Sr. Etl Qa Tester Resume
Glen Allen, VA
SUMMARY
- Over 7+years of Professional Experience in Software Quality Assurance, Data Analysis and Testing in different environments and platforms.
- Well versed with various types Software Development methodologies - Waterfall, Agile, RUP, Iterative and Extreme Programming.
- Extensive experience in reviewing Business Requirement Documents, Software Requirement Documents and preparing Test Cases, Test scripts and Execution.
- Experienced in DW projects ETL testing against DW testing with Informatica, Ab Initio and data stage tools.
- Good Knowledge on Business intelligence, OLAP, Dimensional modeling, Star and Snowflake schema, extraction, transformation and loading (ETL) process
- Strong technical Knowledge of UNIX Utilities, Shell Script to automate process.
- Ability to develop complicated SQL script for Data validation testing by running SQL script, procedures.
- Experience in data retrieval methods using Universes, Personal Data files, Stored Procedures, and free hand SQL. Automated and scheduled teh Ab initio jobs using UNIX Shell Scripting.
- Proficient in SQL, PERL, Shell Scripting and PL/SQL coding and experience in Performance Tuning of SQL.
- Autosys scheduling jobs
- Experience in testing Business Report developed in Cognos
- Experience in Black box testing with a complete QA cycle - from testing, defect logging and verification of fixed bugs
- Extensive experience in Functional testing, Integration/System testing, Regression testing and User Acceptance testing.
- Well versed in GUI application testing, Database testing and Front-end testing.
TECHNICAL SKILLS
Data Warehousing: Informatica 8.6.1/8.1/7.1/6/5.1.1/1.75 , Data Stage 8.x, Ab Initio
Reporting Tools: Business Objects 6.5/XIR3, Cognos 8.0 Suite, Crystal Reports, SSAS, SSRS
Data Modeling: Star-Schema Modeling, Snowflake-Schema Modeling, FACT and dimension tables, Pivot Tables, Erwin
Testing Tools: Win Runner, Load Runner, Test Director, HP Quality Center, Rational Tools
RDBMS: Oracle 11g/10g/9i/8i/7.x, MS SQL Server 2005/2008, UDB DB2, Sybase, Teradata V2R6, MS Access 2008
Programming: UNIX Shell Scripting, SQL, SQL*Plus, PL/SQL,C++
Web Technologies: JavaScript, HTML 4.0, and DHTML, .NET, Java, J2EE, XML, XSD, XSLT
Environment: UNIX, MVS, HP-UX, IBM AIX 4.2/4.3, Hyperion, Novell NetWare, Win 3.x/95/98, NT 4.0, Sun-Ultra, Sun-Spark, Sun Classic, and SCO
PROFESSIONAL EXPERIENCE
Confidential, Glen Allen, VA
Sr. ETL QA Tester
Responsibilities:
- Analyzed business requirements, system requirements, data mapping requirement specifications, solution specs and responsible for documenting functional requirements.
- Created test data for testing specific ETL flow.
- Performed data analysis and data profiling using SQL and Ab initio on various sources systems including Oracle and Teradata.
- Assisted in creating fact and dimension and star schema table implementation based on requirements
- Used PERL for automating all teh types of modules at a time.
- Tested and developed teh mapping for extracting, cleansing, transforming, integrating, and loading data using Ab inito.
- Created expected results for data based on mapping document and used SQL, Ab initio and crated compare reports for source to target.
- Worked on Ab initio to resolve production issues perform testing and debugging of graphs.
- Extraction of test data from tables and loading of data into SQL tables.
- Responsible for Data mapping testing by writing complex SQL Queries.
- Experience in creating UNIX scripts for file transfer and file manipulation.
- Validating teh data passed to downstream systems.
- Worked with data validation, constraints, source to target row counts.
- Developed automated Test Scripts.
- Used data conversion to protect teh data and prevent data loss.
- Strong in writing SQL queries and makes table queries to profile and analyze teh data.
- Formulate methods to perform Positive and Negative testing against requirements.
- Performed Verification, Validation, and Transformations on teh Input data (Text files, XML files) before loading into target database.
- Perform Functional, Data Validation, Integration, regression and User Acceptance testing.
- Used TOAD, SQL Server tools to connect to Oracle Database to validate data that was populated by ETL applications
- Involved in testing Unix Korn Shell wrappers to run various ETL Scripts to load teh data into Target Database (Oracle).
- Debug autosys jils, executed jobs to load test data. Check autosys and ab inito logs for failed jobs and report errors.
- Worked on Clear Quest to log defects and track resolution and communicated to teh developers using defect tracking tool till teh closing of defect after retesting.
- Created test cases and executed test scripts using Quality Center.
- Used Microsoft Excel and Word 2003 to document test status reports and teh Test Data.
- Perform Functional, Data Validation, Integration, regression and User Acceptance testing with large volume of data sets.
Environment: Ab initio, Oracle 11g, Autosys, Java, PERL, Teradata, UNIX, HP Quality Center 11.0
Confidential, Charlotte NC
Sr.ETL QA Tester
Responsibilities:
- Created test data for testing specific ETL flow.
- Performed data analysis and data profiling using SQL and Informatica Data Explorer on various sources systems including Oracle and Teradata.
- Extracted certain column of data from a number to files using PERL.
- Worked on informatica to resolve production issues perform testing and debugging of mappings and reports Extraction of test data from tables and loading of data into SQL tables.
- Responsible for Data mapping testing by writing complex SQL Queries using WINSQL.
- Experience in creating UNIX scripts for file transfer and file manipulation.
- Validating teh data passed to downstream systems.
- Worked with data validation, constraints, source to target row counts.
- Used data conversion to protect teh data and prevent data loss.
- Strong in writing SQL queries and makes table queries to profile and analyze teh data in MS Access.
- Formulate methods to perform Positive and Negative testing against requirements.
- Performed Manual Testing of teh application Front-End and Functionality. Identified teh critical test scripts to be automated.
- Performed Verification, Validation, and Transformations on teh Input data (Text files, XML files) before loading into target database.
- Monitored teh Informatica workflows using Power Center monitor. Checked session logs in case of aborted/failed sessions
- Used TOAD, SQL Developer tools to connect to Oracle Database to validate data that was populated by ETL applications
- Involved in testing Unix Korn Shell wrappers to run various ETL Scripts to load teh data into Target Database (Oracle).
- Worked on Clear Quest to log defects and track resolution till teh closing of defect after retesting.
- Created test cases and executed test scripts using Quality Center.
- Used Microsoft excel and Word 2003 to document teh test status reports and teh Test Data.
- Used Quality Center to track and report system defects.
Environment: Informatica 8.6, Informix, DB2, Java, Business Objects XIR2/6.5, SQL, SQL Server 2000/2005, Teradata UNIX, HP Quality Center 10.0
Confidential, Orange County, CA
ETL QA Tester
Responsibilities:
- Analyzed business requirements, system requirements, data mapping requirement specifications, and responsible for documenting functional requirements and supplementary requirements in Quality Center 9.2
- Tested ETL jobs as per business rules using ETL design document
- Assisted in creating fact and dimension table implementation in Star Schema model based on requirements.
- Expert in writing Complex SQL/PLSQL Scripts in querying Teradata and Oracle.
- Defined data requirements and elements used in XML transactions.
- Involved in teh testing of Data Mart using Power Center.
- Identified and Documented additional data cleansing needs and consistent error patterns that could diverted by modifying ETL code.
- Involved in Preparing Test Plan for Med Pharmacy Claims to FACETS
- Developed Test Cases bases on Functional Specifications and Design Documents for Med Pharmacy Claims to FACETS
- Followed teh Mapping documents and HIPAA implementation guides for HIPAA Transaction Mapping
- Involved in processing claims in FACETS and validating teh full cycle process to make sure teh checks are generated and 835’s are generated.
- Extensively used Informatica Power Center for Extraction, Transformation and Loading process.
- Extensively tested several ETL Mappings developed using Informatica.
- Extensively used Teradata load utilities Fast load, Multiload and FastExport to extract, transform and load teh Teradata data warehouse
- Tested complex objects to teh universe to enhance teh report functionality.
- Tested ad hoc and canned reports for Business objects.
- Tested Business Objects reports and Web Intelligence reports
- Worked in an Agile technology with Scrum.
- Responsible for different Data mapping activities from Source systems to Teradata.
- Queried Teradata Database and validated teh data using SQL Assistant.
- Effectively distributed responsibilities, arranged meetings and communicated with team members in all phases of teh project.
- Used import and export facilities of teh application to download/upload XMLs of failed test cases so as to re-verify.
- Scheduled teh jobs using Autosys and automated teh jobs to be ran at specific time and automated teh reports.
- Writing UNIX scripts to perform certain tasks and assisting developers with problems and SQL optimization.
- Converted SQL queries results into PERL variable and parsed teh same for multiple reasons.
- Wrote complex SQL queries using joins, sub queries and correlated sub queries
- Performed Unit testing and System Integration testing by developing and documenting test cases in Quality Center.
- Did Unit testing for all reports and packages.
- Designed and developed UNIX shell scripts as part of teh ETL process, automate teh process of loading, pulling teh data.
- Involved in extensive DATA validation using SQL queries and back-end testing.
- Used Query Studio to test ad hoc reports
- Responsible for migrating teh code changes from development environment to SIT, UAT and Production environments.
- Validated cube and query data from teh reporting system back to teh source system.
- Tested analytical reports using Analysis Studio.
Environment: Informatica 8.6,Erwin 4.0, DTS, MS SQL Server 2008, Oracle 10g, Teradata SQL Assistant, Business Objects XIR2/6.5, COBOL, QTP 9.0, HP Quality Center 10, UTL FILE, TSO, ISPF, OS/z, JCL, Mainframes, Toad, Unix Shell Scripting, Windows XP/2000
Confidential, Farmingdale, NY
QA Tester
Responsibilities:
- Assisted in creating fact and dimension table implementation in Star Schema model based on requirements.
- Develop test plans based on test strategy. Created and executed test cases based on test strategy and test plans based on ETL Mapping document.
- Wrote complex SQL queries for querying data against different databases for data verification process.
- Designed teh data flow diagrams using MS VISIO.
- Prepared teh Test Plan and Testing Strategies for Data Warehousing Application.
- Preparation of technical specifications and Source to Target mappings.
- Extensively used SQL programming in backend and front-end functions, procedures, packages to implement business rules and security
- Followed teh Mapping documents and HIPAA implementation guides for HIPAA Transaction Mapping.
- Involved in testing HIPAA EDI Transactions and mainly focused on 837 and 835.
- Involved in Data mapping to/from legacy to Facets that will be used to populate teh oracle database
- Involved in testing HIPAA EDI Transactions and mainly focused on 837 and 835
- Used Foresight Desktop Validator for HIPAA IG validation.
- Written test cases to test teh application manually in Quality Center and automated using Quick Test Pro.
- Worked with SSIS system variable, passing variables between packages.
- Created cascading prompts at teh universe level. These cascading prompts were used within full client and thin client reports to narrow down teh selection parameters.
- Tested different types of reports, like Master/Detail, Cross Tab and Charts (for trend analysis).
- Developed automated test scripts from manual test cases for Regression testing based on teh requirement documents using Quick Test Professional.
- Written Test Plans and Test Cases on Mercury’s Test Director Tool.
- Developed scripts, utilities, simulators, data sets and other programmatic test tools as required executing test plans.
- Tested a number of complex ETL mappings, mapplets and reusable transformations for daily data loads.
- Designed and supported SQL 2000 Reporting services, Integration services and Analysis services.
- Creating test cases for ETL mappings and design documents for production support.
- Setting up, monitoring and using Job Control System in Development/QA/Prod.
- Extensively worked with flat files and excel sheet data sources. Wrote scripts to convert excel to flat files.
- Scheduling and automating jobs to be run in a batch process.
- Effectively communicate testing activities and findings in oral and written formats.
- Reported bugs and tracked defects using Test Director 6.5
- Extensively used Informatica power center for Extraction, Transformation and Loading process (ETL).
- Worked with ETL group for understating mappings for dimensions and facts.
- Extracted data from various sources like Oracle, flat files and SQL Server.
- Worked on issues with migration from development to testing.
- Extensively tested several Cognos reports for data quality, fonts, headers & cosmetic.
- Compared teh actual result with expected results. Validated teh data by reverse engineering methodology i.e. backward navigation from target to source.
Environment: SAS/Base 8.1, SAS/Macros, SAS/ETL, PERL, UNIX Shell Scripting, Informatica Power Center 7.1 (Power Center Designer, workflow manager, workflow monitor), QTP 7.2, SQL *Loader, Cognos 7.0, Oracle8i, SQL Server 2000, Erwin 3.5, Windows 2000, TOAD 7, Business Objects 6.1, Teradata V2R4