It is helpful to know all you can about the company, before going for the graduado en eso appointment to get a job. If you can talk with the interviewer about their firm, it will make it look like you are really interested in working for them, while doing an interview. Do your investigation by searching them online or asking around about them.
Do not just search for one job title, because the place you are currently seeking might be listed under different names. Find what other names your chosen jobs pass by. This will give you a much wider array of jobs to apply.