To see the jobs closest to you, tap location in the top-left of the search screen. Under pick a location, you can enter your town name or even your postcode.
Then it’s just a case of selecting the search radius. Selecting 1, 3 or 5 miles will ensure you only see the jobs closest to your home address.
Alternatively, you can see the jobs closest you by tapping the map icon in the bottom-right when searching for jobs.