Working in Europe sounds cool.  Working for a major international organization sounds neat.  Being in the land of Chocolate, cuckoo clocks and cheese main courses could be creative. 
And so apply online. 
Set up a user account
OK I can do that.  Enter my name and all that junk.  It only takes a few minutes.  I can cope with that.
Click submit.  That's cool.
Go back to the main page.  Error message "your session has ended, please login"
Er no - my session never started.
I login.  That user name is already taken.
OK.  I'm calm. I'll go back and create a new user account.  Enter the same old crap again.  And mess up the password when I retype it.  I am not losing it.  I will not swear at a website in Switzerland.
Back to the main page.  Same old error message.
Swear words.  Cursing.  Grrr!   I am cursing a neutral country famous for expensive timepieces.
OK.  Maybe I'll try and be someone else.  I can login in under my other email account the one I keep for spam.  But then I'll forget to check it and there will be an invitation to fly business class to the Alps and I'll delete with an ad for Viagra.
OK I'll just leave.  Maybe I don't want to leave the US.  That's fine.
YEP.  I guess they really don't want people to apply.  So that way they can give the jobs to their friends and buddies.  Now I am getting paranoid.   Or is it just flawed software.  I don't know but it ticks me off!!!