Congratulations on launching!
One quick potential problem I've found: it's easy to find out who the job is for by searching for a sentence from their post and finding other places they've posted.
I'm not sure how you're going to find a way around that unless you only show a unique summary of each post—enough to give a flavour and entice the signup, but not enough to give away who the job is for.
Or perhaps I'm just tight and others will be happy to pay for conveniences sake.