As an airline we are legally obligated to carry out a Reliability Check for each new staff member we would like to employ. We can only employ you once a positive ZUP result has been received.
It can take one to several weeks between sending the required ZUP data and receiving the results.
You can find further ZUP information here.
In general it takes 4-6 weeks until the results arrive. In certain individual cases it can also take longer.