Anna is a lecturer at her Alma Mater. By keeping good contact with her professors, she was able to obtain a job offer before she came back to Central Europe. International experience is useful, but only to a certain extent. In a small country, a lot depends on who you know, who you studied with, who recommends you. The job search in academia is not an open competition.
Personal relationships matter a lot.
I imagine this is true in other fields too, especially when it's very competitive. Many non-corporate jobs are not advertised in the classifieds or with headhunters. You need to get connected in the field so that you can get tips from other people. However, it's still possible to get jobs even without many years of experience. Some employers are looking for people with fresh or untainted perspectives, people who don't have bad habits from previous jobs.