Mariya Moeva from Google posted a new and helpful frequently asked questions document in the webmaster help forums around the new job search functions in Google.
Google is encouraging webmasters to mark up their job listings so that Google can show them in web search for job-related queries. Yesterday, Google published this helpful FAQ around this topic.
Here is a copy of the FAQs for job search postings for webmasters:
Q: Why aren’t my jobs appearing in this feature? As with any other structured markup feature in Search, having markup doesn’t guarantee appearing in the Search results. To debug any issues that are related to the markup implementation, go through the following:
Validate the markup in the Structured Data Testing Tool.
Check that your sitemap has been crawled and does not contain any errors. Sitemaps need to be accurate and correct in order to be processed.
Go through your Rich Card Report in Search Console to check if there are any potential issues