Present Perfect and Past Simple in the this statement

I have a doubt concerning the following statement. Talking about the story of a family, which of the following statements is correct:

1. My aunt has found a new job in Melbourne so they moved there.
2. My aunt found a new job in Melbourne so they moved there.

As the fact of finding a job has effect on the present, I would say the first one is correct. On the other hand, there is a mismatch between the two tenses. Can you suggest which statement is correct?
Thanks