Reception jobs, other than the administrator in charge of that department, are usually filled by Dominicans. The pay for the job will be at the Dominican scale, which may not be what you have in mind.
Hotel administrative positions are usually filled from within the organization running the hotel.
Many Europeans speak several languages, certainly more than the average American student does. If you speak a third language, such as German or French, that would help you a lot in getting a job in a hotel. You wouldn't have to be fluent, but if you could communicate with the clients from one of those countries, this would give you an edge.
Since you mention A levels, I assume you are from England. BushBaby (Grahame), a regular poster on this board, is from England and often is able to help people who will be in the Puerto Plata area. If that is an area you are interested in, find one of his posts and click the email button under it. This would enable you to send him an email telling him of your interests and abilities and asking him if he could help you.
But since you mentioned that you already have people in the DR in a position to help you, it would be well worth you while to be in communication with them about what they might be able to do for you.