Rails since 2005, ruby since 2004, Comp Sci since 1992. html+css since 3.2. Professional development since 1994 with smalltalk, c, c++, perl, java. Nontrivial code in Ocaml, swi-prolog. Played with Oz, Scala, Nim, Racket, Clojure, Haskell, Julia. Good at data, from unstructured through relational.