EPAM Systems Machine Learning Engineer interview questions

It is an extremely simple process (I don't understand why there are reviews of difficult interview if it is one of the easiest I have had, if not the easiest). First you are contacted by Ukrainian recruiters via Linkedin. Then, you have an interview where they tell you about the opportunity and compare if what you say in your CV is true. Then comes the technical interview, which is nothing more than a rather long talk (90 min) in which you are asked about very basic concepts of data science, machine learning, software development, and some big data. It's quite easy, really. In my experience, I had 3 interviews for different projects and was never hired. Without giving any feedback, they wrote me messages such as "We are sorry to inform you that, unfortunately, the client decided not to move further with your candidacy." I am in Latin America and EPAM offers salaries not much different from what is paid locally, when the clients are foreign and pay EPAM in dollars at full rates.