Level of CS required for quant hedge fund
I am currently a high school junior looking to study mathematics at a (hopefully top) university in the UK or the US.
I want to work at a quantitative hedge fund company like, and I was wondering how much CS I would need. Is it enough just to know how to programme with languages like Python and C++, or do I need to actually understand the CS aspects like the theory, proofs, computer architecture, etc?
More specifically, Cambridge only offers two separate CS and maths courses, but Oxford has a course called "Computer science and mathematics". Would you recommend the Oxford course?
As a side note, in your opinion, what is the future outlook for quantitative?