wintermute, binance, crypto.com, alphalab capital... there's still a few more, i forgot

also no you dont need masters or first class, im pretty sure. i got interview for some of these companies and im not even from NTU / NUS FCH but their OA was some crazy 4-8 hours long hackerrank where you MUST know how crypto trading works or else 100% cannot make it.

As for the exit opportunity it really depends on what you want. If you don't mind going into AI or C++ specific roles then crypto companies are pretty good.. most of their roles are C++ , so you become a C++ specialist, then 2-3 years later you hop to an AI company working with C++ and slowly expand ur skillset there.

If you want front-end dev then of course no lol once you work with C++ for years, you're going to fking hate web languages like JavaScript and other loosely typed languages. Not to mention the fact that you'll be wasting your skills.