Attila Szegedi is a Principal Member of the Technical Staff at Oracle. He is also known for his work on several Open Source projects, most notably he is a contributor to Mozilla Rhino, a JavaScript runtime for the JVM, a contributor to Kiji, Twitter’s server-optimized Ruby runtime, the author of Dynalink – the dynamic linker framework for languages on the JVM, as well as one of the principal developers of the FreeMarker templating language runtime.