Google has added to the developer documents around job posting structured data a whole new troubleshooting section. This section gives developers access to more tips on how to properly implement this type of schema. Aaron Bradly first noticed this and posted it on Google+, he said:

The troubleshooting section is broken down into these sections:

Structured data is on the wrong page
Content doesn’t match the structured data
Expired jobs are still live
Apply option is missing
Logo is incorrect
Job location is missing or incorrect

Here is Google’s disclaimer to all of this:

Forum discussion at Google+.