A role is a set of permissions. Chainlink includes system roles, such as Super Admin, Administrator and Warehouse operator, and you can create your own.
Create a custom role: in Settings › People and access › Roles, enter the name, select the permissions and declare the license type it requires. A role that includes supervisory or configuration permissions requires an Administrative license.
You cannot create or assign a role with more permissions than your own. System roles cannot be deleted.