Due to lack of foresight, I did not take any graduate level advanced mathematics or numerical analysis course. Nor do I have good grades on the subjects during my undergraduate studies.
However, I have 3 publications in Q1 interdisciplinary journals (not mathematical or numerical analysis journals) which required the application of the mathematical and numerical analysis concepts. Though, I mostly used commercial software in my research, I self studied, relearned all the required fundamentals from different sources (books, online courses, documentations).
Can the lack of credit based graduate coursework be a huge bottleneck in my future faculty applications? Can it be compensated by published works?
Is there something I can do in the next 1-1.5 years (before I start applying to places), that can put me in a better position?