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Manager Data

Location:
Pune, Maharashtra, India
Posted:
October 13, 2016

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Jagan Nagireddi

acw09t@r.postjobfree.com 678-***-****

Professional Summary:

8+ Years of IT Experience in Software Design, Development, Testing and Deployment using SDLC life cycle.

Having good exposure in designing and implementing the Data Warehouse applications, mainly Transformation processes using ETL tool Informatica Power Centre 9.5/9.1.0/8.6/8.1.1.

Have involved in end to end project activities i.e. from gathering Business needs, converting them into requirements, analysis, design activities, build to testing phases, reviews and in release management.

Extensively used Informatica for ETL purposes on various sources and targets like Flat files, Oracle 10g, SQL Server 2012, Sales force, Mainframe DB2 and Netezza.

Extensive hands-on expertise using Informatica Power Center with strong business understanding (domains) of Insurance, Banking and financial services.

Extensively worked with various components of the Informatica Power Center – Power Center Designer (Source Analyzer, Warehouse Designer, Mapping Designer, Mapplet Designer, Transformation developer), Repository Manager, Workflow Manager, and Workflow Monitor to create mappings, tasks and workflows for the extraction of data from various source systems to targets.

Experience in implementing complex business rules by creating re-usable transformations, and robust mappings/mapplets using different transformations like Unconnected and Connected lookups, Source Qualifier, Router, Filter, Expression, Aggregator, Joiner, Update Strategy, Stored Procedure, Normalizer etc.

Proficient in full life cycle development of Data Warehousing, ETL strategies, reporting and hands on experience in Performance Tuning of sources, targets, transformations, mappings and sessions using Database Tuning, Index Usage, Aggregate Tables, Load strategies, commit intervals and transformation tuning.

Extensive experience in integrating data from various Heterogeneous sources like Relational databases (Oracle, SQL Server), Flat Files (Fixed Width and Delimited) into Data Warehouse and Data Mart.

Experience in PL/SQL Programming (Stored procedures, Triggers, Functions and Packages) and UNIX shell scripting.

Good experience in documenting the ETL process flow for better maintenance and analyzing the process flow.

Sound knowledge in administration tasks including importing/exporting Informatica objects, versioning to maintain objects history.

Developed complex mappings and SCD type-I and Type-II mappings in Informatica to load the data from various sources using different transformations and created complex mapplets for reusable purposes.

Strong in Data warehousing concepts, dimensional Star Schema, Snowflakes Schema methodologies.

Technical Skills:

ETL Tools: Informatica Power Center 9.5/9.1/8.6/8.1 (Workflow manager,

Work Flow Monitor, Source Analyzer, Transformation developer, Mapplet Designer, Mapping Designer and Repository manager)

Data Modeling Tool: ERWIN 4.x and Concepts like Star Schema Modeling,

Snowflake Modeling, FACT and Dimensions Tables, Physical and

Logical Data Modeling.

Databases: Oracle 10g/9i, DB2 9.5, SQL Server 2012/2008, Netezza,

Languages: SQL, PL/SQL, UNIX Shell Script, C, C++.

Development Tools: SQL *Plus, TOAD, SQL Developer, Putty, HP Quality Center,

SQL Server management studio.

Scheduling Tools: Control M, Informatica Scheduler.

Operating Systems: Windows XP/NT/2008, UNIX

Professional Experience:

Verint Survey, CUNA Mutual Group, Madison WI July 2014 – Till Date

Role: Sr. Informatica Consultant

CUNA (Credit Union National Association) Mutual Group is a mutual insurance company that provides financial services to cooperatives, credit unions, their members, & other customers worldwide. The Madison, Wisconsin-based company also provides auto, home, life and loan protection products to credit union members through its TruStage brand.

The Verint Data Project will provide the Operations Department more flexibility in reporting on both Survey and QA metrics for the contact centers and management. Worked on various projects in Agile and Waterfall methodologies.

Responsibilities:

Extensively involved in all the phases of Project life cycle right from Requirements Gathering to Testing etc.

Coordinated with Client SMEs and offshore team to get the requirements and get the code delivered in timely manner and with high quality and performance.

Worked on coming up with templates for Source to Target Document, ETL Detail Design Document, Unit Test Plan, Code review checklist, Migration Check List and Production Handoff document.

Created mappings using the Transformations like Source qualifier, Aggregator, Expression, Lookup, Router, Filter, Rank, Sequence Generator, and Update Strategy for the data integration.

Involved in peer reviews of the code to ensure all the standards are implemented and tuned mappings in order to bring down the run time by using Informatica partitioning if needed.

Performed thorough Unit testing & Integration testing using sample data from PROD, once the code is reviewed and met the standards, promoted to higher environments.

Supported in UAT testing and fixed the defects and thoroughly tested them back and promoted to UAT for further testing.

Build the deployment plan for every release to consolidate all the objects and backfills to the upper environments and laid out the execution plan.

We constantly monitored the cycle run times and looked into the long running jobs and did performance tuning in order to meet the SLAs.

Scheduled and ran Extraction-Load process and monitored tasks/workflows using the Workflow Manager and Workflow Monitor.

Troubleshoot problems by checking sessions/error logs in the Workflow Monitor and also used debugger in Mapping Designer to debug complex mappings.

Used the client tools (Ivalidator, dbView and db compare) to validate the informatica objects and compare the source and target data.

Maintained all the standards and implemented the best practices in our development process.

Environment: Informatica Power Center 9.5, SQL Server 2012, SAP Business Objects 4.0, HP Quality Center, Control M

Triumph Automation, American Express Phoenix, AZ Jan 2013–June 2014

Role: Sr. Informatica Consultant

The scope of this project is to automate the process for reconcile the merchant accounts by introducing the informatica and eliminate the manual process. This will minimize the manual efforts, the man hours in processing the accounts & the scope of errors will also be reduced.

In manual process,

The GAR (Global account reconciliation) team business user receives flat files from AXIOM. These files are prepared by the merchants and contain data of the daily transactions. These files are manually downloaded. The bulk data in these files is un-bulked by business using filters and after further slicing and dicing of data the file is run by using Monarch. In this process the reconciliation is performed and the flat file is converted to excel format. These excel files are in a standard format which are then pushed to intellisuite.

Responsibilities:

Understand the Business Requirements in depth.

Analyze the requirements of the business users by using ETL Specifications.

Developed Entity Level, High level & Detail design documents based on requirement documents.

Worked with Source Analyzer, Warehouse Designer, Transformation designer, Mapping designer and Workflow Manager.

Developed Informatica Mappings and Sessions based on business user requirements and business rules to load data from source flat files & Sql server tables to flat files.

Did performance tuning at source, transformation, target, and workflow levels.

Parameterized the mappings and increased the re-usability.

Used the transformations such as the Source Qualifier, Aggregator, Expression, Update strategy, Lookup, Sequence Generator, Normalizer, Union and Filter.

Understand the existing vb scripts and do the required changes as per requirements.

Perform Unit testing to ensure that the code is working properly

Performance tuning of Sources, Targets, Mappings and Sessions by identifying bottlenecks and used Debugger to debug the complex mappings and fix them.

Involved in Integration testing of the module after integrating all the data marts

Perform Migration from one environment to another environment across the repositories.

Environment: Informatica Power Center 9.1, VBScript, MSSQL 2008, Cognos, HP Quality Center 10, AXIOM systems

Small business service, American Express Phoenix, AZ Feb 2012 – Dec 2012

Role: Sr. Informatica Consultant

The main objective of this project is to deliver a solution that closes a major gap in the Amex Small Business product portfolio that will drive revenue while delivering growth, improved client loyalty and acquisition rates for our Partner’s businesses.

This project will create a reporting solution for our GNS partners to be used by their commercial card clients. This will be an intuitive solution with a dashboard front end and role based access to dynamic reports.

Responsibilities:

Understanding the requirements and translating them into technical requirements.

Worked on Power Center Designed client tools like Source Analyzer, Warehouse Designer, Mapping Designer, Mapplet Designer and Transformation Developer.

Extracting, transforming and validating the data and loading the data into Database Netezza.

Extensively used transformations like Application source Qualifier, Unconnected Lookup, Aggregator, Filter, Router, Expression, Joiner, Sequence generator.

Developed standard mappings using various transformations like expression, aggregator, joiner, source qualifier, router, lookup, and filter.

Created many reusable tasks and used them in different Worklets and Workflows.

Involved in Preparation of Low level Design documents.

Responsible for Testing and validating the Informatica mapping against the pre-defined ETL design standards.

Prepared the UNIX shell scripts to perform the file level validations.

Created the Unit Test Plans and did Unit Testing in E1 environment.

Successfully moved the Mappings, Sessions and workflows from the Development environment to Production environment.

Monitoring execution of implemented job in production during the warranty period and fix the identified issues.

Provide knowledge transfer & process documents to Production Support for ongoing maintenance of the code.

Completed documentation in relation to detailed work-plans, mapping documents and high-level data models.

Environment: Informatica Power Center 9.1, DB2 9.5, UNIX Shell Scripting, Netezza, Quality Center 10

SFDC Commercial Integration, Moody’s Jan 2011 – Jan 2012

Role: Informatica Developer

Moody's Investors Service is a leading provider of credit ratings, research, and risk analysis. Moody's commitment & expertise contributes to transparent & integrated financial markets, protecting the integrity of credit. Credit ratings & research help investors analyze the credit risks associated with fixed-income securities.

The main objective of this project is to impending integration between core system and sfdc commercial instance. The integration will primarily source from core system, when the link is established between sfdc commercial instance and core system.

Responsibilities:

Proficient in understanding business processes/requirements and translating them into technical requirements

Worked on PowerCenter Designed client tools like Source Analyzer, Warehouse Designer, Mapping Designer, Mapplet Designer and Transformation Developer.

Designed, developed mappings, enabling the extract, transport and update the data Salesforce.

Extensively used transformations like Unconnected Lookup, Aggregator, Filter, Router, Expression, Joiner, Sequence generator and update strategy.

Responsible for Testing and validating the Informatica mapping against the pre-defined ETL design standards.

Perform Unit testing to ensure that the code is working properly

Performance tuning of Sources, Targets, Mappings and Sessions by identifying bottlenecks and used Debugger to debug the complex mappings and fix them.

Perform Integration testing of the module after integrating all the data marts

Perform Migration from one environment to another environment across the repositories.

Involved in production support activities.

Environment: Informatica Power Center 8.6.1, Sales force, BMC Remedy, Sql server 2008.

Encompass R&A, All State Dec 2008 – Dec 2010

Role: ETL Developer

Allstate sells Encompass Insurance branded property and casualty products exclusively through Independent Agents. In the current environment, the independent agent facing reports are obtained from a variety of source data stores. There are also significant, localized reports maintained at the business unit level. Thus exists a disparate reporting environment supported by a variety of underlying technologies, leading to multiple versions of truth.

The recently concluded analytics and reporting strategy and data design project at Encompass had laid out a roadmap to consolidate the reporting environment and provide access improvement.

The scope of this project will be to Build & Implement the Agency Data Mart.

The new system will be made available to approximately two hundred (200) Field Sales leaders and home office Users.

Responsibilities:

Understand the Business Requirements in depth.

Analyze the requirements of the business users by using ETL Specifications.

Developed Designs both at High Level and Low Level for the ETL solutions Proposed.

Developed the Mappings, sessions and workflows.

Imported required target tables into target designer.

Constructed ETL Logic for Staging Database using FULL LOADING.

Constructed ETL Logic for Dimension tables using SCD 1 and SCD 2 from DELTA LOADING.

Constructed ETL Logic for Fact tables using INCREMENTAL LOADING.

Perform Unit testing to ensure that the code is working properly

Performance tuning of Sources, Targets, Mappings and Sessions by identifying bottlenecks and used Debugger to debug the complex mappings and fix them.

Perform Integration testing of the module after integrating all the data marts

Perform Migration from one environment to another environment across the repositories.

Involved in production support activities.

Environment: Informatica 8.6.1, Oracle 10g,Contro M,TOAD, HP Quality Center, Cognos.

SJP MIS Reporting, St. James's Place, UK Oct 2007 - Nov 2008

Role: ETL Developer

Client data mart (CDM) helps produce a simple and effective multi-dimensional for Sjp's MI Division, which manages the corporate management information. Client data mart replaces their previous Excel-based, Ms-Access driven reporting. CDM extracts bulk of its client information from the Corporate Database (CDB) running in sqlserver. CDM uses Informatica for extraction and load into Staging tables & transformation into Dimension and Fact tables within the data mart. The fact tables contain’s the measures for the client like units and value of each plan and funds while the dimensions are Clients, Partners, geography, time etc. This will help SJP to create reports from the data mart easier than CDB or previous systems.

Responsibilities:

Understand the business requirements and translating them into technical requirements.

Extensively used Informatica to extract data from various Operational Systems, External Systems and Staging Area.

Used heterogeneous data sources, like flat files and Oracle.

Applied Complex Mappings and various Transformations (Filter, Router, Lookup, Update Strategy, and Expression) on the extracted data according to the Business Rules and Technical Requirements.

Created mappings using the transformations such as the Source qualifier, Aggregator, Expression, Router, Filter, Rank, Sequence Generator, and Update Strategy.

Worked on connected as well as unconnected Lookup transformation to look up values in a table.

Creating reusable transformations and mappings using Informatica.

Used debugger to test the data flow and fix the mappings.

Worked on Performance Tuning of various mappings and sessions to identify and remove Bottle Necks, created and monitored Informatica sessions.

Environment: Informatica Power Center 8.1.1, Oracle 9i, Sql Server, TOAD, UNIX.



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