In general, a good place to start is, "Working on tools or engines that other developers use to do really cool things." - Graphics engines like Unity - Crypto

In general, a good place to start is, "Working on tools or engines that other developers use to do really cool things." - Graphics engines like Unity - Cryptography - AI, ML, or predictive Analytics - Image Computing (either medical image computing software, like MRI image parsers, or Image / Video editing, like Photoshop) - Mathematical Computing Toolkits like MATLAB Generally speaking, if it requires a lot of computing power to perform, there's a good chance a lot of math goes into making it.