ETL Developer

hace 4 días

Ciudad de México, Ciudad de México Atos A tiempo completo
  • Analysis of the requirement specifications provided by the clients.
  • Preparation of HLD, project plan based on the business functional spec.
  • Review of ETL Detailed design documents for Mapping and DDL specification document for creation of tables ,defining keys/constraints on tables and data types.
  • Analysis of Data model to check table constraints and columns in Data mart Extracting data from sources like Oracle and Flat Files using Power center designer and transforming them using the business logic and loading the data to the target warehouse.
  • Understanding business requirement document and Creating or Designing mappings as per the business requirements Using Transformations such as Source Qualifier, Aggregator, Expression, Lookup, Filter, Sequence generator, Router, Union, Update strategy etc.
  • Writing Test queries on source data as per business requirement for balancing the Target data.
  • Coordination of system/Integration/UAT testing with other teams involved in project and review of test strategy Used complex data transformations 11.
  • Fine tuning Informatica Power Center mappings and sessions to improve performance Coordinating with business and development teams for closure of UAT defects and creating ad hoc reports for end users.

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