Ankita Agarwal_new (2)

8/2/2019 Ankita Agarwal_new (2)

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AnkitaAgarwal

[email protected]

(732) 438-1906 Ext: 105

SUMMARY

y Over8 years of IT experience, with more than 5 years in design, development of Enterprise DataWarehouses/Data Marts, Data Extraction, using Informatica as ETL Tool.

y Strong knowledge in Dimensional Data Modeling Technique, E-R modeling, Multi-Dimensional DatabaseSchemas like Star schema and Snowflake schema (Fact Tables, Dimension Tables), and handling SCDs.

y Solid experience in Informatica Power Center (versions 8.6/8.1.1/ 7.1) including Designer, WorkflowManager, Workflow Monitor, Repository Manager, Repository Server Admin console.

y Experience in performance tuning of sources, transformations, targets, mappings, worklets, workflows,and sessions.

y Proficient in using Informatica workflow manager, workflow monitor, server manager, PMCMD(Informatica command line utility) to create, schedule and control workflows, tasks, and sessions.

y Involved in migration/conversion of ETL processes from development to production environment.y Expert Knowledge in ETL and SQL query performance tuning to improve the session run times.y Involved in tuning the Oracle SQL queries by using Indexing techniques, Hints and Parallel execution

process.

y Excellent analytical, problem solving skills and a motivated team player with excellent inter-personal skillsand excellent presentation skills.

y Worked for different roles in the project as Team Lead, Configuration Manager and Production Managerand extensively involved with Client communication directly.

TECHNICAL SKILLS

Operating Systems: Linux (Red Hat, Suse) and Windows

Programming Languages: C, C++, Java, J2EE, PL/SQL, C# (ASP.NET, VB.NET), Swings, Visual Basic 6.0, UNIX

Shell Scripting, Python 3.1,PHP 5.2

Databases: MySQL, Oracle 9i, Oracle 10g, Microsoft Access, DB2, MS SQL server 2008

Application Software: Informatica 8.1.4, Business Object, Micro Strategy, Mercury Quality Center,

Redwood Cronacle 7.0, Toad, SQL Developer, Apache Derby, Eclipse

EDUCATION & Certifications:

M.S. in Computer Science from The University of Texas at Dallas, Richardson, TX

B.E. in Computer Science and Engineering (Hons.)University of Rajasthan, Jaipur, India

IBM Certified Database Associate -- DB2 Universal Database V8.1 Family

PROFESSIONAL EXPERIENCE

Blue Cross Blue Shield, Richardson, TX

Informatica Developer (Jan 2010 May 2011)

The Blue Cross and Blue Shield Association (BCBS) is one of the largest health insurance organization in the United

States.The information systems for business was customized and utilized the healthcare enterprise data

warehouse to collect, organize and store data from all the sources to integrate the historic data for end userreporting.

KeyRoles & Responsibilities

y Implemented business plan based on required technical and business needs.y Imported the table definitions into the repository then export the projects, release and package the jobs.y Developed ETL processes to extract the source data and load it into the enterprise-wide data warehouse

after cleansing, transforming and integrating.

y Developed and designed jobs using Informatica Designer based on mapping specifications usingappropriate stages.

y Star schemas and Snow flake schemas were used in developing Informatica jobs.


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y Created source to target mapping and job design documents from staging area to Data Warehouse.y Developed job sequences to execute a set of jobs with restart ability, check points and implemented

proper failure actions.

y Worked on troubleshooting, performance tuning, performance monitoring and enhancement ofInformatica jobs.

y Wrote several SQL queries to extensively test the ETL process.y Worked on programs for scheduling data loading and transformations using Informatica from source

systems to Oracle.

y Provided production support and performed enhancement on existing multiple projects.Environment: Informatica Power Center 8.1, Oracle 9i, SQL*Plus, Toad, Windows 2000, SQL Server 2000, PL/SQL

NIIT Technologies Ltd. Dec 2007 July 2009

Client: AXA Winterthur Insurance, Switzerland

Senior Informatica Developer

Winterthur IDW (Insurance Data Warehouse)

KeyRoles & Responsibilities

y Participated in user meetings, gathered Business requirements & specifications for the Data-warehousedesign. Translated the user inputs into ETL design docs.

y Development of scheduling model in Redwood Cronacle, PL/SQL scripts, functions and packagesy Regression testing, Unit testing, Performance testing and Optimization of Informatica codey Configuration management: configuring all releases and preparing client deliverablesy Developed Informatica Mappings to apply complex business rules and load the data into the Enterprise

data warehouse from various sources like flat files, and oracle db and SAP databases.

y Designed and created mappings and mapplets using Informatica Designer.y Maintained source and target mappings, transformation logic and processes to reflect the changing busines

environment over time.

y Built complex Informatica maps using transformation logics such as Lookup, Aggregator, Update, Filter,Normalizer, Stored Procedure, Sorter, Joiner, Sequence Generator, Router

y Used Lookup Transformation to access data from tables, which are not the source for mapping and also usedUnconnected Lookup to improve performance.

y Worked with Incremental Aggregator in various sessions.y Wrote session commands to configure pre-session and post-session tasks.y Used Workflow Manager for Creating, Validating, Testing and Running the sequential and concurrent Batches

and Sessions, and scheduled them to run at a specified time.

y Tuning Informatica Mappings and Sessions for optimum performance.y Wrote post-session shell scripts to check status (failure/success) after completion of all batches.y Provided production support by monitoring the processes running daily.

Environment: Informatica Power Center 8.1, Oracle 9i, SQL*Plus, Toad, Windows 2000, PL/SQL

Accenture Jan 2006 Dec 2007

Client: AT&T, USA

EDW (Enterprise Data Warehouse)KeyRoles & Responsibilities

y Analyze and understand the requirement documents, and prepare design documentsy Research and test defects/initiativesy Preparation of Unit Test Plans and verification of functional specifications and review of deliverables.y Analyzed the requirements to identify the necessary tables that need to be populated into the staging

database.

y Developed ETL mappings, Transformations and Loading using Informatica Power Center 8.1.0.y Developed mappings and workflows as per business logic, quality and coding standards prescribed for the

module usingInformatica Power Center 8.1.0.


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y Developed, implemented and enforced ETL best practices standards.y Performance tuning and bottleneck resolution.y Created mappings using transformations like Source Qualifier, Aggregator, Expression, lookup, Router,

Filter, Update Strategy, Joiner, Union, and Stored procedure, and XML transformations.

y Worked on Informatica Power Center tools Source Analyzer, Warehouse Designer, Mapping &MappletDesigner, and Transformation Developer.

y Used Error handling strategy for trapping errors in a mapping and sending errors to an error table.y

Wrote Unix Shell scripts to automate workflows.y Used Workflow Manager for creating workflows, work lets, email and command tasks.y Implemented Type I, II changes in slowly changing dimension tables.y Development of mappings in Informatica and reporting in Microstrategy and Business Objectsy Regression Testing and Validation of data

Environment: Informatica Power Center 7.1.3, Oracle 9i, SQL*Plus, Toad, Unix, Windows 2000, Microstrategy,

Mercury Quality Center

CIT and CDAC, New Delhi, India May 2004 Jan 2005

Software Developer

Qwest DUF Splitter

y Developed a methodology to efficiently coordinate data transmission from the telecom servers of QwestCommunications to the customers of United Telecom LLC

y Conceptualized algorithm to split the Daily Usage Files to transmit data in an organized mannery Implemented the algorithm using Java Servlets and Java Server Pages for platform independency

Environment:Core Java, Servlets and JSP

MTNL, New Delhi, India May 2003Jan 2004

Software Developer

Project: MTNL Systems

y Analyzed key features of MTNL communication systems based on WLL technologyy Developed an application to manage data of mission critical applications for the IT cell of MTNLy Designed a user-friendly interface in VB 6.0 with database connectivity to manage data of networking

elements (LANBridge, Switch and Line Terminal Server) for each application of the system

Environment:Visual Basic 6.0, MS Access

ACADEMIC PROJECTS

Multiagent Visualization and Simulation System (MAVS) Aug 2009 May 2011

Technologies: Apache Derby, Java, Swings, Eclipse

y Designed and developed architectural solution for the Data Management System (DMS)y Developed a graphical user interface for DMS using JAVA API and data mining on Agents.

Information Retrieval System Jan 2011 May 2011

Technologies: Python 2.7

y Designed and developed a system which parses text documents, stems it and creates a dictionary to storewords.

y Performed search on the system depending on the query and also the compression on the system.International Christian Fellowship Website Jan 2011 May 2011

Technologies: PHP 5.2, Adobe Dreamweaver CS 5.5,

y Designed and developed a website for ICF for all the members.Lamport Algorithm and File System Aug 2010 Dec 2010

Technologies: Java,C#,C


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y Implemented Lamport Algorithm and File System on distributed network.UT Dallas Feedback System Aug 2009 Dec 2009

Technologies: C# (ASP.NET), MS SQLSERVER 2008

y Conceptualized a feedback system for all the courses taught by instructors in a semesterXML Schema conversion to Star Schema using Data Mining Jan 2006 May 2006

Technologies: XML, PL/SQL

y Conceptualized algorithm to convert XML Schema to Star Schema using prevailing Canonical ConceptModel

AWARDS AND OTHER ACTIVITIES

y Third prize in Rapid-fire Programming and Website Designing competitions, Cordinazo, University ofRajasthan amongst the top 50 colleges from all over India

y Hindi Academy Award for being amongst the topmost students in 10th gradey Technical paper presentation on Data Warehousing and Data Mining at MBMCollege, University of

Rajasthan

y Organizing Committee Chair, DJ Mixing and Movie Making competitions, Cordinazo, University ofRajasthan

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