Good experience with SQL. Should be able to understand and implement performance optimization.
Memory management experience
Queue allocation, distribution experience in Hadoop/Cloud era environments
Should be able to scale clusters in production and have experience with 18/5 or 24/5 production environments.
Good with one programming language.
Good exposure to Hive and Hadoop systems with exposure to monitoring tools. Sqoop, Oozie and other external tools.
Familiar with patch upgrades. Key skills required for Lead Hadoop Admin:
Hadoop (preferably Hortonworks/Open Distribution), HDFS, Hive, Spark, Oozie/Airflow, HBase
Intermediate proficiency in SQL & HQL, Kafka - Good to have
Solid understanding of Linux, and scripting skills would be advantageous
Experience with Kerberos, TLS, Ranger, and data encryption
Any Gradute