The question to ask is do you "need" to pick up advanced math? From college,

you should have learned calculus, discrete math (CS required), differential equations and probability & statistics. At least these are what most engineering math covers.

Personally among these math fields, I only found prob & stats really useful in daily life even I didn't use it technically. When it comes to programming and software engineering... discrete math topics boil down to logic, which is really common sense.

However, if you are planning to take masters or something and it requires you to have advanced math knowledge as a prereq, those topics would really be again in differential equations, prob & stats (eg combinatorics, permutation stuff) and my favorite topic analysis (eg advanced calculus really).