They reached me on LinkedIn. Whoever they were, they didn't even personally identify, like "hello, this is John Doe from GRGIT". The job description was okay, it provided a pretty accurate idea of what it involved. But they were pretty cold and impersonal, and didn't disclose any relevant information about themselves. I'm still thinking they're some sort of scammers. Anyway, after a couple of messages exchanged, they already asked for my salary expectations, I found that rather inappropriate, provided that we barely talked about the position at hand, and after I replied, they seemed deeply unhappy with what they heard, and answered impolitely with a very unprofessional slang word. So my conclusion is: they are either unbelievably unprofessional and incompetent, or simply a scam. You should definitely stay away from this company.