Sorry, but as in Portugal a monthly payment means that you work 35 hours/week for the whole month,so I didn't remember to state it...
Of course experience matters, but that's why I would like to know an average, so that I can consider it when taking other factors in consideration.
Can you give me an idea (ex. from XXX to YYY), please?
Do you refer to a full-time, salaried, position?
There is no "normal". Salaries vary according to the job description, to the skills/degrees required, to experience, etc. To name only a few variables. Salary negotiating skills are also a non-negligible factor.
Just like any other job in the private sector. Hint: if the employer agrees without hesitation to the salary you ask, that means you are not asking enough. Not that there is anything you can do at this point