Its own page. Every live job has a public page at /jobs/<job-slug> with the apply form on it. Share that link anywhere — your website, a post, an e-mail.
Your careers page. Every live job is listed on your hosted careers page at /companies/<your-slug>.
The job feed. Offerrole publishes a feed of live jobs for job aggregators. The LinkedIn feed carries a job only when its employer is the organization that owns the LinkedIn Company Page id in your organization settings, so add yours there if you want your roles in it.
There is no public browse-everything job board: candidates arrive through your links, your careers page and the feeds. Postings go live on submission unless you save a draft, and closing a job takes it down everywhere at once.
Posting and reviewing are free. Every stage, e-mail and export described here is in the console from the first sign-in.