*edit* There is indeed a place already... I just couldn't find it easily.  It's the Communities Jobs Corner... accessible here:

https://community.progress.com/job_corner/

I'm in discussions with the powers that be about job postings in the communities area.  I haven't received official confirmation yet, but I expect that it's going to be frowned on.  I will be pushing for some kind of an alternative and will update you all in here.