Etl Sr - Developer Resume
Mclean, VA
SUMMARY
- 11+ years of experience IT Industry in various areas like Application Development, Enhancement, Maintenance and Support, Application Management & Implementation
- Strong data warehousing ETL experience using Informatica 9.6/9.1/8.6 Power Center client tool.
- Extensively worked on Informatica PowerCenter Transformations such as Source Qualifier, Lookup, Filter, Expression, Router, Normalize, Joiner, Update Strategy, Rank, Aggregator, Stored Procedure, Sorter, Sequence Generator, XML Transformations.
- Worked with different data sources such asOracle,SQL Server,DB2,SAP,Flat files,HDFS.
- Having good experience in writing UNIX script, AUTOSYS JILs.
- Experience in project estimation and onsite, offshore team management.
- Strong experience in the analysis, design, development, testing and implementation of Business Intelligence solutions using Data Warehouse.
- Experienced in performance tuning of mappings, sessions and workflows including partitioning.
- Involved in full life cycle development of Data Warehousing.
- Excellent understanding of Star Schema, Snowflake modeling. Fact, Lookup and Dimensions Tables.
- Excellent skills in understanding business needs and converting them into technical solutions.
- Good exposure in Informatica MDM.
- Exposure on Hadoop ecosystems, HDFS, Big Data, HIVE, MR, SQOOP and RDBMS.
- Extensive experience in developing Stored Procedures, Functions, Views and Triggers, Complex SQL queries using SQL Server and Oracle PL/SQL.
- Good exposure in project estimation, preparing BRD, FRD, Technical specs, project documentation.
- Very good domain experience in Banking AML applications, Healthcare and Aviation Domains.
- Good experience in handling AML/FRAUD applications like ACTIMIZE, CASE MANAGEMENT tools, etc.
- Good exposure in handling vendors in multiple projects with cross platform technologies like Informatica, MS.NET, OBIEE, UNIX, Mainframe - DB2 etc.
- Good experience in Job scheduling tools like CA7, Autosys, Tivoli.
- Good experience in ITIL Process.
- Good experience in change management, incident management and problem management methodologies and also part of CAB team defining the process as per ITIL methodologies.
- Good experience in defining the new process as per business requirement to support the applications.
TECHNICAL SKILLS
DW Tools: Informatica Power Centre 7x and 8x, 9x, OBIEE
DataModeling Tools: ERWin, TOAD Data Modler
BigData: Hadoop, HIVE, SQOOP, MR
RDBMS: Oracle, DB2, SQL Server, Ms-Access
Programming Languages: C#.NET, UNIX Shell Script, Batch Script
Scheduling Tools: CA7, AUTOSYS, TIVOLI
Operating Systems: Windows NT/2000/XP, MS-DOS, UNIX
Tools: & Utilities: PUTTY, VSS, Service Center 6.2, SM9, HPSA, Service Now
Web Related: ASP.Net, HTML, XML
Server: WAS, IIS, MOSS
PROFESSIONAL EXPERIENCE
Confidential, McLean, VA
ETL Sr - Developer
Environment: Informatica-9.6, UNIX,AUTOSY,ORACLE,SQL SERVER-2008,FlatFiles,DB2
Responsibilities:
- Involved in analysis, LLD, HLD and documentation of mapping specs as per business rules.
- Creating inforamatica mappings as per business requirements. developing SCD type 2, type 1 mappings using informatica.
- Prepare test strategy and Test Directories
- Developed UNIX scripts to handle source files.
- Developed AUTOSYS JIL scripts to manage informatica workflow jobs
- Performed UNIT Testing on developed mappings
- Extensively used CDC on real time data.
- Extensively used Sql server Database from source and target.
- Participate in review of test document for the end-to-end testing
- Prepare project status reports for the work carried out
- Collect and reporting metrics on end-to-end testing.
- Involved in low-level design and developed various jobs and performed data loads and transformations using different transformation of INFORMATICA.
- Experienced in ETL auditing process.
- Used most of the transformations such as Source Qualifier, Filter, Joiner, Sequence Generator, Expression, Aggregator, Connected & Dynamic Lookup, Rank, Router, and Update Strategy, SQL Transformation, etc.
- Scheduled the Informatica Workflows as per user requirement by using AUTOSYS scheduling tool.
- Performance tuning has been done to increase the through put for both mapping and session level and SQL Queries Optimization as well.
- Experienced in deploying the code into releasing folder and placing it into Build and troubleshooting the build issues.
- Involved in unit testing to test the processed data and user acceptance testing.
- Experienced in troubleshooting and fix the different Development/Production environment issues.
- Involved in environment creation of metadata manager.
- Involved in recycle Repository, integration services and creation of automated scripts for deployment using pmrep command.
- Involved in Workflow, Mapping deployment by using deployment group from Dev to UAT and UAT to Quality and production Repositories.
- Experienced in writing Uniting Test Cases with multiple scenarios.
ETL Technical Lead
Environment: Informatica-9.6, OBIEE, Oracle11g,ERWin, TOAD Data Modeler, UNIX, Mainframe-DB2, MS.Net, WAS, HDFS
Responsibilities:
- Involved in analysis, LLD, HLD and documentation of mapping specs as per business rules.
- Involve in understanding test requirements
- Prepare test strategy and Test Directories
- Participate in test case development and execution
- Participate in test results document preparation for the project
- Participate in bug reporting and tracking for the project
- Performed ETL data loading into OBIEE Environment.
- Loading the data into HIVE
- Extensively used CDC on real time data.
- Extensively used Sql server Database from source and target.
- Participate in review of test document for the end-to-end testing
- Prepare project status reports for the work carried out
- Collect and reporting metrics on end-to-end testing.
- Involved in low-level design and developed various jobs and performed data loads and transformations using different transformation of INFORMATICA.
- Experienced in ETL auditing process.
- Used most of the transformations such as Source Qualifier, Filter, Joiner, Sequence Generator, Expression, Aggregator, Connected & Dynamic Lookup, Rank, Router, and Update Strategy, SQL Transformation, etc.
- Scheduled the Informatica Workflows as per user requirement by using AUTOSYS scheduling tool.
- Performance tuning has been done to increase the through put for both mapping and session level and SQL Queries Optimization as well.
- Experienced in deploying the code into releasing folder and placing it into Build and troubleshooting the build issues.
- Involved in unit testing to test the processed data and user acceptance testing.
- Experienced in troubleshooting and fix the different Development/Production environment issues.
- Involved in environment creation of metadata manager.
- Involved in recycle Repository, integration services and creation of automated scripts for deployment using pmrep command.
- Involved in Workflow, Mapping deployment by using deployment group from Dev to UAT and UAT to Quality and production Repositories.
- Experienced in writing Uniting Test Cases with multiple scenarios.
Confidential
Sr. Analyst
Environment: Informatica-9.1,Hadoop-hiave,sqoop,Oracle11g,UNIX,DB2,OBIEE 11g, ERWin
Responsibilities:
- Involved in gathering and analyzing requirements, prepared Technical Design document and Source - Target Mapping docs and presented to BU team to finalize and get sign off
- Worked on project plan to define the efforts and estimations tasks.
- Designed and Developed the Batch and Incremental ETL process i.e., Mappings &Mapplets using various Transformations and Workflows with Sessions / Tasks.
- Worked as a Senior ETL Lead for onsite/offshore model and leading a team
- Participate in test results document preparation for the project
- Participate in bug reporting and tracking for the project
- Technical consultant for the team to provide optimal solutions, design reviews, code reviews and for any issues
- Provided inputs to Project Stakeholders and Data Architects to accomplish the design of the project
- Conducted design and review meetings to get design approval from different stake holders in the project
- Involved in planning, effort tracking and estimations for the project
- Extensively used Sql server Database from source and target.
- Participate in review of test document for the end-to-end testing
- Prepare project status reports for the work carried out
- Collect and reporting metrics on end-to-end testing.
- Scheduled the Informatica Workflows using CA7 scheduler tool
- Performance tuning has been done to increase the through put for both mapping and session level and SQL Queries Optimization as well.
- Experienced in deploying the code into releasing folder and placing it into Build and troubleshooting the build issues.
Confidential
Environment: Informatica8.6,OBIEE,MS.NET, DB2, Oracle10g, UNIX, Detica Front end
Responsibilities:
- Requirement gathering for enhancements.
- Review HLD & LLD documents based on business requirements.
- Supported AML investigation requirements.
- Conducted monitoring of AML exception reports.
- Developing mappings, workflows as per the requirement.
- Handling High priority and criticality incidents.
- Handling work requests and project requests.
- Provided backup liaison with business and IT.
- Understanding the functionality of the application from the business prospective.
- Monitoring and maintaining the scheduled jobs.
- Providing 24x7 support.
- Resolving the issues within the SLA time to avoid business loss.
- Managing critical recovery call.
Confidential
Informatica - Team member
Environment: Informatica Power Center 8.6, SAP-ABAP, SQL, Oracle9i, UNIX, TOAD, PUTTY, EDIT PLUS, HPSD 4.5
Responsibilities:
- Understanding the Business rules completely and implemented data transformation methodologies, Involved in designing the E.T.L mapping documents.
- Involved in the mapping with a slowly changing dimension Type2 to keep track of historical data.
- Involved in developing Mapplets, Mappings and Transformations as per the requirements.
- Extracting data from different relational databases, Flat files using Informatica Power Center.
- Analyzing the issues and resolve with the scheduled time to avoid SLC.
- Creating Various Transformations like Interpreter, Preparer, Expression, Aggregator, Rank, Joiner, Sequence Generator, Lookup, and Update Strategy etc.
Confidential
Informatica-Developer
Environment: Informatica Power center 8.1, SQL Server 2005, UNIX, PUTTY, Service Center 6.5
Responsibilities:
- Understanding the Business rules completely and implementing data transformation methodologies Involved in designing the E.T.L mapping documents.
- Involved developing Mapplets, Mappings and
- Extracting data from different relational databases, Flat files using Informatica Power Center.
- Creating Various Transformations like Expression, Aggregator, Rank, Joiner, Sequence Generator, Lookup, and Update Strategy, etc.
Confidential
Team Member
Environment: Informatica Power Center 8.1, Oracle 8i, Unix, Putty, Toad
Responsibilities:
- Analyzed the existing OLTP system.
- Transforming existing data from Source database to Target database (Oracle).
- Performed data cleansing and transformation using Informatica.
- Developed Mapplets, Mappings and Transformations.
- Scheduled sessions to update the target data using Informatica Workflow Manager.
Confidential
Team Member
Environment: ASP.Net, C#.Net, Server-2000, Tools: SQL Profiler; O/s: Windows-2000
Responsibilities:
- Involved in developing the business logic layer and design the presentation layer.
- Involved in Application maintenance and enhancement.
- Involved in preparing the test cases and test scripts.
- Testing - unit testing
- Representing Weekly & Monthly Client meetings from Offshore.
Confidential
Team Member
Environment: Asp.Net 2.0, C#.Net, Sql Server - 2000, VSS, HTML
Responsibilities:
- Involved in requirement gathering and preparing the document
- Developing the Application Layer and Business logic layer.
- Interaction with the client
- Testing - unit testing