If by pure math you mean not even a CS minor, then no, not out the gate. But majoring in math is (or should be) a sign you actually enjoy math. That's importan

If by pure math you mean not even a CS minor, then no, not out the gate. But majoring in math is (or should be) a sign you actually enjoy math. That's important for a few domains like computer graphics and data science/machine learning. I think most CS majors are good at math, but that doesn't mean they enjoy it. Furthermore, there is a huge gap between getting good grades in math and actually understanding it. For most coding jobs, that's OK. The workaround is simple: get a graduate degree. If you get a CS PhD (maybe an MS) specializing in a math-heavy domain, you'll end up with the fundamentals and domain knowledge you need. For many positions, it could be a requirement.