To create recurring jobs in your Web Portal > Recurring Job Profiles.

While creating a Job, you can make this into a Recurring Job Profile.  

To create a recurring profile > Jobs > Recurring Job Profiles > + New Recurring Job Profile. Add in the job details and select the Recurring tab to set the frequency or the recurrence. You can choose the interval type, frequency, when the recurring cycle will end or infinite (End type = 0 will mean that the job will recur forever or until you delete the recurring profile. 

There are tips on the elements of the recurring to help you understand the meaning of each item. 

A recurring job can be unassigned or assigned to a user. The created jobs can be reassigned.