Being a trained physicist I learned Mathematica while
developing FeynCalc in 1990.
Since then I use Mathematica extensively.
I do like some other programming languages like Fortran and Java.
I work at my own company, GluonVision GmbH, in Berlin, Germany, doing mostly
(cloud)Mathematica related consulting and projects.
Lately I became more and more insterested in Enterprise CDF and cloud projects.
My company info is here