Spoken English is more than just a language. It is also a career field that offers opportunities to all kinds of people with different skill sets and backgrounds.
There are two types of careers related to Spoken English
Job opportunities through English learning centers and schools, which can provide full-time or part-time employment and pay either hourly or by the project
Career opportunities through the National Association for Foreign Language Teachers (NAFT), which can provide membership benefits, publications, conferences, etc.