Have you found there to be a significant language barrier when moving to Switzerland? I know Europeans generally know English, but is there an expectation that you speak German or another local language?
I'm Swiss but we have a lot of people from different places working here. Many Swiss people are totally fine with English, and since we speak Swiss german, nobody expect you speak it anyway.
That said, in our case, working for Banks, you do still connect to the 'old school' Swiss buissness who are a little less English driven then the Tech sector. That has caused some issues for us, but not all that significant.
Not OP, but I have so e experience particularly in Zurich.
English is widely spoken by a majority of the people you'll be working with, but some sort of basic German can go a very long way. Compared to other cities like Paris or Strasbourg (other tech-ish cities), Zurich is far more English friendly, perhaps only second to Amsterdam.
It’s a bit harder in French Switzerland, particularly Lausanne, some of the people don’t speak English or simply don’t want to. Still not that bad, however.
The police l, if you have to interact with them, might treat you more roughly if you don’t speak the local language.
I spoke enough German to make the transition to Swiss German okay. It's definitely a barrier and I'm still working through it. Most people can and do speak English if they think their English is smoother than your German / Swiss German.
Outside of major, cosmopolitan cities (pretty much Zürich and Geneva), I'd say there is an expectation to speak the local language. Anything official I've done has been in German.
That said, in our case, working for Banks, you do still connect to the 'old school' Swiss buissness who are a little less English driven then the Tech sector. That has caused some issues for us, but not all that significant.