What is the difference between the 'Match Resume to JD' and 'JD to Resume' functionalities?

For Match Resume to JD, It brings more job recommendations to the candidate basis on the job profile and the skills. For example, a Java developer will see all the available jobs that require Java as a skill in the job recommendation tab.
 
While for JD to Resume It brings more candidate recommendations for a job position. This is used when a recruiter wants to search candidates for a job profile in the database (indexed documents). For example, if a recruiter has a job profile, for example, Java Developer, then using this feature recruiter can search all candidates with Java as skills, in the existing database. 
 
Please refer to Search and Match (rchilli.com)

If you still have a question, you can always contact RChilli Support via creating a ticket at RChilli HelpDesk or by sending an email at support@rchilli.com.