It could make job of the recruiter or HR person in the company significantly more efficient.
My suggestions below are applicable to robotic process automation software
Really depends on what you need to automate, I assume you want to build a schedule, upload your posting and let software post it for you, if that is the case.
Download attachment based on keywords in the subject of the email, and file email to my designated folder
It does repetitive work for you, most of the time it comes with added benefits like improved speed, reliability and accuracy of completed work.
Software is available to any size business it is fairly easy to implement, does not take lots of time and usually works with your existing infrastructure.
Businesses usually are resistant because they do not want to change and there could be multiple reasons for that.
Deploying RPA (robotic process automation) on top of a process that is already partially automated would be best way to automate the automated.