I'm an adjunct professor teaching CS Engr - java, OO, AI I run a company that specializes in computer apps for transportation & city planning and another consulting company specializing in intelligent strategic planning stuff.
I am fluent in python (our application development is in python) but also speak ruby/rails, php, c++, java
Been using Linux for 10+ years - our companies have been solely Linux & open source since 2000. Huge advocate of open source. Help out a bit with Inkscape.