If not, you should pay more attention to the recruitment websites in Nanjing.
A better company usually has to write a written test first, which is passed in the interview.
Interviews are usually at the location of the company, so if the company you invest in is in Nanjing, go to Nanjing for an interview.
It is not easy to find a job across regions. It will be easier if it is a local household registration, otherwise it will be difficult.
If your school is well-known in Beijing, I suggest that you still work in Beijing, otherwise you may not find a job for local students when you go to Nanjing.