@enigmatico @mstar
> The most direct (but not the easiest) way to work in Spain is to apply for a regular work permit. This is usually a very complex and almost impossible process due to its complicated requirements: First, you will have to initiate the process from your home country. Unlike some of the options discussed below, in this case, you cannot be in Spain when you start the application procedure. To do so, the first thing you will have to do is to find a company willing to hire you and manage the application. That is to say, to receive a job offer. But not just any job offer will work, since it must be included in what is known as a shortage occupation list or a list of jobs that are difficult to cover. In other words, in order to respect the national unemployment situation, priority is given to legal residents and Spanish nationals with the vast majority of job offers, so that as a foreigner you will only be able to apply for a very small number of them. The exception to this rule is Peruvian and Chilean citizens, to whom the national unemployment situation does not apply and who can benefit from any job offer.
> https://www.immigrationspain.es/en/how-to-work-in-spain/#How_to_work_in_Spain_as_a_foreigner

tl;dr standard european fare; they have to allow EU passport holders due to the EU freedom of movement, but everyone else has to fuck off unless they're desperate