Andrés jorge silveiro luto The same way as you would give your account details in any other European country. Name, IBAN and BIC.
You haven’t really said what you’re expecting here, but if it’s an IBAN that start with ES, then you need to look at a Spanish bank, not at a Dutch bank. There isn’t any reason for a Spanish company to not pay wages to Dutch bank accounts, though. The only reason might be ignorance.
Anyway, it doesn’t matter if you move from The Netherlands to Spain or if you would have been in Spain all along. If you register with bunq, you get a Dutch bank account that works all across Europe. It’s the same thing like when you live in The Netherlands and you register a bank account at Openbank, you will get a Spanish bank account (that you can also use in The Netherlands). The wonders of SEPA.