Cajero is in Tías. Tap the map or the "Get directions" button to see the exact location and the route from your position.
Yes, Cajero is currently open according to its published hours. See the full schedule above for the details.
On this listing you can see "Other atms nearby" right below, sorted by proximity. You can also open the full atms in Tías page for the complete map ranked by distance from your location.