I applied online. The process took 1+ week. I interviewed at GMV (Tres Cantos) in Apr 2012
Interview
Telephone interview with a HR representative, and then a technical interview with the same HR person, my future supervisor, and 2 additional technical leaders
Interview questions [1]
Question 1
Nothing special, technical questions about object-oriented programming and some computer network stuff from a programming perspective (sockets, Corba, etc).
You should have clear if you are willing to work at military projects