Ask HN: Programmer at a Financial Startup

If you need to understand derivatives then start with Hull: Options, Futures and Other Derivatives. Then read Björk: Arbitrage Theory in Continuous Time. Both excellent books in their own ways.

But it depends completely on what kind of finance you’ll be doing!

CFA Foundations can give you a wide basic understanding. Then you can get more in-depth with some of the books mentioned above/below.

You might want to pick books from this Reddit thread relevant to your work and interest.

https://www.reddit.com/r/algotrading/comments/jye0bj/literat...

Perhaps you should ask your new colleagues if there are any books they'd recommend?

Do not store money in doubles and buy some bitcoin

Why not in doubles? They round?

"Some people, when confronted with a problem, think “I know, I'll use floating point.” Now they have 1.999998 problems."