Interpreters play a crucial role in immigration court cases: Only 11% of such cases were completed in English in 2015, according to a Justice Department report.

Those interpreters are in high demand, Connell said. The U.S. Bureau of Labor Statistics reports interpreters and translators in hospitals earn a national average of $21.43 an hour and $44,570 a year.

Interpreters come in various types (community, conference, sign language) and interpreting itself is diverse in that it can be consecutive or simultaneous.