Job Directory Cognizant ETL- Manager

ETL- Manager Cognizant
Weehawken, NJ

Cognizant is a provider of information technology, consulting, and business process outsourcing services.

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About Cognizant

Job Description

* Expertise knowledge on Hadoop framework In-depth understanding of HDFS & MapReduce architecture.
* Excellent knowledge on Spark components like Spark Core, Spark SQL and Spark Streaming. Experience on Spark Core, Scala and creating RDD to perform aggregations, grouping, etc. in Spark.
* Data migration from RDBMS, flat files to Hadoop file system using Sqoop jobs.
* Hands on experience on Integrating Hive with Spark to perform HQL in Spark.
* Optimizing Impala / Hive Queries with Partitions and Bucketing.
* Writing Impala queries for Text DataMart job and calling them through SQL.
* Used Sqoop to Import the RDBMS data into Hadoop File System
* Analysing the real time processing problems / root cause analysis / finding - suggesting workaround in sev1 situations.
* Validating the hive table's data by using spark sql.
* Develop different test cases and scripts to valida