Many postdocs are academic staff working at a university or research institution. Their salary is not generous, but much better than that of doctoral students.
Postdocs should bear one thing in mind above all else: a strategy to withdraw from academia is highly advisable, for secure positions are rare.
In Austria, everyone who has their usual residence in the country is subject to tax. The country allows for generous benefits to scientists and researchers to attract people from these fields from outside the country to move to Austria to live and work. This article will help you have a greater understanding of the Austrian income tax system before you arrive.