Senior Etl/datawarehouse Developer Resume
Mineapolis, MN
PROFESSIONAL SUMMARY:
- 13 years of experience in IT as an application developer with experience in the total life cycle of Software Development Applications involving Requirements gathering, Design, Development, Testing.
- 5+ years working as a Solution Architect with depth in data integration and data architecture for Enterprise Data Warehouse implementations.
- Have 11 years of in - depth experience in Extraction Transformation and Loading (ETL) processes using IBM Infosphere Information server DataStage 11.3, 8.5, 8.0.x (Parallel Extender), Oracle, Teradata, autosys,TWS(Tivoli)Control-m.
- 2 year of experience in Data warehousing tool like Informatica 6.1 and Oracle.
- Good experience in Data Warehouse Development, Enhancement, Migration, Maintenance and Production support projects.
- 13 years of experience with retail and health care domain.
- Coordination with offshore team.
- Upgrading datastage from 8.5/8.7 to 11.3.1.2
- Worked on upgrade projects which involve migration from DataStage 8.0.1 to DataStage 11.3 version and from Oracle 10g to Teradata.
- 4 Years of experience in Agile Methodology.
- Involved in full Software Development Life Cycle (SDLC) of application software on multiple platforms including system study, analysis, design, development, unit, integration, acceptance testing and implementation.
- Extensively involved in the development of Datastage ETL process for extracting data from different data sources, data transformation and loading the data into data warehouse for data mart operations.
- Extensively worked with various Transformations using Join, Lookup, Sort, Filter, Funnel, Merge, Aggregator, Remove Duplicates, ODBC various File stage like Sequential file, datasets etc. for storing intermediate data in between the transformations.
- Experience in Designing, Testing, Scheduling and Running DataStage jobs.
- Designed Mapping documents, ETL architecture documents and specifications, analyzed the Source Data and designed the source system documentation.
- Setting up development, QA & Production environments. Migrated jobs from development to QA to Production environments.
- Good Experience with Version Controls like Cvs.
- Proven track record in troubleshooting of DataStage jobs and addressing production issues like performance tuning and enhancement.
- Developed Datastage jobs in Server and Mainframe environment.
- Worked and extracted data from various database sources like Oracle 10/9i/8i/8.x/7.x, DB2, Sequential files and Flat files.
- Strong working knowledge with Oracle database Design and Teradata.
- Experienced in UNIX Shell scripting (Korn, BASH, and CSH) as part of file manipulation, Scheduling and text processing.
- Excellent analytical, communication and interpersonal skills. Versatile team player with proven problem solving skills and the ability to interact with individuals at all levels.
- Monitoring daily ETL jobs and taking actions based on failures.
- Support prod and non-prod jobs based on tickets and priority
- Knowledge on QualityStage.
TECHNICAL SKILLS:
Tools : DataStage EE 7.5.2, IBM Information Server 8.0.x and 11.3,Informatica 6.1
Databases : Oracle 10g/11g, Teradata 12,
Languages : UNIX Shell Scripting , SQL, PL/SQL
Tools/ Utilities : Erwin, SQL Developer, TOAD, Mercury Quality Center
Job Schedulers : Autosys 4.5, Cron, IBM Tivoli
Version control : WinCvs, 0020SVN Tortoise version control
Operating Systems : Linux, Windows XP/2000/NT/98, AIX, Unix (Sun Solaris, HP/UX)
PROFESSIONAL EXPERIENCE:
Confidential, Mineapolis, MN
Senior ETL/Datawarehouse Developer
Responsibilities:
- Experience in Requirements Engineering, Solution Architecture, Design, Development and Deployment
- Roadmaps Experience in designing and implementing the data architecture (conceptual, logical, physical & dimensional models).
- experience in hardware, software, systems and solutions development and a across more than one technical domain.
- Experience in relational and dimensional data modeling and database design.
- Experience in ERwin tool.
- Analyses, design, develop and test the ETL applications using DataStage and Oracle.
- Analyze and enhance existing applications, problem solving and root cause analysis.
- Translate business requirements into integration specifications.
- Software development, code walkthrough, test, deployment and supporting the jobs.
- Test and debug the application to ensure compliance with project specification.
- Working with ETL developers to oversee the implementation of ETL designs.
- Working on processing the load cycles to have the test data ready for SIT and UAT
- Working with the technical and data architect group to make sure jobs are developed as per the standards used
- Standard complex data conversion to flat file using datastae
- Datastage upgrade from 8.5 to 11.3
- Unix scripting for batch process, file validations, monitor scripts
- Following the DataStage job standards to not use the datasets in the process instead use the temporary tables for processing.
- Coordination with offshore team.
- he is involved in day to day production activities to load data into two environment Oracle and sql server, logging defects in HPSM, production job failure fixes within service level agreement, data analysis of production data issues and fixes, prioritize end user requests, assigning tasks to offshore team member and delivery the tasks as per schedule and well versed in onsite-offshore model.
- His assignments include working with business team and gathering requirements, analyze upstream sources for changes and impact, provide technical solutions, Design, Develop, Test, and Implement changes. Post load validation support, participate in internal audits. he is most experienced on this project and has been engaged as the project technical lead for this project. Analyze the data source systems and business requirements, and prepare functional requirement and design high-level and low level technical designs. he is also involved in performance improvement to reduce load cycle and successfully .
- he has reduced total number of defects from 50 to less than 12 tickets per month.
- he is managing off-shore team engaged in building the application based on the user requirements and track change requests raised by Business and end user of the project, incorporate them into the existing phases of the project. Manage and track of deliverables as per PMO guidelines, provide monthly governance report and weekly PMO status report. Identifying and managing data quality issues and oversees configuration, administration, and monitoring of data warehouse processes, scheduling and ETL data loading and server resources.
- he is responsible for designing the technical solutions for an ETL Data Stage environment, performance improvements using parallel technology and multi-instance modes,maintain and report of QA activities in HPSM, create and execute processes via ITG, Create and maintain HPSM tickets for all enhancements, break fix tasks and to handle job failures, deploy changes to TWS, integrate new changes to DeCIDE tool, validate source system data using TOAD, SQL Plus and profiling the data. Create Unix scripts for data cleansing, passing job level parameters, sending automated emails. Execute scripts to monitor server bottlenecks and report performance issues to management. Develop productivity tools in UNIX for user data and project data archive/restore automation as per legal and audit needs.
- he is involved in reviewing the production tickets each month and creating preventive measures to avoid recurring tickets in future. he is involved in overseeing all the process and procedures to confine with quality audit requirement.
Environment: IBM Web Sphere DataStage 11.3, Oracle 10g, PL/SQL, SQL * Plus, UNIX Shell Scripts, TOAD, Convert EDI Formats (HL7, sql server,TWS, sql server, pentaho 5.0, Agile Methodology.
Confidential, Mineapolis, MN
Senior ETL/Datawarehouse Developer
Responsibilities:
- Experience in Requirements Engineering, Solution Architecture, Design, Development and Deployment
- Roadmaps Experience in designing and implementing the data architecture (conceptual, logical, physical & dimensional models).
- experience in hardware, software, systems and solutions development and a across more than one technical domain.
- Experience in relational and dimensional data modeling and database design.
- Experience in ERwin tool.
- Strong working experience in the data analysis, SQL design and development, implementation and testing of data warehousing using extraction, transformation and loading (ETL) Tools and Teradata.
- Expertise in Teradata table data manipulation using SQL queries and UNIX commands/UNIX scripts.
- Expertise in Teradata Tools & Utilities - Teradata parallel transformer using the load operator, update operator and stream operator, Fastload, Multiload, Fastexport, BTEQ
- Expertise in Datamart analysis and Optimization Techniques in the Teradata Datamart
- Responsible for analysis of existing application process and prepare the data stage design document and develop the data stage jobs based on functional specification document.
- Responsible to construct the ETL Development using Data Stage Enterprise Edition
- Involved in Analysis, Design and Development of End - End Data Warehousing Solutions
- Involved in Integration Testing, Preparation of Test Cases and Test Data
- Have Experience with development of Low Level Design and Tech Specification Document.
- Involved in staging and loading process.
- Coordination with offshore team.
Environment: IBM Web Sphere DataStage 8.5, Oracle 9i to Teradata V13.0, PL/SQL, SQL * Plus, UNIX Shell Scripts, TOAD, Autosys.
Confidential
Senior ETL/Datawarehouse Developer
Responsibilities:
- Responsible for analysis of existing application process and prepare the data stage design document and develop the data stage jobs based on functional specification document.
- Responsible to construct the ETL Development using Data Stage Enterprise Edition
- Involved in Analysis, Design and Development of End - End Data Warehousing Solutions
- Involved in Integration Testing, Preparation of Test Cases and Test Data
- Have Experience with development of Low Level Design and Tech Specification Document.
- Involved in staging and loading process.
Environment: IBM Web Sphere DataStage 7.5, Oracle 9i, PL/SQL, SQL * Plus, UNIX Shell Scripts, TOAD, Autosys.
Confidential
ETL Developer
Responsibilities:
- Responsible for analysis of existing Server Data stage,Syncsort & Cosort code and extracts the logic and prepare the data stage design document and develop the data stage jobs
- Responsible to construct the ETL Development using Data Stage Enterprise Edition
- Involved in Analysis, Design and Development of End - End Data Warehousing Solutions
- Involved in Integration Testing , Preparation of Test Cases and Test Data
- Have Experience with development of Low Level Design and Tech Specification Document.
Environment: DataStage 7.5, Oracle 9i, PL/SQL, SQL * Plus, UNIX Shell Scripts, TOAD , Autosys.
Confidential
ETL Developer
Responsibilities:
- Responsible for their entire ETL development using DATASTAGE Version 7.5.1A.
- Designing in Technical Specifications & Low Level Design Documents.
- Perform job classification and subsequently assign the tasks accordingly.
- Preparing Test cases, Test data for testing the Data quality checks and Data stage code preprocessing.
Environment: DataStage 7.5, Oracle 9i, PL/SQL, SQL * Plus, UNIX Shell Scripts, TOAD , Autosys.
Confidential
ETL Developer
Responsibilities:
- Responsible for their entire ETL development using DATASTAGE Version 7.5.1A.
- Designing in Technical Flow Diagrams & Technical Design Documents.
- Developed Jobs according to the FD requirement & constructing shared containers.
- Used Job control and Job Sequencer to run the jobs by using parameters.
- Performing Unit Testing using the Gap standard Templates.
Environment: DataStage 7.5, Oracle 9i, PL/SQL, SQL * Plus, UNIX Shell Scripts, TOAD , Autosys.
Confidential
ETL Developer
Responsibilities:
- Designed the ETL process using Informatica tool to load data from source to target Oracle Database.
- Developed mapping and sessions using Informatica power center for data loading.
- Developed mapping to load the data in slowly changing dimension.
- Created various Transformations like Joiner, Aggregate, Expression, Filter, Update Strategy, and Lookup.
- Involved in Unit Testing.
Environment: Informatica 6.1, ORACLE 8i, Windows 2000.
