I have a good friend, in the US, with a Ph.D. in math. It seems like there is no job he can _not_ do.

Consulting for oil/gas/drilling as they always need analysis.

Financials.

Data analytics (of any kind).

Physics labs/research labs.

Manufacturing (optimization problems, efficiency problems, actual problems <snicker>)

Have you thought completely outside the enclosure?

Sitcoms (look at the people on Futurama or Big Bang for example)

Porn (how _would_ you figure out the volume of that thing??)

Entertainment (Bill Nye the science guy, rosetremiere the math is near!)