0 components like, Yarn and High availability Hands-on experience in creating Clusters, HDFS backup and Migration Hands-on experience with cluster upgrades, migrating applications and customization Hands-on experience in AuthenticationAuthorization mechanism such as Kerberos and Sentry Experience with Big Data Administration and production level support for onsite and offshore teams a plus Infrastructure architecture experience, including hardware sizing, effort estimation and security design Strong DBA skills with at least one of the following: PostgreSQL, Oracle 11g, DB2 10