[MetalMASK]

The VISA situation for internship would be F1, specifically F1-CPT. It would be much easier if Filip is studying in the US, but it is still easier compared to getting H1B.

Getting a silicon valley company to give him an offer would be a per-requisite.

[46Bit]

It's J-1 more likely. F1-CPT from a glance seems to be for things like placement years as part of a Uni course rather than something personal.