Joerg Plewe currently is a senior Java and GUI developer and has been in many areas of IT ranging from embedded programming to bioinformatics and games. Joerg has studied physics and used to work with languages like C/C++, Forth, Lisp, Assembly and others in all kinds of environments.
That may be so, but I know Joerg Plewe as the programmer I used to work with over 10 years ago at Blue Byte Software. He is a very serious programmer, and almost talked me into developing an interest in FORTH. The world might have been very different if he had succeeded.
He is also one of the key people behind Flying Guns, an open source distributed 3D simulation framework (aka 3D action flight sim). It is based on a framework for distributed simulations, all written in Java. Pretty impressive!