Big Data/Hadoop Developer
Current• Worked on Hadoop cluster scaling from 4 nodes in development environment to 8 nodes in pre-production stage and up to 24 nodes in production.• Involved in complete Implementation lifecycle, specialized in writing custom MapReduce, Pig and Hive programs.• Exported the analyzed data to the relational databases using Sqoop for visualization and to generate reports for the BI team.• AWS Cloud and On-Premise environments with Infrastructure Provisioning / Configuration.• Extensively used Hive/HQL or Hive queries to query or search for a particular string in Hive tables in HDFS.• Used Apache NiFi for creating a pipeline which consumes the data from source, does data processing and stores the data into AWS HBase tables using Kafka.• Data files are retrieved by various data transmission protocols like Sqoop, NDM, SFTP, DMS etc., these data files are then validated by various Spark Control jobs written in Scala.• Possess good Linux and Hadoop System Administration skills, networking, shell scripting and familiarity with open source configuration management and deployment tools such as Chef.• Worked with Puppet for application deployment.• Expertise in Storm for reliable real-time data processing capabilities to Enterprise Hadoop.• Implemented Kafka for streaming data and filtered, processed the data.• Excellent knowledge in Import/Export structured, un-structured data from various data sources such as RDBMS, Event logs, Message queues into HDFS, using a variety of tools such as Sqoop, Flume etc.