Uses C, C++, Java, Python, Ruby when the job requires it.
Prefers POSIX to any other abstraction layer.
Spends most of my time on High Performance Computing problems using GPU and Cell accelerators.
Loves CORBA...;p
Prefers Rails and Flex over any other web stack.
Prefers Python using the EPD stack (iPython, numpy, scipy, etc...) over Matlab for scientific computing.