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Informatica Dev & Prod Supp Analyst Resume

Dallas, TX

SUMMARY

  • Nine years of diversified experience in the field of Information Technology and Data warehousing using Informatica Power Center/PowerExchange/B2B Dx/IDQ 10.1/9.6/8.6/8.1/7.1/6.2 Target Databases and developing Strategies for Extraction, Transformation and Loading (ETL) mechanism - using Informatica.
  • Extensive experience in complete Data warehouse project development life cycle and Software Development Life Cycle (SDLC) including System Requirements Analysis, Design, Development, Testing, Maintenance and Enhancement in variety of technological platforms with special emphasis on Data Warehouse and Business Intelligence applications.
  • Complete understanding of Soft Ware Development methodologies like waterfall, Agile etc.
  • Data Processing experience in designing and implementing Data Mart applications, mainly transformation processes using Informatica PowerCenter 8.6.
  • Extensively worked on Informatica PowerCenter Transformations such as Source Qualifier, Lookup, Filter, Expression, Router, Normalizer, Joiner, Update Strategy, Rank, Aggregator, Stored Procedure, Sorter and Sequence Generator.
  • Good knowledge in OLAP and OLTP process.
  • Understanding & Working knowledge of Informatica CDC (Change Data Capture).
  • Proficiency in using Informatica Power Center tool to design data conversions from wide variety of sources.
  • Strong in Data warehousing concepts, dimensional Star Schema and Snowflake Schema methodologies
  • Extensively provided end to end 24/7 Production Support by monitoring data into a complex high volume environment using Quick Base ticket logging system.
  • Expertise in OLTP/OLAP System Study, Analysis and E-R modeling, developing Database Schemas like Star Schema and Snowflake Schema used in relational, dimensional and multi-dimensional modeling.
  • Proficient in using Informatica workflow manager, Workflow monitor to create, schedule and control workflows, tasks, and sessions
  • Experience in Performance tuning of the Informatica and Oracle.
  • Expertise in implementing complex Business rules by creating complex mappings / mapplets, shortcuts, reusable transformations and Partitioning Sessions.
  • Experience in Performance Tuning of sources, targets, mappings, transformations and sessions.
  • Extensively worked on L1 & L2 production support related issues and analyses issue priority and address to L3 team with details and follow up on items.
  • Providing Level 2 support for Tier 0 application with a four hour SLA. Liaison with L3 and DEVOPS when production issues occur and triage resolutions within the SLA window.
  • Responsible for creating conference calls for groups to discuss incidents that are production related, time or scheduled related incidents.
  • Coordinate with DEV teams and work with support teams to move fixes to production and CAB team.
  • Hands on experience using query tools like TOAD, SQL Developer, PLSQL developer and Teradata SQL Assistant.
  • Experience on utilities like BTEQ, FastLoad, MultiLoad, TPump, FastExport, TPT.
  • Experience in working with Informatica Admin team on installing Informatica server, power center client, B2B DX client in Development, QA and Prod machines.
  • Experienced with working on Onshore Offshore Support Model and shifts.
  • Experience in working with production support team and Change management and Incident Management and Deployment Management teams.
  • Experience in using Informatica Data Quality IDQ for Data Profiling, Standardization, Enrichment, Matching, Consolidation transformations.
  • Experience in using the Informatica command line utilities like pmcmd to execute workflows in non-windows environments.
  • Extensively worked on various databases including Oracle 10g, SQL Server, DB2, and Teradata.
  • Experience in Integration of various data sources like Oracle, SQL Server, and Flat Files.
  • Extensively worked with SQL loader for bulk loading into the oracle database.
  • Experience in MS SQL Server 2008/2005/2000 , Business Intelligence in MS SQL Server Integration Services (SSIS), MS SQL Server Reporting Services (SSRS), and MS SQL Server Analysis Services (SSAS).
  • Experienced in designing high level ETL architecture and Framework, created, configured, and fined tuned ETL workflows designed in DTS for overall data transfer from the OLTP to OLAP with the help of SSIS.
  • Expert in designing and scheduling complex SSIS Packages for transferring data manually from multiple data sources like SQL Server 2000, Oracle Database, Excel, Flat file, Oracle to Microsoft SQL Server by using SSIS and DTS utility to SQL server 2005/2008.
  • Experience in UNIX shell scripting, CRON, FTP and file management in various UNIX environments.
  • Proficient in understanding business processes / requirements and translating them into technical requirements.
  • Highly adept Confidential creation, execution, testing and debugging of Informatica mappings, mapplets, sessions, tasks, worklets and workflows in UNIX and Windows environment.
  • Ability to work independently or in a team environment or in a rapid pace environment.
  • Possess strong interpersonal skills, communication and presentation skills with the ability to interact with people Confidential all levels.

TECHNICAL SKILLS

Data Warehousing ETL: Informatica PowerCenter 10.x/9.x/ 8.x/7.x/6.x/5.x, (Source Analyzer, Warehouse Designer, Transformation Developer, Mapplet Designer, Mapping Designer, Repository Manager, Workflow Manager, Workflow Monitor and Informatica Server) ETL,Informatica Data Quality IDQ, IDE, Informatica B2B DX, Repository, Metadata, Data Mart, OLAP, OLTP,SAP BODS, DW, ECC, SLT.

SQL Server BI: SQL Server Management Studio, SQL Server Business Intelligence Development Studio, MS SQL Enterprise Manager, SQL Query Analyzer, SQL Server Profiler, Database Engine Tuning Advisor, DTS, SSIS, SSRS, SSAS, MS Visual Studio 2008, ODBC, FTP, IIS, MS Office 2000.

Data Modeling: Physical Modeling, Logical Modeling, Relational Modeling, Dimensional Modeling (Star Schema, Snow-Flack, Dimensions), Entities, Attributes, Cardinality, ER Diagrams, ERWIN 4.0/3.5.2/2. x.

Databases: Oracle 11g/10g/9i/8.0, Sybase, SSIS, MS SQL Server 7.0/2000/2005/2008 , DB2 8.1, OLTP, Teradata, Netezza,Sybase,SAP.

Programming: SQL, T-SQL, PL/SQL, SQL*Loader, Unix, Shell Scripting, SQL Tuning/Optimization, C,Cobol, HTML, Perl

Tools: TOAD,, Toad For Data Analyst, SQL*Plus, SQL Developer, Excel, Word, Autosys Scheduler, DAC, BTEQ, SQL Assistant, TWS, BMC Control-M, Rapid SQL, Aginity for Netezza, PuTTY, WinSCP, Notepad++

Reporting Tools: Oracle Business Intelligence, Cognos, SAP Business Objects.

Environment: UNIX, Windows XP/Vista

PROFESSIONAL EXPERIENCE

Confidential, Dallas, TX

Informatica Dev & Prod Supp Analyst

Responsibilities:

  • Worked with Teradata utilities like Teradata Parallel Transporter (TPT), BTEQ, Fast Load, Multi Load, Tpump and Worked with work tables, log tables, error tables in Teradata.
  • Deep understanding of all technical components of the Informatica product suite (Power Center, Power Exchange, IDQ, B2B Data Exchange, B2B Data Transformation.
  • Coordinate with offshore Team to improve the applications to run efficiently within the nightly schedule window and meets the business requirements.
  • Provide development support, including walk through approvals, to other ETL application resources to insure that standards are followed and optimized workflow is implemented.
  • Coordinate and work with multiple development teams, outside vendors and other support areas for making improvements in the nightly schedules or correcting bugs.
  • Provide on-call support as needed and worked with internal and external resources to resolve production issues in a timely manner Ensure production environment stability and level of performance .
  • Analyze problems or issues with a range of complexity from limited to moderate, escalating the most complex. Collaborate with other IS technical groups as required on problem determination, solution implementation, and thorough documentation of progress and results
  • Apply expert judgement and professional discretion to track ticket patterns, understand business system impacts, determine priority and course of action for escalating tickets
  • Manage and track all incidents and metrics for EIM queue, monitor and facilitate escalation of requests using ITSM software.
  • During weekend as primary (on call) shifts, coordinated with upstream and downstream applications implementation that includes, application updates, DB upgrades, CRQ, UNIX upgrades and scheduled downtimes for maintenance.
  • As Production support analyst apart from working on call issues, also have experience working on manually assigned incident ITSM tickets such as moving processing Prod data to different lower level UAT environments as requested by the clients.
  • Experienced in Designing of logical and physical models, and walkthroughs of data flow and data mapping with business users.
  • Manage and own application Bugs and incident life cycle, and drive those to permanent resolutions, implement preventive measures to avoid repetitive issues.
  • Experienced in taking complete responsibility of driving incidents/ major problems to the resolution and documenting the resolution in knowledge base.
  • Provided L1 & L2 support on multiple applications across Data Management horizontal primarily met customer expectations on SLA and Process.
  • Communicate with L3 support team in different regions and facilitate the resolution of issue outside his primary application support area.
  • Investigation of underlying cause of day to day production issues and drive through resolution independently.
  • Experienced in creating and maintaining Technical Design document and Load Script document with workflow diagrams and mapping diagrams with all the details for modification to the existing code, Defect fix and code from scratch.
  • Daily spot check of system health, monitoring the main jobs and File Request Process.
  • Responsible for 24 x 7 production system support, including off hours and weekend 'on call' production support responsibilities.
  • As a Production support analyst strengthening and driving Production Services service delivery capability, reinforcing SME knowledge in the team and across all regions.
  • Maintain and own bug management and incident resolution process Communicate with stakeholders in case of delays or SLA breaches Resolve bugs within defined service levels.
  • Experience with Remedy ticketing system like Change Management and Incident Management.
  • Demonstrated experience with Microsoft Office Suite - Excel, Outlook, SharePoint etc.
  • Ability to perform root-cause analysis and issue resolution as L1 &L2 Production Support prospective.
  • Developed DX workflows B2B DX environment after passing profile parameters and integrating with PC workflows.
  • Informatica B2B Extensively Worked in Processing Structured and Unstructured data.
  • Carrying out ETL, monitoring jobs, fixing issues and tracking tickets etc .
  • Performed tuning and optimization of complex SQL queries using Teradata Explain.
  • Created a BTEQ script for pre population of the work tables prior to the main load process.
  • Created reports using BTEQ scripts reporting functionalities and FastExport for the end user.
  • Scheduling of jobs & Responsible for Monitoring of Jobs and re running if gets aborted.
  • Responsible for Production Support to resolve the ongoing issues and troubleshoot the problems.
  • Informing stakeholders for any outage observed & assure them to give a speedy resolution for the same also updating status of progress of restoration work.
  • Perform custom, ad-hoc data analysis and reporting based on stakeholder requests within SLA.
  • Excellent problem solving skills with strong technical background and good inter-personal skills, Quick learner and excellent team player.

Environment: Informatica Power Center 9.6, Informatica B2B DX Console, Autosys Scheduler, DAC, MS SQL Server 2008, SSIS, SSRS, T-SQL, UNIX, Perl Script, BMC Remedy, ITSM, SVN subversion, WinSCP, Putty, Netezza, Aginity, Toad for Data Analyst, Toad 11.6, Oracle 11g, Teradata13,SQL Assistant, BTEQ, SQL Developer, MS Xcel, Flat files.

Confidential, Irving, TX

Informatica Developer

Responsibilities:

  • Designed, developed mappings, work flows to extract the data from existing ADW SQL Server source system and loaded into CMB DW Teradata database.
  • Worked on complete life cycle from Extraction, Transformation and Loading of data using Informatica Power Center
  • Worked on Informatica Power Center tools- Designer, Repository Manager, Workflow Manager, and Workflow Monitor .
  • Developed mappings using Mapping Designer and worked with Aggregator, Lookup, Filter, Router, Joiner, Source Qualifier, Expression, Stored Procedure, Sorter and Sequence Generator transformations.
  • Well acquainted using Teradata utilities BTEQ, Fast Load, Multi Load, Fast Export, Tpump, SQL Assistant and SQL Administrator.
  • Extensively worked with both Connected and Un-Connected Lookups and Look up Caches like Persistent Cache, Static Cache, and Dynamic Cache to improve the performance of the lookup transformations.
  • Developed and documented Data Mappings/Transformations, and Informatica sessions as per the business requirement.
  • Worked in the Agile/ Scrum development environment with frequently changing requirements.
  • Developed unit test plans for each scenario and programmed for data validation and proper error handling to manage the transactions without any data loopholes.
  • Extensively worked on Performance Tuning Confidential the mapping level, session level, source level, and the target level for the mappings which were taking long time to complete..

Environment: Informatica Power Center 9.5, Oracle 11g, Teradata 13.0, SQL Assistant, MS SQL Server 2008,SSIS, SSRS, Toad 10.6, SQL Developer, DB2, UNIX, Notepad++, WinSCP, Putty, Flat files.

Confidential, Tempe, AZ

Informatica Developer/Prod Suport

Responsibilities:

  • Worked closely with the Business analysts and attended meetings to gather and discuss the requirements for enhancements and defect fixes for various projects
  • Designed, developed mappings, work flows to extract the data from existing SAP R3 code source system and loaded into Servigistics database.
  • Analyzed and Identified the Tables/Views, Procedures and ETL objects that need to be migrated and prepared necessary Documentation.
  • Worked on complete life cycle from Extraction, Transformation and Loading of data using Informatica.
  • Developed reusable ETL components like Transformations and Mapplets.
  • Monitored day to day Loads, Addressed & resolved Production issues in an abrupt & timely manner and provided support for the ETL jobs running in Production in order to meet the SLA's.
  • Provided support and quality validation through test cases for all stages of Unit and Integration testing.
  • Worked with several facets of the Informatica PowerCenter tool - Source Analyzer, Data Warehousing Designer, Mapping & Mapplet Designer and Transformation Designer. Development of Informatica mappings for better performance.
  • Developed mappings using Mapping Designer and worked with Aggregator, Lookup, Filter, Router, Joiner, Source Qualifier, Expression, Stored Procedure, Sorter and Sequence Generator transformations.
  • Involved in enhancements and maintenance activities of the data warehouse including tuning, modifying of stored procedures for code enhancements.
  • Configured the sessions using workflow manager to have multiple partitions on Source data and to improve performance. Understand the business needs and implement the same into a functional database design.
  • Effectively used Informatica parameter files for defining mapping variables, workflow variables, FTP connections and relational connections.
  • Involved in migrating objects to different environments using Deployment groups and Labels.
  • Prepared various documents like ETL Specification doc, Technical Design doc, Run Book etc.
  • Worked with Informatica Partitioning when dealing with huge volumes of data and worked on parallelism in loads by partitioning workflows using Pipeline, Round-Robin, Hash, Key Range and Pass-through partitions.
  • Scheduled configured various daily and monthly ETL loads using BMC Control-M Scheduler.
  • Worked with Informatica Partitioning when dealing with huge volumes of data and worked on parallelism in loads by partitioning workflows using Pipeline, Round-Robin, Hash, Key Range and Pass-through partitions.
  • Worked with Teradata utilities like Teradata Parallel Transporter (TPT), BTEQ, Fast Load, Multi Load, Tpump and Worked with work tables, log tables, error tables in Teradata.
  • Worked on Teradata SQL, BTEQ, MLoad, FastLoad, and FastExport for Ad-hoc queries, and build UNIX shell script to perform ETL interfaces BTEQ, FastLoad orFastExport.
  • Wrote numerous BTEQ scripts to run complex queries on the Teradata database. Used volatile table and derived queries for breaking up complex queries into simpler queries.
  • Experienced in configuring and monitoring informatica jobs in BMC Control-M scheduler.
  • Involved in all phases of SDLC from requirement, design, development, testing and support for production environment.
  • Resolved Production issues and helped in promoting the code to different environments for testing needs and participated in the deployment group.
  • Resolved Production issues and helped in promoting the code to different environments for testing needs and participated in the deployment group.
  • Participate in project status meetings, peer reviews and other events with developers to get the status of the deliverables.
  • Creating and modifying existing Technical Design Specification document and other client deliverables for different releases.
  • Coordinated and interacted with other teams to maintain integrity in performing the tasks and execution of the loads appropriately in a timely manner.

Environment: Informatica Power Center 9.5, Oracle 11g, Teradata 12.0, SQL Assistant, MS SQL Server 2008, Toad 10.6, SQL Developer, BMC Control-M Scheduler, SAP R3 Connector, ECC and BW, UNIX, Notepad++, WinSCP, Putty, Flat files.

Confidential, Addition, TX

Informatica Developer

Responsibilities:

  • Interacted with business community and gathered requirements based on changing needs. Incorporated identified factors into Informatica mappings to build Data Warehouse.
  • Designed, developed data maps using Power Exchange to extract the data from existing mainframe source system.
  • Extensively used Informatica Client tools -- Informatica Repository Manager, Informatica Designer, Informatica Workflow Manager and Informatica Workflow Monitor.
  • Involved in all phases of SDLC from requirement, design, development, testing and support for production environment.
  • Responsible for scheduling workflows, error checking, production support, maintenance and testing of ETL procedures using Informatica session logs.
  • Worked on developing workflows and sessions and monitoring them to ensure data is properly loaded on to the target tables.
  • Involved in unit testing, Integration testing and User acceptance testing of the mappings.
  • Used various performance enhancement techniques to enhance the performance of the sessions and workflows.
  • Scheduled configured various daily and monthly ETL loads using BMC Control-M Scheduler.
  • Worked with Informatica Partitioning when dealing with huge volumes of data and worked on parallelism in loads by partitioning workflows using Pipeline, Round-Robin, Hash, Key Range and Pass-through partitions.
  • Worked with PMCMD to interact with Informatica Server from command mode and execute the shell scripts.
  • Worked with Teradata utilities like Teradata Parallel Transporter (TPT), BTEQ, Fast Load, Multi Load, Tpump and Worked with work tables, log tables, error tables in Teradata.
  • Experienced in configuring and monitoring informatica jobs in BMC Control-M scheduler.
  • Resolved Production issues and helped in promoting the code to different environments for testing needs and participated in the deployment group .
  • Participate in project status meetings, peer reviews and other events with developers to get the status of the deliverables.
  • Extensively used variables/parameters wherever possible in mappings, sessions, workflows to ease development efforts.
  • Creating and modifying existing Technical Design Specification document and other client deliverables for different releases.
  • Extensively worked in the Performance Tuning of the programs, ETL Procedures and processes.
  • Implemented various Performance Tuning techniques on Sources, Targets, Mappings, and Workflows.

Environment: Informatica Power Center 9.1, Informatica Power Exchange 8.x, Teradata 13.0, SQL Assistant, UNIX, Perl Script, BMC Control-M Scheduler, SVN subversion, WinSCP, Putty, EBCDIC, Toad 10.6, Oracle 11g, SQL Developer, MS Xcel, Flat files.

Confidential, Detroit, MI

Informatica Developer

Responsibilities:

  • Interacted with business community and gathered requirements based on changing needs. Incorporated identified factors into Informatica mappings to build Data Warehouse.
  • Participated in reviewing requirements during analyze and ensuring that sufficient details is available going into the design phase.
  • Used Informatica Power Center to create mappings, sessions and workflows for populating the data into dimension, fact, and lookup tables simultaneously from different source systems (SQL server, Oracle, Flat files).
  • Worked with Informatica Power enter-server, Repository Manager, Designer, server Manager, Informatica Server.
  • Performed customer address validation and Standardization, Enrichment, Matching, Consolidation using Informatica Data Quality IDQ and integrated with Informatica Power Centre.
  • Performed daily incremental load (CDC) all Vehicle sale, Customer update and Dealer records that are added since last run will be selected.
  • Implemented Change Data Capture CDC where Last update date greater than or equal to the last successful workflow run time and less than current workflow run time from audit table.
  • Scheduled various daily and monthly ETL loads using Tivoli Work Scheduler TWS.
  • Used transformations like Joiner, Expression, Connected and Unconnected lookups, Filter, Aggregator, Update Strategy, Rank, Sorter, Router and Sequence generator.
  • Worked with PMCMD to interact with Informatica Server from command mode and execute the shell scripts.
  • Test the Informatica mapping and workflows against the specifications on the detailed design.
  • Participate in project status meetings, peer reviews and other events with developers to get the status of the deliverables.
  • Creating and modifying existing Technical Design Specification document and other client deliverables for different releases
  • Proficient in importing/exporting large amounts of data from files to EDW and developed the DW ETL scripts using BTEQ, Stored Procedures, Macros in Teradata.
  • Created numerous scripts with Teradata utilities BTEQ, MLOAD and FLOAD.
  • Extensively worked in the Performance Tuning of the programs, ETL Procedures and processes.
  • Developed Pre-Session and Post-Session UNIX scripts to automate the data load processes to target Data warehouse.
  • Involved in writing UNIX shell scripts to run and schedule batch jobs.
  • Developed mappings to extract data from SQL Server, Oracle, Flat files and load into Data warehouse using the Mapping Designer.
  • Implemented various Performance Tuning techniques on Sources, Targets, Mappings, and Workflows.
  • Identified sources, targets, mappings and sessions and tuned them to improve performance.

Environment: Informatica Power Center 9.1/8.6, IDQ, UNIX, Perl Script, Tivoli Work Scheduler, MS Access, WinSCP, PuTTY, DB2, Toad 10.6, Oracle 11g,Teradata 12.0, SQL Assistant, SQL Server, MS Xcel, Q, Flat files, Ultra Edit, SAP.

Confidential, Tulsa, OK

ETL Developer

Responsibilities:

  • Interacted with business community and gathered requirements based on changing needs. Incorporated identified factors into Informatica mappings to build Data Warehouse.
  • Participated in reviewing requirements during analyze and ensuring that sufficient details is available going into the design phase.
  • Developed ETL Mappings using Informatica PowerCenter 9.1/8.6 involving extraction and loading of data from Flat Files and relational databases like MS SQL Server 2008 and Oracle9i.
  • Worked with Informatica PowerCenter-server, Repository Manager, Designer, server Manager, Informatica Server.
  • Used transformations like Joiner, Expression, Connected and Unconnected lookups, Filter, Aggregator, Update Strategy, Rank, Sorter, Router and Sequence generator.
  • Developed and scheduled Workflows using task developer, work let designer, and workflow designer in Workflow manager and monitored the results in Workflow monitor.
  • Test the Informatica mapping and workflows against the specifications on the detailed design.
  • Participate in project status meetings, peer reviews and other events with developers to get the status of the deliverables.
  • Creating and modifying existing Technical Design Specification document and other client deliverables for different releases.
  • Worked with business analysts to identify appropriate sources for Data Migration and to document business needs for decision support data.
  • Worked with the DBA group, SAP Functional Consultants to extract the historical data into Flat Files to build data marts in MS SQL Server database.
  • Extensively worked in the Performance Tuning of the programs, ETL Procedures and processes.
  • Developed Pre-Session and Post-Session UNIX scripts to automate the data load processes to target Data warehouse.
  • Extensively used parameter files to avoid hard-coding in mappings to facilitate possible future changes thereby saving migration times.
  • Developed mappings to extract data from SQL Server, Oracle, Flat files and load into Data warehouse using the Mapping Designer.
  • Extracted the data from MS SQL Server, applied Data Cleansing rules, Transformation rules and converted into LSMW format to load into SAP system.
  • Used Source Analyzer and Warehouse designer to import the source and target database schemas, and the Mapping Designer to map the sources to the target.
  • Defects were tracked, reviewed and analyzed.
  • Implemented various Performance Tuning techniques on Sources, Targets, Mappings, and Workflows.
  • Worked with the DBA group, SAP Functional Consultants to extract the historical data into Flat Files to build data marts in MS SQL Server database.
  • Scheduled jobs to call the packages and Stored Procedures as per business requirement
  • Worked on SQL Server Integration Services (SSIS) to integrate and analyze data from multiple heterogeneous information sources (Oracle).
  • Created packages in SSIS with error handling and worked with different methods of logging in SSIS.
  • Created SSIS Packages to move the data from tab delimited flat flies into SQL database.
  • Made dynamic SSIS packages which did data scrubbing, including data validation.
  • Monitoring the ETL production jobs and resolved the issues/bugs.
  • Used Source Analyzer and Warehouse designer to import the source and target database schemas, and the Mapping Designer to map the sources to the target.
  • Identified sources, targets, mappings and sessions and tuned them to improve performance.

Environment: Informatica PowerCenter 9.1, Work Flow Manager, Work Flow Monitor, Source Analyzer, Warehouse Designer, Transformation Designer, Mapping Designer, MS SQL Server 2008,SSIS,SSRS,SSAS, DB2, Teradata, SQL Assistant, Oracle 11g,SQL Developer, MS Xcel, Quality Center 10, Sharepoint, Flat files, UNIX Shell Scripts, ManageSoft, VMWare Client 7, PuTTY, SAP,LSMW,SAP.

Confidential, McLean, VA

Informatica Developer

Responsibilities:

  • Interacted with business community and gathered requirements based on changing needs. Incorporated identified factors into Informatica mappings to build Data Warehouse.
  • Assisted in designing Logical/Physical Data Models, forward/reverse engineering using Erwin 4.0.
  • Developed mappings to extract data from SQL Server, Oracle, Flat files, XML files, and load into Data warehouse using the Mapping Designer.
  • Used Source Analyzer and Warehouse designer to import the source and target database schemas, and the Mapping Designer to map the sources to the target.
  • Used Informatica Designer to create complex mappings using different transformations like Filter, Router, Connected & Unconnected lookups, Stored Procedure, Joiner, Update Strategy, Expressions and Aggregator transformations to pipeline data to Data Warehouse.
  • Developed Slowly Changing Dimensions for Type 1 SCD and Type 2 SCD
  • Used DTS package to import and export data to from the data base.
  • Written Queries, procedures, created Indexes, primary keys and data bases testing.
  • Defects were tracked, reviewed and analyzed.
  • Implemented various Performance Tuning techniques on Sources, Targets, Mappings, and Workflows.
  • Used Source Analyzer and Warehouse designer to import the source and target database schemas, and the Mapping Designer to map the sources to the target.
  • Identified sources, targets, mappings and sessions and tuned them to improve performance
  • Actively participated in data base testing like checking the constraints, correctness of the data, stored procedures, field size validation, etc.
  • Created UNIX shell scripting and automation of ETL processes using Crontab.
  • Monitoring the ETL production jobs and resolved the issues/bugs
  • Attended the production on call support during weekends and during production deployments.
  • Used command line mode to embed pmcmd commands in to shell scripts and used pmcmd, pmrep commands in Interactive mode to access repository and workflows.

Environment: Informatica PowerCenter 8.6, Oracle 11g,SQL Developer, Sybase, Embarcadero Rapid SQL 7.7.2,PL/SQL, Flat files, UNIX Shell Scripts, Quality Center 9.5, PuTTY, Microstrategy 8,Open Text Exceed 14, Lotus Notes 7.

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