On Get on Board, all published jobs (except those in part-time and freelance modes) must specify salary. When you create your job posting, the salary you specify is compared to a minimum value. If a job offers a salary lower than the minimum value calculated by Get on Board, we will not accept its posting.
The salary offered can be hidden from public view, this option is available when you create a job on Get On Board. Applicants to your job will always be able to privately view the salary range you indicate.
If you need help calculating the salary range you can find it here.