Below are some careers that require math and physics background and contribute positively in the development of the society. That's why I believe they will always be on demand and offer great future to those they choose them. I think anyone who is looking for a great job should give them a serious consideration.

Seismologists There is not doubt  that working in the field of earthquake prediction and preparation can help save a lot of lives which is the main goal, but can also minimize the financial impact on local and global economies due to the interconnection of the financial markets. That's why  more and more governments, international institutions and business realize that they have to invest more in this field. Meteorologists Urban planners Medical physicists Medical radiation technologists Optometrists