How to fully use the knowledge of mathematics?

Question

Mathematics

Graduated from the Physics and Mathematics Lyceum. He studied with the winners of the International Mathematical Olympiad, himself a winner of a huge number of them (in mathematics). The school gave the first two courses of Mekhmat and a huge base of Olympiad mathematics. I caught fire with programming - I entered to study. Everyone around is trying by all means to get away from the use of mathematics, proving that this is not necessary. I, on the contrary, every time, using artificial methods, still try to attach something mathematical))
The question is something like this: "what should I do to use mathematics more in programming? Which area to choose so that it is still quite popular and in it was where to grow and with whom to communicate? Where to start?

Answer 1

Machine learning and financial analytics (model building).
It is very profitable now and mathematics is very necessary.

Answer 2

Mathematics is very necessary in communication, in cryptography, algorithms, modeling.

Answer 3

Machine learning.