Stardex is designed to be highly customizable, inspired by Salesforce’s data model. At it’s core, Stardex consists of persons, jobs, deals and companies object. You can then add different custom attributes / fields to each of these. Think of custom attributes as elements that you want to store (e.g. current salary, location preferences, industry preferences, skills, etc).
You can also add custom attributes to a person itself (such that it shows up on all profiles), or you can add them to persons associated to a job (aka Candidates).
To add a custom field:

Admins can manage organization-wide custom fields from Settings → Organization → Data Model.
The Data Model contains separate tabs for: