While I have degrees in mathematics and theoretical computer science, I have since become a quantitative social science researcher. My day-to-day programming experience is largely with applied statistical analyses and simulations, although I maintain an amateur interest in abstract theoretical CS issues.
My first major programming experience was with Mathematica. I have at various times programmed in (or at least dabbled with) C++, SAS, SPSS, Javascript, R, and Haskell. On the whole, I tend to use multi-paradigm languages in a functional style. I enjoy Haskell the most, and am trying to shift most of my work there, but still consider myself a beginner.