1. Languages / Technologies : Java, J2EE (EJB, JMS, JDBC, Servlets, JSP), Restful services, Spring, Hibernate, GWT, GXT 2.0, XSLT, AngularJS, JavaScript, FreeMarker,velocity. 2. RDBMS and NoSQL : Oracle, MySQL, Cassandra, Riak, Redis, Apache-SOLR. 3. Caching Frameworks : Memcached, Redis 4. Test Frameworks : JUnit, JMock, Mockito, PowerMock, Postman 5. Servers and Tools :, Weblogic, JBOSS, Tomcat, Apache/Nginx, Apache, ZooKeeper 6. Version control and build : Maven, SVN, CVS, Git, Ant, Vagrant, Docker, AWS 7. Tools and IDE : Xstream, JAXB, JRebel, Jprofiler, Toad , Crucible, Jackson, Eclipse, IntelliJ-Idea 8. Platforms : Unix/Linux, Solaris, Win32, Mac