Hi Ann Marie,
we found out about teaching vacancies by looking on the "official notices" on the Gib Govt website in Feb, it asked for all would be teachers to apply by the closing date, the next week! My wife applied by post and was invited to an interview there, we are awaiting the outcome, we've been told we'll hear this week and if offered it will be a "contracted post". Jobs are open to non Gibraltarians who can work there - ie EU citizens. I guess assistants or librarians would be advertised there too. But it seems like its an annual recruitment round, miss it and wait a year! I dont think there are any private schls in Gib are there? Nearest is up the coast about 40 mins - forget the name... hope this helps!
Nick.