You have an option to rate Applicants manually based on the evaluation during the selection process. In 'Applicants' sub-menu of a Recruitment Requisition, you can see two columns as 'Overall Rating' and 'Rated By'. You can add an overall star rating to an Applicant considering the selection process and also considering the Person–job fit.
An Applicant record should be added to 'Applicants' sub-menu of a Recruitment Requisition.
Rating will display as stars and login person's name will display as 'Rated By'