hm, well please look at my payrise hub and you will learn what to do. As for you answer, defenitely you would need to know languages, at least English. Also there are a specific requirements which you can find in that site which Akindelly mentioned. As for languages, you will need to know French and English. You need to be of a good character, so you need to have a very good references. You need to know ethics. International relationships, code of practise etc. Those are quite crucial to know if you want to work for or with UN. You will need international certificates or qualifications which are valid everywhere. For example Cambridge certificates. It is not easy to get a job in UN. The best bet for you can be a recommendation to UN from somebody. This way you will ensure that you have somebody behind you, who can push you there or at least will recommend you, which is quite great deal. E.g. University or government recommendations are quite usefull. Please, always have it on paper.