By default, when you bulk edit listings from within the WordPress dashboard (WordPress Dashboard > Listings > All Listings > Select Listings > Bulk Actions > Edit > Apply > Author), you cannot assign a different author to those listings.
This code snippet allows you to bulk assign only accounts with the administrator role. If you want to allow more roles, you can do that with MyListing Pro.
PHP
add_action(
"init",
function () {
add_post_type_support("job_listing", "author");
},
20
);