hi..
I think your girlfriend should speak italian to get by herself into the local market and anyway into the italian one.
salary as emplyed can be maybe between chf 4000 (beginner) and 5500 (project leader). difficult to say - i do not know the ticino situation.
you can search architects profiles and jobs here:
www.swiss-architects.com/
or/and speak directly with teachers at the SUPSI University ?
good luck !
ste