There are many practical applications of mathematics that are widely used in real world. You may have to slightly tweak your skill set (e.g., with a computer software language that is appropriate for the industry/business), and with your applied mathematics degree you will be a well sought after candidate in many types of businesses/industries. Following are some of the most common areas where applied mathematicians would be welcome:
- Applied Statistics: The currently rapidly growing field of “data science” is mostly applied statics (with a computer lanaguge skill and knowledge of the domain) and may be a good choice if you want to get on the ground floor of this emerging software technology offshoot.
- Scientific/Engineering computations: Mathematical modelling (using numerical analysis or finite element analysis), also known as “simulation”, is widely used in many fields such as cumputational fluid mechanics (part of mechanical engineering) and many other engineering/technology areas (including creating video games).
- Informatics: There are many newer fields such as bio- or biomedical- or health informatics which could use your applied math background. These are emerging fields which may have many opportunities.
- Mathematical Economics: Uses statistics, mathematical programming, computational methods, operations research, game theory etc.
- Operations Research/Management Science: This is widely used in many businesses, industries, armed forces and governments.
- Acturial Science: Risk assessment in insurance industry, finance and other industries - uses statistics and economics.
Depending upon your interests, your location (country), and the situation in the job market (that is, supply of graduates/candidates vs. demand for employees) for applied mathematicians, you may find that one or more of the above areas would offer excellent career opportunities for you. My suggestion would be to do some research into these variables, and then take some (probably no more than one or two) addtional courses (could be online), on a part time basis, and also to get familiar with the industry/business that you are interested in. This will show them that you are interested in their industry/business, and so would find your candidacy (with your qualifications, skills and interests) to be a suitable match for one of the job opportuinties. Good luck!