While hiding salary from public view is a benefit of subscription plans only, all jobs posted (except for part-time and freelance jobs) must specify a salary range.
Please note that by hiding the salary from public view, your job applicants will always be able to privately see the salary range you specify (i.e. if you invite them via Talent Database or if they specify a salary above the maximum you specified).
If you have a subscription plan and you have hidden the salary, you will still be able to see it in the posting (because of your company role). You can verify that the salary is hidden from public views by entering the salary URL in an incognito mode window or another browser, to see the job as professionals see it.