Hello there! There are always going to be TEFL jobs advertised that "require no qualification or experience" but I would be wary of these. You will probably find that these "schools" turn out to be cowboy outfits, your salary will be lower, the number of contact hours you are required to teach may become unreasonable and there isn't any type of in-house training given. I would suggest taking a TEFL course. Once you have the necessary certificate, there are immediately more options available to you. You mentioned you were interested in moving to Madrid, which is full of TEFL teachers and language institutes. A TEFL certificate is a must. Hope this has been of some help to you and good luck!