Several years ago, when I was taking an English language course, one of my teachers said that one of her acquaintances did a Ph.D. in Biomedical Engineering and became a Headmaster in a Bilingual school.

At that time, I didn't think much about that information. However, since, I am preparing for a Ph.D. entrance, this question has become a sticking point in my mind. However, there is no way I can find this particular teacher and ask the question.

**Why might someone work in a non-STEM field after completing a Ph.D. in STEM?**

Let us define a STEM position as a position in which using STEM knowledge is the *primary* job responsibility.

For example, A Biomedical Engineer (BME) working as an entrepreneur in a biomedical engineering firm can be considered a STEM job. A Biomedical BME working as a teacher to teach Biomedical engineering is a STEM job. However, the same person working as an office administrator at the same department in the same college is not a STEM job, let alone working as a receptionist, etc. Also, a BME working as a patent lawyer **is** a STEM job.