards
and Insurance. Each data
mart represents a collection of data related to a single
business process. In loan data mart
Merrill Lynch is involved in spending loan amounts for various
purposes like: Personal Loan,
Educational Loan, Vehicle Loan, Housing loan, Consumer Durable
loan etc.
The company requires different levels of analysis regarding loan
amount, type of loans, type of
customers, type of payment schedules, interest rates (variable
or fixed), defaulters list and the
penal interest calculations etc.
The purpose of the Data Warehouse is to maintain historical data
and central location for
integration of different source data; analyzing business in
different locations according to
profit areas, which served purpose of a DSS for decision
makers.
Roles & Responsibilities:
Good understanding of Technical Design Document. Worked on
Informatica Power Center tools like Source Analyzer, Warehouse
Designer
to import the source and target database schemas. Mapping
Designer, Workflow
Manger and Workflow Monitor.
Used transformations like Aggregators, Sorter, lookups, Filters,
Expression, Router,Joiner, Source Qualifier, Update Strategy,
Sequence Generator
Used mapping parameters and variables. Exclusively worked on
slowly changing dimensions. Identified Bottlenecks in the mapping,
and Involved in Performance tuning. Created sessions &
workflows to ensure the data to be loaded into the specific tables
of
DWH.
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Configured various tasks in the workflows for the dependency by
using Command,Event wait, timer and Email task.
Involved in unit testing. Optimizing the mappings by changing
the logic to reduce run time
#project 2:
Project Name : RBI Production Support and enhancement
Client : Retail Business Intelligence, Mexico
Duration : FEB-11 to MAR-12
Role : ETL Developer
Environment : Power Center 8.6.0, Oracle 10g, Windows XP,
UNIX
Description:
The aim of the project was to support the BI applications of the
client. The BI applications there
in, rely on Informatica Power center for Data integration.
Oracle 9i serves as the OLTP whereas
Teradata V2R6 serves as the EDW. Some reporting applications
were also based on SQL
Server 2005.The reporting tool used was Micro strategy and few
other in house tools.
Responsibilities:
Monitoring and fixing workflow failures. Automation of regular
tasks using Informatica / Unix Shell Scripts Solving data issues in
reports. Coordinating Planned / Unplanned System Shutdowns. Used
most of the transformations such as the Source Qualifier,
Expression,
Aggregator, Connected & unconnected lookups, Filter, Router,
Sequence
Generator, Sorter, Joiner, and Update Strategy.
Performance Tuning ofInformatica jobs, stored procedures already
in production. Involved in Enhancements of the mappings according
to the design documents. Imported data from various Sources
transformed and loaded into Data Warehouse
Targets using Informatica.
Used shortcuts to reuse objects without creating multiple
objects in the repositoryand inherit changes made to the source
automatically.
Developing Informaticamappings & tuning them when necessary.
Optimizing Query Performance, Session Performance.
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Unit and System Testing of developed mapping. Documentation to
describe program development, logic, coding, testing,
changes and corrections.
#project 3:
Project Name : POS Rewrite for retail sales system
Client : Retail Business Intelligence (RBI), Mexico and
Texas.
Duration : NOV-09 to JAN-11
Role : Team member
Environment : Informatica 8.6.0, Oracle 10g, Windows XP,
UNIX
Description:
POS Data flow viz., reduplication, collection and publication is
the backbone of enterprise
data warehouse integration in retail domain. The data from here
gets integrated into the
enterprise data warehouse through a staging area. The aim of the
project was migration of the
POS flow from Oracle 10g to Teradata V2R6. Subsequently, all the
dependent integrations
were also modified for their dependency on Teradata rather than
Oracle.
Responsibilities:
Imported data from various sources transformed and loaded into
Data Warehouse
Targets using Informatica.
Analyzed the sources and targets, re-imported them to have the
dimensional model to
be in sync.
Creating stored procedures, triggers, editing mappings according
to the detailed design
document.
Identifying dependent jobs in the system.
Modified sessions and running sessions.
Performance tuning of Data mart, Data Validation.
There were two kinds of data loading processes (Daily and
Weekly) depending on the
frequency of source data.
Extensively used Transformations like Router, Aggregator, Source
Qualifier, Joiner,
Expression, Aggregator and Sequence generator.
Knowledge of slowly changing dimension tables and fact
tables.
Worked with different sources such as Oracle, MS SQL Server and
flat files.
