SUMMARY:

• Over 9 years of IT experience in the Analysis, Design, Development, Testing and Implementation of business application systems for Health care, Pharmaceutical, Financial, Telecom and Manufacturing Sectors.
• Strong experience in the Analysis, design, development, testing and Implementation of Business Intelligence solutions using Data Warehouse/Data Mart Design, ETL, OLAP, BI, Client/Server applications.
• Strong Data Warehousing ETL experience of using Informatica 9.1/8.6.1/8.5/8.1/7.1 PowerCenter Client tools - Mapping Designer, Repository manager, Workflow Manager/Monitor and Server tools Informatica Server, Repository Server manager.
• Expertise in Data Warehouse/Data mart, ODS, OLTP and OLAP implementations teamed with project scope, Analysis, requirements gathering, data modeling, Effort Estimation, ETL Design, development, System testing, Implementation and production support.
• Extensive testing ETL experience using Informatica 9.1/8.6.1/8.58.1/7.1 (Power Center/ Power Mart) (Designer, Workflow Manager, Workflow Monitor and Server Manager) Teradata and Business Objects.
• Strong experience in Dimensional Modeling using Star and Snow Flake Schema, Identifying Facts and Dimensions, Physical and logical data modeling using ERwin and ER-Studio.
• Expertise in working with relational databases such as Oracle 11g/10g/9i/8x, SQL Server 2008/2005, DB2 8.0/7.0, UDB, MS Access and Teradata.
• Strong experience in Extraction, Transformation and Loading (ETL) data from various sources into Data Warehouses and Data Marts using Informatica Power Center (Repository Manager, Designer, Workflow Manager, Workflow Monitor, Metadata Manger), Power Exchange, Power Connect as ETL tool on Oracle, DB2 and SQL Server Databases.
• Experience using SAS ETL tool and SAS Enterprise Data Integration Server highly preferred.
• Extensive experience in developing Stored Procedures, Functions, Views and Triggers, Complex SQL queries using SQL Server, TSQL and Oracle PL/SQL.
• Experience in resolving on-going maintenance issues and bug fixes; monitoring Informatica sessions as well as performance tuning of mappings and sessions.
• Experience in all phases of Data warehouse development from requirements gathering for the data warehouse to develop the code, Unit Testing and Documenting.
• Extensive experience in writing UNIX shell scripts and automation of the ETL processes using UNIX shell scripting.
• Proficient in the Integration of various data sources with multiple relational databases like Oracle11g /Oracle10g/9i, MS SQL Server, DB2, Teradata, VSAM files and Flat Files into the staging area, ODS, Data Warehouse and Data Mart.
• Experience in using Automation Scheduling tools like Autosys and Control-M.
• Worked extensively with slowly changing dimensions.
• Hands-on experience across all stages of Software Development Life Cycle (SDLC) including business requirement analysis, data mapping, build, unit testing, systems integration and user acceptance testing.
• Excellent interpersonal and communication skills, and is experienced in working with senior level managers, business people and developers across multiple disciplines

TECHNICAL SKILLS:

BI Tools: SSRS, SSIS, SSAS, Query Analyzer, SQL Server Management Studio, DTS, SSIS, SSRS, SSAS, SharePoint. SAP Business Objects BI platform 4.1 /4.2 ( IDT, BI Launch pad,)

ETL: Informatica Power Center 9.1/8.6/8.5/8.1/7.1 (Designer, Workflow Manager, Workflow Monitor, Repository manager and Informatica Server)

Database: Oracle 11g/10g/9i/8i, MS SQL Server 2008/2005, DB2 v8.1, Teradata

Programming Languages: SQL, T - SQL, PL-SQL

Operating Systems: Windows (All Versions)

Implementation Methodologies: Agile Scrum

Domain Knowledge: Banking Investment Banking, Reconciliation

Telecom: Post Paid,Pre paid, Billing cycle

PROFESSIONAL EXPERIENCE:

Confidential - New York City, NY

Informatica Developer

Responsibilities:

• Responsible for Business Analysis and Requirements Collection.
• Worked on Informatica Power Center tools- Designer, Repository Manager, Workflow Manager, and Workflow Monitor.
• Parsed high-level design specification to simple ETL coding and mapping standards.
• Designed and customized data models for Data warehouse supporting data from multiple sources on real time
• Involved in building the ETL architecture and Source to Target mapping to load data into Data warehouse.
• Created mapping documents to outline data flow from sources to targets.
• Involved in Dimensional modeling (Star Schema) of the Data warehouse and used Erwin to design the business process, dimensions and measured facts.
• Extracted the data from the flat files and other RDBMS databases into staging area and populated onto Data warehouse.
• Maintained stored definitions, transformation rules and targets definitions using Informatica repository Manager.
• Used various transformations like Filter, Expression, Sequence Generator, Update Strategy, Joiner, Stored Procedure, and Union to develop robust mappings in the Informatica Designer.
• Developed mapping parameters and variables to support SQL override.
• Created mapplets to use them in different mappings.
• Developed mappings to load into staging tables and then to Dimensions and Facts.
• Used existing ETL standards to develop these mappings.
• Worked on different tasks in Workflows like sessions, events raise, event wait, decision, e-mail, command, worklets, Assignment, Timer and scheduling of the workflow.
• Created sessions, configured workflows to extract data from various sources, transformed data, and loading into data warehouse.
• Used Type 1 SCD and Type 2 SCD mappings to update slowly Changing Dimension Tables.
• Extensively used SQL* loader to load data from flat files to the database tables in Oracle.
• Modified existing mappings for enhancements of new business requirements.
• Used Debugger to test the mappings and fixed the bugs.
• Wrote UNIX shell Scripts & PMCMD commands for FTP of files from remote server and backup of repository and folder.
• Involved in Performance tuning at source, target, mappings, sessions, and system levels.
• Prepared migration document to move the mappings from development to testing and then to production repositories.

Environment: Informatica Power Center 8.6/8.1, SQL*Loader, IDOC, RFC, HP Quality Center, Oracle9i/10g, AUTOSYS, Rational Clear case, Rational Clear Quest, Windows XP, TOAD, UNIX..

Confidential

Informatica Developer

Responsibilities:

• Logical and Physical data modeling was done using Erwin for data warehouse database in STAR SCHEMA
• Using Informatica PowerCenter Designer analyzed the source data to Extract & Transform from various source systems (oracle 10g, DB2, SQL server and flat files) by incorporating business rules using different objects and functions that the tool supports.
• Using Informatica PowerCenter created mappings and mapplets to transform the data according to the business rules.
• Used various transformations like Source Qualifier, Joiner, Lookup, sql, and router, Filter, Expression and Update Strategy.
• Implemented slowly changing dimensions (SCD) for some of the Tables as per user requirement.
• Developed Stored Procedures and used them in Stored Procedure transformation for data processing and have used data migration tools
• Documented Informatica mappings in Excel spread sheet.
• Tuned the Informatica mappings for optimal load performance.
• Have used BTEQ, FEXP, FLOAD, MLOAD Teradata utilities to export and load data to/from Flat files.
• Created and Configured Workflows and Sessions to transport the data to target warehouse Oracle tables using Informatica Workflow Manager.
• Have generated reports using OBIEE 10.1.3 for the future business utilities.
• This role carries primary responsibility for problem determination and resolution for each SAP application system database server and application server.
• Worked along with UNIX team for writing UNIX shell scripts to customize the server scheduling jobs.
• Constantly interacted with business users to discuss requirements

Environment: Informatica Power Center 9.1 .

Confidential

Associate Consultant

Responsibilities:

• Involved in the analysis of the user requirements and identifying the sources.
• Created technical specification documents based on the requirements by using S2T Documents.
• Involved in the preparation of High level design documents and Low level design documents.
• Involved in Design, analysis, Implementation, Testing and support of ETL processes for Stage, ODS and Mart.
• Prepared ETL standards, Naming conventions and wrote ETL flow documentation for Stage, ODS and Mart.
• Followed Ralph Kimball approach (Bottom up Data warehouse Methodology in which individual data marts like Shipment Data Mart, Job order Cost Mart, Net Contribution Mart, Detention & Demurrage Mart are provides the views into organizational data and later combined into Management Information System (MIS)).
• Prepared Level 2 Update plan to assign work to team members. This plan is very helpful to know the status of each task.
• Administered the repository by creating folders and logins for the group members and assigning necessary privileges.
• Designed and developed Informatica Mappings and Sessions based on business user requirements and business rules to load data from source flat files and oracle tables to target tables.
• Worked on various kinds of transformations like Expression, Aggregator, Stored Procedure, Lookup, Filter, Joiner, Rank, Router and Update Strategy.
• Developed reusable Mapplets and Transformations.
• Used debugger to debug mappings to gain troubleshooting information about data and error conditions.
• Involved in monitoring the workflows and in optimizing the load times.
• Used Change Data Capture (CDC) to simplify ETL in data warehouse applications.
• Involved in writing procedures, functions in PL/SQL.
• Developed mappings in Informatica using BAPI and ABAP function calls in SAP.

Environment: Informatica Power Center 8.6/8.1, SQL*Loader, IDOC, RFC, HP Quality Center, Oracle9i/10g, AUTOSYS, Rational Clear case, Rational Clear Quest, Windows XP, TOAD, UNIX.

Confidential

Software Developer

Responsibilities:

• Interacted with Data Modelers and Business Analysts to understand the requirements and the impact of the ETL on the business.
• Designed ETL specification documents for all the projects.
• Created Tables, Keys (Unique and Primary) and Indexes in the SQL server.
• Extracted data from Flat files, DB2, SQL and Oracle to build an Operation Data Source. Applied business logic to load the data into Global Data Warehouse.
• Extensively worked on Facts and Slowly Changing Dimension (SCD) tables.
• Maintained source and target mappings, transformation logic and processes to reflect the changing business environment over time.
• Used various transformations like Filter, Router, Expression, Lookup (connected and unconnected), Aggregator, Sequence Generator, Update Strategy, Joiner, Normalizer, Sorter and Union to develop robust mappings in the Informatica Designer.
• Extensively used the Add Currently Processed Flat File Name port to load the flat file name and to load contract number coming from flat file name into Target.
• Worked on complex Source Qualifier queries, Pre and Post SQL queries in the Target.
• Worked on different tasks in Workflow Manager like Sessions, Events raise, Event wait, Decision, E-mail, Command, Worklets, Assignment, Timer and Scheduling of the workflow.
• Extensively used workflow variables, mapping parameters and mapping variables.
• Created sessions, batches for incremental load into staging tables and scheduled them to run daily.
• Used shortcuts to reuse objects without creating multiple objects in the repository and inherit changes made to the source automatically.
• Implemented Informatica recommendations, methodologies and best practices.
• Implemented performance tuning logic on Targets, Sources, Mappings and Sessions to provide maximum efficiency and performance.
• Involved in Unit, Integration, System, and Performance testing levels.

Environment: Informatica Power Center 8.6/8.1, SQL*Loader, IDOC, RFC, HP Quality Center, Oracle9i/10g, AUTOSYS, Rational Clear case, Rational Clear Quest, Windows XP, TOAD, UNIX..

Confidential

Software Developer

Responsibilities:

• Gathered requirements to identify and create database objects such as tables, views, triggers and indexes.
• Involved in Normalization of the database and bringing it to 3NF.
• Involved in creating the constraints, rules, defaults and triggers to maintain the data and referential integrity.
• Created ER diagrams using Visio.
• Created Views to enforce security and data customization.

Environment: Informatica Power Center 8.6/8.1, SQL, SAP BO 3.2, WebI