Languages
C#, Java, UML, SQL, XSD, WSDL, XML, JavaScript, R, Scala
Libraries/APIs
JMS, JAX-WS, JDBC, Node.js, JAX-RS, JTA
Paradigms
Service-oriented Architecture (SOA), Object-oriented Programming (OOP), Agile Software Development, Test-driven Development (TDD), Scrum, REST, Functional Programming, Design Patterns
Platforms
Java EE, Jakarta EE, SAP HANA, JEE, OS X
Other
Enterprise Architecture, Requirements & Specifications, EJB 3, WebLogic, Enterprise Integration Patterns (EIP), Jakarta EE Design Patterns, SOAP, Software Development Lifecycle (SDLC), FindBugs, Sparx Enterprise Architecture, EJB3, HTTP, TIBCO BusinessWorks, SAP, Enterprise Java Beans (EJB)
Frameworks
JPA, Activiti BPM, JUnit, Spring, CXF, Flex, Akka, Play Framework, Spring MVC, Hibernate
Tools
Maven, Git, IntelliJ IDEA, Checkstyle, Jenkins, Eclipse IDE, Apache Ant, Jira, ClearCase, Mercurial, Subversion (SVN), Apache Tomcat, SBT, SoapUI
Storage
MongoDB, Oracle RDBMS, SAP HANA SQL Script, JSON, NoSQL, MySQL, Oracle 12c