I want to add GeoFencing Module in my kotlin apps

Hello freelancer, I am a CEO in ASIAN IT INC. I have developed a location tracking apps using kotlin and java. All the options are working well. I need the geofence module in my current apps. I need the system like the below message.

# Admin will create multiple geo-location and the location will be saved in my database

# When the employee will visit the created location then the admin will get a Notification and a API will call with the employee logged_in id (primary id) so that we can send SMS or creating visiting record inside database. You do not
need to work on backend part. I will manage it.