Hostel Job / Volunteer in an english spoken country

My name is Laurent. I am 23 years and come from Switzerland. I have just come back from a journey of nine months in the English part of Canada to improve my knowledges of the language. I really enjoy meeting new people and learn about their cultures as well as share mine. After having spent a few nights in hostels, I found out it was a good way to improve my language skills a little bit more while learning about this work area. Therefore, I am looking for a hostel job (even as a volunteer) for 4 or more months in an English spoken country.