WP Job Manager Bookmarks Addon GPL Overview:

Allow logged-in candidates and employers to bookmark jobs and resumes along with an added note.

The bookmarks add-on is a simple solution for allowing candidates to bookmark jobs, and employers to bookmark resumes (if using the resume add-on). Either type of bookmark can be given a note, allowing you to keep track of why you bookmarked an item.

This plugin also has a shortcode that allows you to list a user’s bookmarks in a table.