It is not that easy to get your place into the translation campaign because these days managers have created their own list of trust or they also called it as Reserved Translators. These are the people who will get first preference for translating the ICO documents and if they by chance ignore some opportunity then you may be the next who will get accepted for the translation. I believe that this process has gotten difficult these days and no one is leaving their job so easily and thus getting hired for it would be tough. If you want to make entry into it then just show your proof of work and they may consider you.