It is between the job poster and the freelancer to agree to payment terms and process.
There are no payment options through the site. Think of it simply as a forum.
That's a cool site, too bad it doesn't handle the payments because that would be a secure way for the worker and the company. Other way the worker can get scammed and not get the payment after doing the job.
I really with there were more job options on the site, that way i would open an account and try, but right now it only has 2 jobs in all the platform, so, for me it doesn't even worth the attempt.