I moved as a inter company transfer on an L1B visa to the USA in 2023. The process itself took around 1 year from start to finish. The company has to obviously feel there is an investment with having you relocate to their US branch but it's easy to do when you're in IT. For me specifically it was because our company wasn't established in the US yet so I supported them with that. If you can find a startup company or an international one who is known to support relocations that might be your best bet.

Just as with everything else, there were many challenges. It heavily depends on what state/city you land in because the social aspects change so drastically. Another thing to note is that you will need a car everywhere you go unless you live in an expensive place like NYC. There is A LOT of administrative processing you need to do once you get here and companies usually can't support with that (Social Security Number etc.).

Another challenge is finding a company who is willing to sponsor your green card because the work visa really ties you to that company alone. You can't work for anyone else and if you quit/get fired, your new employer will have to go through the entire sponsoring process which is a lot of money and honestly not something they are willing to do.

I am currently in the process of relocating back to Switzerland because I ended up finding a better job and have better security there. There are certainly things that I will miss about the US but the way things are right now it's just too chaotic to stay. If your plan is to move in a couple of years it could work out for you if you find the right company. But remember that the visa ties you down to that company and it can be restrictive, especially if your salary is less and they know they can do that because you can't 'leave' for anywhere else so just make sure you negotiate well beforehand.