Strong Unix & Linux skills, ability to write shell scripts for information gathering purposes.
Sound understanding of Java/JVM architecture, JVM tuning, GC, Class loading, Thread Dump Analysis, JMX based JVM monitoring (JConsole)
Java hands-on programming (or some other language) for custom test data synthesis/manipulation
Weblogic tuning & console monitoring of various server resources like DB connection pools, Threads, JMS queues/topics/modules/factories etc..
Good familiarity of queuing principles of Websphere MQ
Good understanding of Oracle Architecture. SQL, PL/SQL, Performance Stats, SQL tuning, Explain plan, Tracing tools, Hints, Fragmentation, Partitions, familiarity with at least one Oracle tool like TOAD
Good understanding of Oracle Replication technologies – Streams, RAC
Conceptual understanding of Oracle backups – Export, Data Pump, RMAN
Familiarity with information security
encryptions, SSL/ TSL etc.
Good understanding of Load Balancers like F5 – LB methods, Virtual servers, Virtual Pools, Rules, Connection & Cookie persistence.