The advanced Postdoc phase begins one to two years after completion of the doctorate. A well-considered decision for a scientific career should now be behind you. The advanced postdoc phase is designed to qualify for a professorship. This usually involves work on a habilitation or equivalent achievements.
Most are employed as an academic researcher at a chair or in a third-party funded project during this phase. It is important that you develop your own scientific profile in this phase and not just follow the research agenda of your supervisors. To do this, you can also acquire your own third-party funded project, and ideally even acquire and lead your own junior research group. Another attractive option is the junior professorship (best with tenure track): With this, you have the rights and duties of a professor while still in your qualification phase and prove yourself in research and teaching, so that you can then move on to a permanent professorship.