[mfworks]

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.