Hi @arkan
Yes, a full-time contract is not required. The main thing is that your salary will be enough to financially support yourself and that the job is a qualified position.
While you have the opportunity card, you can work for up to 20 hours a week in any field.
I’m afraid I do not have any insight into the respective job prospects for accountants in Berlin and Frankfurt. I imagine both cities offer many opportunities to work in that area and through English if you do not yet speak German at a professional level. But cities like Hamburg and Munich also have many large international companies that speak English. However, you may find it more difficult and costly to find accommodation in the bigger cities. To convert your resident permit, the immigration office will also **** at what rent costs you have.
While looking for a job, you can register as a jobseeker with your local Agentur für Arbeit and they will assist you with finding work.
Best,
Éanna