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Senior Informatica Developer Resume Example

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SENIOR INFORMATICA DEVELOPER
Summary
  • 9+ years of experience in Software Design, Development, Analysis, Testing, Data Warehouse and Business Intelligence tools.
  • 5+ years of experience in Data Warehousing using various ETL tools primarily Informatica.
  • Experience in Informatica Integration Cloud Service to integrate on prem database with Salesforce cloud system.
  • Experience in Informatica Developer toll to create or parse EDI files using Libraries.
  • 2 years of Experience on Oracle Warehouse Builder 10g R2
  • Extensive knowledge with Dimensional Data modeling, Star Schema/snowflakes schema, process mapping using the top-down and bottom-up approaches, Fact and Dimension tables.
  • Experience on various development platforms Windows NT 4.0/2000/xp/9 and RDBMS and Master data management with Oracle 18c/12c/11g/10g /9i/8i, SQL Server, DB2.
  • Experience working with SDLC, RUP, Waterfall and Agile methodologies
  • Experience in working with data warehouses and data marts using Informatica Powercenter 10.4,10.0,9.x, 8.x, 7.x (Designer, Repository Manager, Workflow Manager, and Workflow Monitor).
  • Experience in working with OWB (Oracle warehouse builder).
  • Experience in working with Vertica database and Vertica tool.
  • Experience developing Complex mappings using various transformations available in Mappings Designer also in setting up groups/users/permissions for Informatica users in Repository Manager.
  • Experience with Type 1, Type2, Type3 Dimensions
  • Experience with slowly changing dimension methodology and slowly growing targets methodologies.
  • Solid experience with Database migration and data cleansing
  • Experience with writing and executing test cases for data transformations in Informatica.
  • Heavy experience in working with COBOL files, XML, and Flat Files
  • Expert in Oracle development (PL/SQL, Forms, Reports)
  • Experience in performance tuning of large warehouse jobs (Database level fine tuning, Sql optimization, Workflow/session/mapping optimizations).
  • Extensive experience with Unix/Linux environments and writing UNIX shell scripts
  • Ability to prioritize and execute tasks in a high pressure environment
  • Experience in mentoring and providing knowledge transfer to team members, support teams and customers.
  • Comprehensive problem solving abilities with an ability to deal with people diplomatically, Willingness to learn, team facilitator, quick learner and a hard worker with a positive attitude.
Skills
  • Oracle, SQL Server, XML, MS access, DB2
  • Informatica Power Center, Informatica B2B, Informatica Integration Cloud Service
  • SQL, PL/SQL, MY SQL, C, C++, VB script, XML, HTML, UNIX Shell Scripting, C# .net
  • Salesforce and Cloud Data Integration Patterns
  • Windows, Linux distributions, UNIX
  • Relational databases, Analysis and modeling
  • Agile and Waterfall methodologies
Experience
Senior Informatica Developer / Cox Communications Inc - Hutchinson , KS05/2017 - Current

Unique Project Achievements: Salesforce Data Integration

  • Oversaw deployment, configuration and documentation procedures of Salesforce Data Integration using Informatica Cloud and Power Center.
  • Design the Patterns to load data from Oracle DB into Salesforce using IICS.
  • Created Reusable Mappings and Templates to use Salesforce different types of Bulk or Standard Batch Loads features.
  • Used Mapping and Synchronization Tasks based on use cases to support agile business process.
  • Used Informatica Developer Tool to create JSON files and use webservice transformation to call different webservices to load data into vendor system.

Unique Project Achievements: B2B for EDI Files

  • Review the Companion Guide and functional requirement to create the technical specifications Document for overall ETL/Informatica process.
  • Worked on process to generate 834 EDI file from relational database using B2B HIX Libraries.
  • Involved in impact analysis of 837R transaction sets. and worked with claim data.
  • Created several mappings to load the other files from the external vendor into the data warehouse.

Other Common ETL/Informatica Tasks:

  • Participated in requirement gathering, identified integration points, created verification documents such as high level and low-level documents.
  • Participated in daily stand-ups for status updates and knowledge transfer with both Offshore and On-site teams.
  • Follow agile methodology and Scrum and was involved in ETL design and participated in technical meetings, Effort estimations, backlog grooming etc.
  • Designed Oracle Data Integrator ETL processes to collect and summarize data for reporting.
  • Developed Informatica mappings using various transformations like update strategy, lookup, stored procedure, router, filter,sequence generator, joiner, aggregate, and expression transformations in extracting data in compliance with the business logic developed.
  • Experience in using Informatica Workflow Manager and Workflow Monitor to schedule and monitor session status.
  • Developed complex mappings also involving SCD Type-I, Type-II and Type III mappings in Informatica to load the data from various sources.
  • Performed extensive Unit testing and worked with testers in testing support and User acceptance testing of the developed codes.
  • Analyzed the session and error logs for troubleshooting Data mappings and sessions.
  • Implemented efficient and effective performance tuning procedures. created and validated different store procedures or PL-SQL queries for performance tuning. Used explanation plan to improve performance of SQL.
  • Extensively used the Informatica Debugger for debugging the Mappings to check the Business rules implemented correctly or not.
  • Worked on shell scripts to create different scripts as per requirements.
ETL Developer / Salient Crgt - Houston , TX01/2014 - 05/2017
  • Implemented various projects/interfaces to production, like Shared Health Product, ORS, Datametrix, MV3, MV25, E Comm.
  • Provider and Accumulator Claims warehouse built.
  • Analyzed the requirements and framed the business logic for the ETL process.
  • Assisted in the creation and implementation of the business rules via stored procedures & database package.
  • Used different Transformations like Lookup, Joiner, Rank and Source Qualifier Transformations in the Informatica Designer.
  • Created complex mappings using Unconnected Lookup, Sorter, Aggregator, newly changed dynamic Lookup and Router transformations for populating target table in efficient manner.
  • Write the ETL specification, create oracle procedure, Create mappings Using OWB 10gr2 to load data from multiple sources into the staging area.
  • Written long SQL blocks for vertica database.
  • Created Process flow, scheduled & monitored session.
  • Fixed specs defects, technical coding defects such that the data loads properly as per business needs.
  • Extensively worked with various Lookup caches like Static cache, Dynamic cache and Persistent cache.
  • Worked with Session logs and Workflow logs for Error handling and troubleshooting.
  • Responsible for Best Practices Implementation, Performance tuning at all levels and Error Handling methods.
  • Developed Reusable Transformations and Reusable Mapplets.
  • Wrote complex Procedures incorporating Exception Handling.
  • Performed Data Analysis, Validation upon completion of the conversion as well as various stored procedures.
  • Created various Oracle DB objects such as Indexes, Materialized Views, Synonyms, Constraints, triggers, Packages.
  • Performed CDC and Implemented SCD.
  • Participated in meetings, reviews, status updates with the Project Lead and Business Users.
  • Written Data Validation Test Scripts to verify the data at the Sources and the Target.
  • Designed and developed the ELT logic to Cleanse and transform the data in the target from various sources using Canonical tables.
  • Developed various Oracle sub functions like Stored Procedures, Functions, and Packages using PL/SQL as per the Design Documents.
  • Assisted in Migration of code between different environments and Provided Support.
  • Created technical documents pertaining to ETL processes.
Informatica Developer / Infosys Ltd - Issaquah , WA09/2010 - 12/2013
  • Gathered Business requirements from the end users and reporting team.
  • Participated in the entire life cycle of the project, which involved understanding scope of the project, functionality, Data modeling, technical Architecture document, technical design and complete development.
  • Extensively used ERWIN to design Logical/Physical Data Models, forward/reverse engineering, publishing data model to acrobat files.
  • Designed and developed Operational Data Store, Slowly Changing Dimension, Staging areas etc.
  • Designed Informatica Architecture for development, integration and system test environments.
  • Involved in extraction of data from various sources like flat files, Oracle and SQL Server.
  • Extensively used all the features of Informatica including Designer, Workflow manager and Repository Manager, Workflow monitor.
  • Associated with design and development of around 40+ mappings.
  • Extensively worked with SQL queries.
  • Created Stored Procedures, packages, Triggers, Views using PL/SQL Programming.
  • Optimized the performance of the Informatica mappings.
  • Worked with new transformation like Java transformation, Transaction Control.
  • Validated complex mappings involving Filter, Router, Expression, Lookup, Update Strategy, Sequence generator, Joiner and Aggregator transformations.
  • Used debugger to test the mapping and fixed the bugs.
  • Created and used Debugger sessions to debug sessions and created breakpoints for better analysis of mappings.
  • Created mapping variables and parameters and used them appropriately in mappings.
  • Extensively used all the features of Informatica 8.6 including Designer, Workflow manager and Repository Manager, Workflow monitor.
  • Designed and developed several ETL scripts using Informatica, UNIX shell scripts.
  • Implemented Slowly Changing dimension methodology (type 2) for warehouse tables.
  • Did QA of ETL processes, migrated Informatica objects from development to QA and production using deployment groups.
  • Analyzed the session logs, bad files and error tables for troubleshooting mappings and sessions.
  • Involved in Performance Tuning at various levels including Target, Source, Mapping and Session for large data files.
  • Developed validation queries which were also used to develop reports as specified by the users Extensively.
  • Worked with the suite of Healthcare Applications such as Membership, Provider, Eligibility, Group, Product, Enrollment, Provider, Claims, Correspondence and Letters, Facilities, Customer.
  • Also involved in conducting and leading the team meetings and providing status report to project manager.
Education and Training
University - City, State2010Master degree: Electrical
City, India2007Bachelor Degree: electronics and communication
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Resume Overview

School Attended

  • University

Job Titles Held:

  • Senior Informatica Developer
  • ETL Developer
  • Informatica Developer

Degrees

  • University - City, State 2010 Master degree : Electrical
    City, India 2007 Bachelor Degree : electronics and communication

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