Hi Ian
The recruitment for staff at PIK is being done a little on the Q.T., I think. Certainly, it hasn't been widely advertised.
An ad DID appear in Flight International, though it was a month ago or so. I do believe that they still need people and are very much accepting applications.
I suggest simply sending your CV with covering letter to the email address listed here :
http://www.air-omega.de/kontakt-e.html.
Best of luck.