Wipro Limited Tech Lead Big Data in Jefferson City, Missouri
* Collaborated with multiple teams for design and implementation of Hadoop clusters, Responsible for commissioning and decommissioning of nodes from Clusters, Importing and exporting data into HDFS using Sqoop. Maintaining cluster health and HDFS space for better performance. Configured various property files like core-site.xml, hdfs-site.xml, mapred-site.xml based upon the job requirement. Moving data efficiently between the clusters. Rebalancing the Hadoop Cluster. Working on Namenode high availability customizing Zookeeper Services. Involved in bench marking Hadoop cluster file systems various batch jobs and workloads. Involved in minor and major upgrades of Hadoop and Hadoop eco system. Experience on manual failover and automatic failover. Deep knowledge in Hadoop Core Components including Sqoop, Hive, Spark,HBase, Zookeeper, Oozie, YARN etc. Expertise in Hadoop job schedulers such as Fair scheduler and Capacity scheduler. Allocating the name and space Quotas to the users in case of space problems. Installation of various Hadoop Ecosystems and Hadoop Daemons. Involved in Installing and configuring Kerberos for the authentication of users and Hadoop daemons. Handling Nagios alerts to handle CPU, Memory, Storage. Optimizing performance of Hive/Sqoop/HBase/Spark jobs. Experienced in managing and reviewing Hadoop log files. Exposure on 24X7 Production Support environments.Hands-on experience on Problem Management, Change Management and Configuration Management.Ability to play a key role in the team and communicates across the team. Documenting all production scenarios, issues and resolutions. Experience with change control, problem management.. Please visit our career site at https://synergy.wipro.com/ResumePosting/CareerSiteJobsDescription.jspstrCompaneyCode=WT$746536$p to apply for this position.