Core Java(J2SE), Advanced Java(J2EE), JSP, Servlet, Struts2, Selenium Webdriver, PhantomJS , Jsoup, HtmlUnit, NodeJs, SailsJs, JavaScript, JQuery, Bootstrap, HTML5, CSS, XML and Databases like SQL Server, MySQL, Mongo DB, Couch DB, Postgres SQL, Webservices like SOAP and REST, Apache Tomcat 5 and above.