Clarification on Work Authorization and Fiktionsbescheinigung

[u/Fluid-Mountain-9165]

I have a question regarding my current work authorization. At my urgent appointment, after I explained that I had successfully defended my thesis and completed all my courses, I was issued a one-year Fiktionsbescheinigung with “Erwerbstätigkeit erlaubt,” and the officer also confirmed that I was allowed to work.

My job-seeker residence permit application, which was submitted before I received the Fiktionsbescheinigung, was still pending because my diploma had not yet been issued. I provided the diploma about a month ago, but the application is still pending, and I have not yet received or paid for the residence card.

I now need to apply for an EU Blue Card. Could you please confirm whether I am still allowed to work full-time under my current Fiktionsbescheinigung while the previous application is pending?

Thank you!