Search by geolocation integration

Hello, we need a experienced wp developer. So, on the Traveler theme: [login to view URL] we should integrate geolocation functionality by using proximity and put that functionality into the search engine. The search engine on the frontpage would have only one field that, based on the current location, place results on the listing in the perimeter of 30 km. Current search bar have to be disabled. In cpt (custom post type) theme by default have lat long fields. Other important informations: - Search bar with only 1 field (location and geolocation). - With autocomplete option. - The user cannot choose the radius (by default 30km), we will change later the radius to another radius in code, if it's necessary. - The theme works in general. Here is the site: [removed by Freelancer] Here is the theme: [login to view URL]