I have a french friend who has a doctorate in french liturature who is currently teaching in Barbados, before that she had a post in a university in the USA.

She would like now to come to Thailand to teach here in a university.

About 12 years ago a Bangkok university proposed that she come teach there - she now cannot remember the contact from that time.

Is there a job finders site for this type of work in the universities of thailand?

Not that I know of, here or at 'ajarn.'

Look at which universities have a French international program. Most international programs here are in English, but I know of quite a few Thais who speak French fluently, so they must be coming from somewhere. Have you checked the big three, Chula, Thammasat, and Mahidol?

CMU has a French program as well. My host mother was a french Major, spoke French and English fluently!