Very poor experience applying in Tallinn, Estonia. The first interview was with an HR who was really good. Second interview was technical with two developers with their native-language as russian who didn't even understand the questions they were asking. And before the interview an NDA will be sent you that you must sign. It follows the US laws even if you apply in Estonia. The first question was what is "useEffect" in react - I explained what it is. After the question the senior developer asked "but how do you unsubscribe from an event in useEffect". The answer they expected was that useEffect can return a function, but the question itself makes no sense at all. They also asked about mixins but after I explained how I have used them I realised they didn't even understand mixins themselves. Later I asked them a bunch of questions about their current applications and the answers were very poor as well. Feels like the language barrier to interview in English was too much for them to handle and asked questions that they had previously written down or asked CHAT - GPT and expected a 1:1 answer from me.