Would you kindly advice how I can enable jobseekers to set up alerts for jobs they're interested in?
Welcome to our forum.
We have job alerts addon for job board manager. you will need to buy individually, please see here https://pickplugins.com/item/job-board-manager-job-alerts/
i am planning to re-write this add-on, so i would like to recommend wait few days to complete rewrite. i will let you know when done.