Languages
JavaScript, Java, Groovy, SQL, Ruby, C++, Bash, Pascal
Frameworks
JPA, Hibernate, JUnit, Apache Wicket, AngularJS, Spring, JSF, Apache Struts 2, Ext JS, GWT, Mockito, PowerMock, JBehave, Android SDK, Qt, Ruby on Rails (RoR)
Libraries/APIs
JavaMail, JAX-RS, JAXB, Java Servlets, Java Security, RichFaces, AngularUI, Jackson, SAX, Node.js, Facebook API, Facebook SDK, Twitter API, Android API, jQuery, LinkedIn API, Google API
Tools
Apache Ant, Maven, Subversion (SVN), Git, GitHub, Apache Tomcat, IntelliJ IDEA, Apache JMeter, Gradle, JBoss Drools, GitLab, Vim Text Editor, Qt Creator, Eclipse IDE, Microsoft Visual Studio
Paradigms
Object-oriented Programming (OOP), Design Patterns, Aspect-oriented Programming, Service-oriented Architecture (SOA), Agile Software Development, Functional Programming
Platforms
Linux, Android, Windows, MacOS, Oracle
Storage
MongoDB, MySQL, PostgreSQL