Under 'User Management', you can add and remove recruiters and manage their permissions. For example, you can manage who can create job positions.
In the page you see all the company users and their permissions. If needed you can hide individual job positions from certain users by clicking the 'Hidden positions'-link in the user's row.
You can manage default permissions from 'Show company default permissions'-link. Here you can adjust what default permissions a user will get when his/her account is created.