SUMMARY:

• Over 10+ year of Senior Data Architect/Modeler/Analyst with IT professional experienced in Data Analysis, Data Modeling, Data Architecture, designing, developing, and implementing data models for enterprise - level applications and systems.
• Data Warehousing: Full life-cycle project leadership, business-driven requirements, capacity planning, gathering, feasibility analysis, enterprise and solution architecture, design, construction, data quality, profiling and cleansing, source-target mapping, gap analysis, data integration/ETL, SOA, ODA, data marts, Inman/Kimball methodology, Data Modeling for OLTP, canonical modeling, Dimension Modeling for data ware house star/snowflake design.
• Highly experienced with budgeting, reporting, forecasting and modeling including dashboard reports andpivot tables.
• Experienced in using various Hadoop infrastructures such asMap Reduce,Hive,Sqoop, andOozie.
• Hand on experience configuringRedShift, ElasticSearch and Dynamo DB with EC2 Instances.
• Experience in BI/DW solution (ETL,OLAP, Data mart), Informatica, BI Reporting tool like Tableau and Qlikview and also experienced leading the team of application, ETL, BI developers, Testing team
• Responsible for detail architectural design and data wrangling, data profiling to ensure data quality of vendor data, Source to target mapping
• Strong and Excellent experiencein Data Analysis, Data Migration, Data Validation, Data Cleansing, Data Verification,identifying data mismatch,Data Import, andData Exportthrough the use of multiple ETL tools such as Pentaho, Talend and Informatica Power Centre.
• Experience in developing Entity-Relationship diagrams and modeling Transactional Databases and Data Warehouse using tools likeErwin, ER/StudioandPower Designer
• Logical and physical database designing like Tables, Constraints, Index, etc. using Erwin, ER Studio, TOAD Modeler and SQL Modeler.
• Excellent knowledge in preparing required project documentation and tracking and reporting regularly on the status of projects to all project stakeholders
• Extensive ETL testing experience using Informatica 9x/8x, Talend, Pentaho.
• Work on Background process in oracle Architecture. Also drill down to the lowest levels of systems design and construction.
• Highly skilled in the usage of ETL tools for DataStage (Talend, Informatica, SSIS, SSRS) developing features of Teradata PDE, Amp, Bynet, PE, vDisk and Virtual storage system (VSS).
• Experience of migratingdatafrom RDBMS toRedShift
• Experience in Dimensional Data Modeling, Star/Snowflake schema, FACT & Dimension tables.
• Expertise on Relational Data modeling (3NF) and Dimensional data modeling.
• Experience inInformatica Power Center 9x/8.x/7xwith Oracle SSIS and SQL Server Data WarehouseinMicrosoft DW/BI environments
• Worked on Informatica Power Center tools-Designer, Repository Manager, Workflow Manager.
• Practical understanding of the Data modeling (Dimensional & Relational) concepts like Star-Schema Modeling, Snowflake Schema Modeling, Fact and Dimension tables.
• Experience in Big Data Hadoop Ecosystem in ingestion, storage, querying, processing and analysis of big data.
• Experienced in Technical consulting and end-to-end delivery with architecture, data modeling, data governance and design - development - implementation of solutions.
• Heavy use of Access queries, V-Lookup, formulas, Pivot Tables, etc. Working knowledge of CRM Automation Salesforce.com, SAP.
• Experienced in integration of various relational and non-relational sources such as DB2, Teradata, Oracle, Netezza, SQL Server, NoSQL, COBOL, XML and Flat Files, to Netezza database.
• Business Intelligence: Requirements analysis, Key Performance Indicators (KPI), metrics development, sourcing and gap analysis, OLAP concepts and methods, aggregates / materialized views and performance, rapid prototyping, tool selection, semantic layers Excellent experience in writing SQL queries to validatedatamovement between different layers in data warehouse environment.
• Assist in creating communication materials based on data for key internal /external audiences.
• Skillful in Data Analysis using SQL on Oracle, MS SQL Server, DB2 & Teradata.
• Proficient in System Analysis, ER/Dimensional Data Modeling, Database design and implementing RDBMS specific features.

TECHNICAL SKILLS:

Data Modeling Tools: Erwin, Rational System Architect, IBM Infosphere Data Architect, ER Studio and Oracle Designer

Database Tools: Microsoft SQL Server12.0, Teradata 15.0, Oracle 11g/9i/12c and MS Access

Version Tool: VSS, SVN, GIT.

Project Execution Methodologies: Agile, Ralph Kimball and BillInmondatawarehousing methodology, Rational Unified Process (RUP), Rapid Application Development (RAD), Joint Application Development (JAD)

BI Tools: Tableau 7.0/8.2, Tableau server 8.2, Tableau Reader 8.1,SAP Business Objects, Crystal Reports Packages Microsoft Office 2010, Microsoft Project 2010, SAP and Microsoft Visio, Share point Portal Server

Quality Assurance Tools: Win Runner, Load Runner, Test Director, Quick Test Pro, Quality Center, Rational Functional Tester.

Tools: OBIE 10g/11g, SAP ECC6 EHP5, Go to meeting, Docusign, Insidesales.com, Share point, Mat-lab.

ETL/Datawarehouse Tools: Informatica 9.6/9.1/8.6.1/8.1, SAP Business Objects XIR3.1/XIR2, Web Intelligence, Talend, Tableau 8.2.

Testing and defect tracking Tools: HP/Mercury (Quality Center), Quick Test Professional, Performance Center, Requisite, MS Visio.

Operating System: Windows, Unix, Sun Solaris

PROFESSIONAL EXPERIENCE

Confidential, SFO, CA

Sr. Data Architect/Modeler

Responsibilities:

• Worked as a Data Modeler/Architect to generate Data Models using Erwin and developed relational database system.
• Involved in requirement gathering and analysis with Business analyst, systems analysts, Developers and DBA and translated them into detailed reporting requirements.
• Performed data standardization to drive meaningful business reports based on consultation and analysis of internal and external customers and product needs.
• Installed and implementedRACFon a 3090 VM/MVS mainframe
• UsingTIBCOBusiness Works to create and invocate SOAP over HTTP Web Service.
• Used vlookups, macros andpivottables fordatamining.
• Executing change controls on DB2/ZOS environment throughTSO, SPUFI.
• Expertise inDataManipulations usingSASdatastep, such asSASFormats/Informats, Merge, Procedures like PROC APPEND, PROC DATASETS, PROC SORT, PROC TRANSPOSE
• Designed the Logical Data Model using ERWIN 9.64 with the entities and attributes for each subject areas.
• Build and Deployed EAR files usingTIBCODesigner, Administrator.
• Developed long term data warehouse roadmap and architectures, designs and builds the data warehouse framework per the roadmap.
• Implemented Change Data Capture technology inTalendin order to load deltas to a Data Warehouse.
• Involved in extraction, transformation and loading ofdatadirectly from different source systems (flat files/Excel/Oracle/MSSQL/Teradata) usingSAS/SQL,SAS/macros.
• Hands on experience in Implementing/building big data and Analytical Architecture onAmazon Web Services (AWS)
• Reviewed the files of hundreds of mortgage companies using vlookup andpivottables.
• Implemented integration of SSL based Web Service calls usingTIBCOBW.
• Experienced in Cloud automation usingAWSCloud Formation templates, Python, Ruby, Chef (DevOps), Vagrant.
• Researched and compared EMC / VMware'sGemFireand SQLFire products and proposed the initial solution
• Worked as a Hadoop consultant on (Map Reduce/Pig/HIVE/Sqoop).
• Worked on loadingdatafrom console log files & Oracle toRedshiftfor Tableau reporting.
• Used thedataIntegration toolPentahofor designing ETL jobs in the process of buildingDatawarehouses andDataMarts.
• Involved in architecting the data integration, created the data model for the data warehouse, advised the client on the importance of data governance to consistently maintain the data quality
• Designed and developed architecture fordataservices ecosystem spanning Relational, NoSQL, and BigDatatechnologies.
• Specifies overall Data Architecture for all areas and domains of the enterprise, including Data Acquisition, ODS, MDM, Data Warehouse, Data Provisioning, ETL, and BI.
• Maintaindatamapping documents, business matrix and otherdatadesign artifacts that define
• Data modeling, Design, implement, and deploy high-performance, custom applications at scale on Hadoop /Spark.
• Created large datasets by combining individual datasets using various inner and outer joins inSAS/SQL and dataset sorting and merging techniques usingSAS/Base.
• Subject Matter Expert in building analytics on Real-time frameworks such asKinesis or Kafka, and/or Data Warehousing
• Debugged and compiled a DBMS release written in PL/I, running in CMS,TSO, and MVS environments. Developed CAD interface programs in C and IBM JCL system installation
• Developed and implemented data cleansing, data security, data profiling and data monitoring processes.
• Applied data analysis, data mining and data engineering to present data clearly.
• Ensured high-quality data and understand how data is generated out experimental design and how these experiments can produce actionable, trustworthy conclusions.
• Maintained the user accounts (IAM), RDS, Route 53, VPC, RDB, Dynamo DB, SES, SQS and SNS services inAWScloud.
• Worked in writingHadoopJobs for analyzing data usingHive, Pig accessingText format files, sequence files, Parquet files.
• EC2 instance /Redshift/S3 launching/HANA One, configuration and maintenance
• Reverse engineered some of the databases using Erwin.
• Proficiency in SQL across a number of dialects (we commonly write MySQL, PostgreSQL, Redshift, SQL Server, and Oracle).
• Extensive ETL testing experience usingInformatica 9x/8x,Talend,Pentaho.
• Has complete knowledge on AWS services offered for collecting, processing, storing and analyzing big data(AWS Kinesis Streams, Lambda, Elastic Map Reduce, DynamoDB, Redshift, Elasticserach, QuickSight)
• Loading largedatafrom the different Mainframe (JCL) into Sybase using BCP utility of Sybase.
• Design and development ofETLroutines to extractdatafrom heterogeneous sources and loading to ActuarialDataWarehouse.
• Good Experience in creating cubes by usingPentahoSchema Workbench
• Mainframe Software development in COBOL andJCLfor z/OS System for Vanguard Institutional Services
• Advises/leads projects involving the ETL related activities and the migration or conversion of data between enterprise data systems. Coordinates interactions between central IT, business units, and data stewards to achieve desired organizational outcomes.
• Gathered and analyzed existing physical data models for in scope applications and proposed the changes to the data models according to the requirements.
• Wrote ETL usingTalendto pulldatafrom various spreadsheets, MySQL, Informix, SQL Server and Oracle to loaddatato MySQL and Oracle databases in the Amazon Cloud and on-premise.
• Advises on and enforces data governance to improve the quality/integrity of data and oversight on the collection and management of operational data.
• UsedHiveto analyze data ingested intoHBaseby usingHive-HBaseintegration and compute various metrics for reporting on the dashboard
• Build both real time and batch oriented big data solutions using services such asAmazon Elastic Compute Cloud (EC2), S3, DynamoDB, Elastic Map Reduce (EMR), Kinesis, Redshift, and Relational Database Service (RDS)
• Used IBM Mainframe to Oracle RAC/Linux environment migration, Oracle Fusion Middleware products, focusing on SOA, BPEL, and Integration technologies in relation to the corporate Mainframe ( Cobol,JCL, DB2) to Open systems Migration ( Java, Ksh, Oracle SOA Suite, and Oracle RDBMS)
• Able to guide / partner with VP / Directors for architecting solutions for the Big data Organization
• Integrated crystal reports using Erwin Data Modeler.
• Worked withNoSQL MongoDBand heavily worked onHive, Hbase and HDFS
• Us Erwin to support for TeradataV15 and SSL.
• Developed Data Mapping, Data Governance, and Transformation and cleansing rules for the Master Data Management Architecture involving OLTP, ODS.
• Involved in designing Logical and Physical data models for different database applications using the Erwin.
• Experience with AWS ecosystem (EC2, S3, RDS, Redshift).

Environment: Oracle 12c, MS-Office, SQL Architect, TOAD Benchmark Factory, Teradatav15, SQL Loader, Big Data SharePoint, ERwin r 9.64, DB2, MS-Office, SQL Server 2008/2012.

Confidential, Detroit, MI

Sr. Data Analyst/Modeler

Responsibilities:

• Gathered and translated business requirements, worked with the Business Analyst and DBA for requirements gathering, business analysis, and testing and project coordination.
• Extensively used Erwin 9.1 for developing data model using star schema methodologies
• Experienced in Using CA Erwin Data Modeler (Erwin) for Data Modeling (data requirements analysis, database design etc.) of custom developed information systems, including databases of transactional systems and data marts.
• Performed statisticaldataanalysis, generated ad-hoc reports, tables, listings and graphs using tools such asSAS/Base,SAS/Macros,SAS/Graph,SAS/SQL andSAS/STAT.
• Being involved in other projects utilizing IMS, DB2 Z/OS WITH TOOLS,TSO, PROFS on IBM 3090 and Lotus 1-2-3 (BASIC) on IBM PC.
• In parallel to Development acted as aTalendAdmin: Creating Projects/ Scheduling Jobs / Migration to Higher Environments & Version Upgrades
• Experienced working with Excel Pivot and VBA macros for various business scenarios.
• Involved in Java, J2EE coding and job controlling with mainframeJCL
• Owned and managed all changes to the data models. Created data models, solution designs and data architecture documentation for complex information systems.
• Involved in writing code using BaseSAS&SAS/Macros to clean and validatedatafrom tables.
• Worked with reverse engineering Data Model from Database instance and Scripts.
• Extensively used Erwin r9.1 for Data modeling. Created Staging and Target Models for the Enterprise Data Warehouse.
• Own the design, development, and maintenance of on-going metrics, reports, analyses, dashboards, etc Integrate with partnerETL, analytics and visualization (BI Tools)
• Designed Star and Snowflake Data Models for Enterprise Data Warehouse using ERWIN.
• Worked with Data Steward Team for designing, documenting and configuring Informatica Data Director for supporting management of MDM data.
• Involved inDataExtraction for various Databases & Files usingTalend.
• Creation of BTEQ, Fast export, Multi Load, TPump, Fast load scripts for extracting data from various production systems .
• Developed Spark streaming application to pull data from cloud to Hive table.
• Worked on AWS Redshift and RDS for implementing models and data on RDS and Redshift.
• Developed mapping spreadsheets for (ETL) team with source to target data mapping with physical naming standards, data types, volumetric, domain definitions, and corporate meta-data definitions.
• Responsible for developing and supporting a data model and architecture that supports and enables the overall strategy of expanded data deliverables, services, process optimization and advanced business intelligence.
• UsedSASProcedures like PROC FREQ, PROC SUMMARY, PROC MEANS, PROC SQL, PROC SORT, PROC PRINT, PROC Tabulate, PROC UNIVARIATE, PROC PLOT and PROC REPORT to generate various regulatory and ad-hoc reports.
• Experience with scripting for automation (e.g., Unix shell scripting, Python, Perl, Ruby)
• Excellent experience and knowledge on data warehouse concepts and dimensional data modeling usingRalph Kimball methodology.
• Enhancement and support in analysis, design and programming of IBM Mainframe 390 Z/OS MVS,TSObased with COBOL and IMS DB/DC hierarchical database system, VSAM, File Aid, Sync sort application systems for the contract clients
• SupportedJCLimplementation for User acceptance testing and Production Simulation Testing.
• Designed and troubleshootPentahodataintegration (kettle) jobs, transformations.
• Designing Star Schema and Snow Flake Schema on Dimensions and Fact Tables
• Expertise in Informatica, DB2, Microstrategy and UNIX Shell scripting
• UsedTalendfor Extraction and Reporting purpose.
• Worked with Data Vault Methodology Developed normalized Logical and Physical database models
• Designed ER diagrams (Physical and Logical using Erwin) and mapping the data into database objects and identified the Facts and Dimensions from the business requirements and developed the logical and physical models using Erwin.
• Strong understanding of ETL concepts and experience building them with large-scale, complex datasets
• Analysis, reporting and tracking of defects on a daily basis.
• Established and maintained comprehensive data model documentation including detailed descriptions of business entities, attributes, and data relationships.
• Implemented Data Vault Modeling Concept solved the problem of dealing with change in the environment by separating the business keys and the associations between those business keys, from the descriptive attributes of those keys using HUB, LINKS tables and Satellites.
• Responsible for maintenance and enhancements in reporting systems usingSAS/BASE,SAS/MACRO,SAS/ STAT, andSAS/GRAPH.
• Used Amazon EC2 instance to configure Cron jobs and deployTalendworkflows.
• Created Hive External tables and loaded the data into tables and query data usingHQL
• Wrote and running SQL, BI and other reports, analyzing data, creating metrics/dashboards/pivots/etc.
• Gather and analyze business data requirements and model these needs. In doing so, work closely with the users of the information, the application developers and architects, to ensure the information models are capable of meeting their needs.
• Working along with ETL team for documentation of transformation rules for data migration from OLTP to warehouse for purpose of reporting.
• Transformed Logical Data Model to Physical Data Model ensuring the Primary Key and Foreign key relationships in PDM, Consistency of definitions of Data Attributes and Primary Index considerations.

Environment: Python, MySQL, PostgreSQL,, SQL Server, Erwin, Informatica, AWS Redshift, RDS, Big Data, JDBC, NOSQL, Spark, Scala, Star Schema, Snow Flake Schema .

Confidential, Bronx, NY

Sr. Data Analyst/Modeler

• Developed the logical data models and physical data models that capture current state/future state data elements and data flows using ER Studio.
• Reverse Engineered DB2 databases and then forward engineered them to Teradata using ER Studio.
• Part of team conducting logical data analysis and data modeling JAD sessions, communicated data-related standards .
• Performed statistical analysis anddatamanagement on studydataby utilizing appropriate statistical methods usingSASandSAStools.
• Involved in meetings with SME (subject matter experts) for analyzing the multiple sources.
• Involved in SQL queries and optimizing the queries in Teradata.
• Created DDL scripts using ER Studio and source to target mappings to bring the data from source to the warehouse.
• Expedited the ETL process of health insurancepayerservice funddatainto SQL Server databases through SPSS Modeler stream creation. In addition, accelerated reformatting of ETL schema to account forpayermodifications ofdatafile formats.
• Developed the design & Process flow to ensure that the process is repeatable.
• Performed analysis of the existing source systems (Transaction database)
• Involved in maintaining and updating Metadata Repository with details on the nature and use of applications/datatransformations to facilitate impact analysis.
• Created DDL scripts using ER Studio and source to target mappings to bring the data from source to the warehouse.
• Designed the ER diagrams, logical model (relationship, cardinality, attributes, and, candidate keys) and physical database (capacity planning, object creation and aggregation strategies) for Oracle and Teradata .
• Worked in importing and cleansing ofdatafrom various sources like Teradata, Oracle, flatfiles, MS SQL Server with high volumedata
• Designed Logical & Physical Data Model /Metadata/ data dictionary usingErwinfor both OLTP and OLAP based systems.
• Direct the development, testing and maintenance ofSAS-EBI reports
• Identify, assess and intimate potential risks associated to testing scope, quality of the product and schedule.
• Wrote and executed SQL queries to verify that data has been moved from transactional system to DSS, Data warehouse, data mart reporting system in accordance with requirements.
• Worked in importing and cleansing of data from various sources like Teradata, Oracle, flat files, SQL Server 2005 with high volume data
• Worked extensively on ER Studio for multiple Operations across Atlas Copco in both OLAP and OLTP applications.
• Generated comprehensive analytical reports by running SQL queries against current databases to conductdataanalysis.
• Produced PL/SQL statement and stored procedures in DB2 for extracting as well as writingdata.
• Co-ordinate all teams to centralize Meta-data management updates and follow the standard Naming Standards and Attributes Standards for DATA &ETL Jobs.
• Finalize the naming Standards for Data Elements and ETL Jobs and create a Data Dictionary for Meta Data Management.
• Wrote and executed SQL queries to verify that data has been moved from transactional system to DSS, Data warehouse, data mart reporting system in accordance with requirements.
• Worked in importing and cleansing of data from various sources like Teradata, Oracle, flat files, SQL Server 2005 with high volume data

Environment: ER Studio, Business Objects XI, Rational Rose,Datastage, MS Office, MS Visio, SQL, SQL Server 2000/2005, Rational Rose, Crystal Reports 9, SQL Server 2008, SQL Server Analysis Services, SSIS, Oracle 10g

Confidential, Minnetonka, MN

Sr. Data Analyst/Modeler

• Designed Logical Data Models and Physical Data Models using Erwin.
• Developed the Conceptual Data Models, Logical Data models and transformed them to creating schema using ERWIN.
• Analyzed the business requirements by dividing them into subject areas and understood the data flow within the organization
• Generated a separate MRM document with each assignment and shared it on SharePoint along with the PDF of updated data models.
• Developed data Mart for the base data in Star Schema, Snow-Flake Schema involved in developing the data warehouse for the database.
• Created a list of domains in Erwin and worked on building up the data dictionary for the company
• Created DDL scripts for implementing Data Modeling changes. Created ERWIN reports in HTML, RTF format depending upon the requirement, Published Data model in model mart, created naming convention files, co-coordinated with DBAs' to apply the data model changes.
• Analyzed the physicaldatamodel to understand the relationship between existing tables. Cleansed the unwanted tables and columns as per the requirements as part of the duty being aDataAnalyst.
• Worked very close withDataArchitectures and DBAteam to implementdatamodel changes in database in all environments.
• Create conceptual data models including categories, subject areas, key entities and entity relationships conforming to the applicable data standards within the scope of the business requirements and leveraging prior health care payer experience
• Created a Data Mapping document after each assignment and wrote the transformation rules for each field as applicable
• Worked on Unit Testing for three reports and created SQL Test Scripts for each report as required
• Extensively used Erwin as the main tool for modeling along with Visio
• Established and maintained comprehensive data model documentation including detailed descriptions of business entities, attributes, and data relationships.
• Worked on Metadata Repository (MRM) for maintaining the definitions and mapping rules up to mark.
• Worked on data mapping process from source system to target system. Created dimensional model for the reporting system by identifying required facts and dimensions using Erwin
• Developed enhancements toMongo DBarchitecture to improve performance and scalability.
• Forward Engineering the Data models, Reverse Engineering on the existing Data Models and Updates the Data models.
• Performeddatacleaning anddatamanipulation activities using NZSQL utility.

Environment: OracleDataModeler, Teradata 12, SSIS, Business Objects, Erwin r8.2, Oracle SQL Developer, SQL Server 2008, ER/Studio Windows XP, MS Excel.

Confidential

Sr. Data Analyst/Modeler

• Worked with Business users during requirements gathering and prepared Conceptual, Logical and PhysicalDataModels.
• Wrote PL/SQL statement, stored procedures and Triggers in DB2 for extracting as well as writing data.
• Attended and participated in information and requirements gathering sessions
• Translated business requirements into working logical and physical data models for Data warehouse, Data marts and OLAP applications.
• Designed Star and Snowflake Data Models for Enterprise Data Warehouse using ERWIN
• Created and maintained Logical Data Model (LDM) for the project. Includes documentation of all entities, attributes, data relationships, primary and foreign key structures, allowed values, codes, business rules, glossary terms, etc.
• Validated and updated the appropriate LDM's to process mappings, screen designs, use cases, business object model, and system object model as they evolve and change.
• Created business requirement documents and integrated the requirements and underlying platform functionality.
• Excellent knowledge and experience in Technical Design and Documentation.
• Used forward engineering to create a physical data model with DDL that best suits the requirements from the Logical Data Model.
• Involved in preparing the design flow for theDatastageobjects to pull thedatafrom various upstream applications and do the required transformations and load thedatainto various downstream applications
• Performed logicaldatamodeling, physicaldatamodeling (including reverse engineering) using the ErwinDataModeling tool.
• Experience in developing dashboards and client specific tools in Microsoft Excel and Power Point.
• Responsible for the development and maintenance of Logical and Physical data models, along with corresponding metadata, to support Applications.

Environment: Erwin8.0, ER- Studio6.0/6.5, Toad 8.6, Informatica 8.0, IBM OS 390(V6.0), DB2 V7.1, Oracle9i, PL/SQL, Solaris 9/10, Windows Server 2003 & 2008. NZSQL,