When compared to the people who can speak only English or Spanish, bilingual people who can speak both of those languages have increased opportunities in many fields. They are employed more when compared to other people. Employment opportunities for them are there both in public and private sectors. Here is a list of few fields or jobs in which there are increased opportunities for English and Spanish speakers.
If you are really interested in teaching, you can make a living out of it by becoming a language teacher. There is a huge demand for Spanish teachers, since it is the second language for most of the schools. However, in order to become a Spanish teacher you need to complete a language teacher certificate program. This certificate enables you to teach Spanish in the state as an official certified trainer/teacher.
When it comes to public sector jobs, knowing Spanish is quite helpful for the jobs of Border Patrol agents. These people must be fluent in Spanish as they need to communicate with different people across the US borders. Not only in this particular job, but for all the jobs which are meant for public service or the jobs which include meeting and communicating with large groups of people knowing Spanish and learning it fluently is quite essential. For example, in fields like health care, Banking, telemarketing, etc., knowledge on the local languages is must, since it involves communicating with public.
In the fields of interpreting and translating, Spanish is used in order to make Spanish to English, English to Spanish or any other translations and interpretations. These are the few fields which require employees who are bilingual.