This was the most terrible experience of all time. They want you to write some pretasks, but you don't even know whether they have read or not. They gave you a lot of tasks which take a week, but there's no feedback at all. NEVER EVER apply for this job. There are so many other valuable things you can do with your life. Moreover, I have heard that compensation for the job is not that lucrative. I am almost sure they don't even understand something difficult in my work.