Dubois' co-pilots on Flight 447 were David Robert and Pierre-Cedric Bonin.
Robert, 37, joined Air France in 1999 and had 6,600 flight hours with the airline, becoming qualified to fly A330s seven years ago, in April 2002.
Bonin, 32, joined Air France in 2004. He had 3,300 flight hours and had qualified to fly A330s last June.
TrimStab
Which pilot at the controls was ex military? - assuming the above is correct, their ages don't give much room for joining the military and going through flying training before joining the airlines.