Spak, if you want to work in Spain, most probably you'll need to use Autocad instead of Microstation/Triforma.

also... do you speak good Spanish? This is another issue for a principal to consider when hiring foreigns.

in Barcelona and Catalonia most offices use AutoCAD as a primary tool, some work with Allplan or Archicad or some others, but that's just a plus.. for renderings 3dS Max its the most common..

as far as I know, Microstation is basically used in the urban dpts. of the city councils, both in Barcelona and other medium cities in her metro area.. also some municipal agencies that deal with urban issues use Microstation too...

there's probably a minor group of standard arch offices who occasionally participate -or work on a regular basis- in urban projects together with the local or national administrations that probably will have a copy of MS in their offices but that's not the norm... and since most structure architects, technical architects and engineers work or have AutoCAD too, MS isn't that useful on a typical catalan firm..