How is it in data analysis?

Question

data mining

Are there data scientists on the toaster?
Interested in the following questions:

1. How did you get? If after software development is it better/worse?
   
2. What's your job? In a bank, university, startup, outsourcing company, it giant (Yandex, Google?). Why in this particular place?
   
3. Do you often conduct interesting research work at your place of employment?
   
4. Do you often apply your knowledge in the areas of discrete mathematics, complex statistics, linear algebra, algorithms?
   

Answer 1

3. Often interesting, most often scrupulous in order to reach the interesting one.
4. More often there is nowhere to go.

Answer 2

something like this
habrahabr.ru/company/hh/blog/268319