Hello, I'm Italian, I have a 1 year work permit ending in June, in which is stated that I'm not authorized to work in any occupation other than stated, for any employer other than stated and in any location other than stated. A private employer is willing to give me a job for 3 weeks (another occupation and location) that probably can become a new job from June. My company can give me 3 weeks of unpaid vacation, which I was thinking to use for this new job experience.

I'm pretty frustrated about this situation. Do I necessarily have to quit my present job to make this 3 weeks work experience, even if all the parts agree? How would you suggest me to move? Thanks