Undoubtedly, an average person knowing how to interpret facial expressions and, more broadly, body language and emotions could benefit in many ways in their daily life. However, I am specifically wondering about job opportunities for people intimately familiar with the FACS [0] - whether in tech or beyond. What kind of companies, agencies, or institutions hire these people? What are the possible salary ranges?
[0]: https://en.wikipedia.org/wiki/Facial_Action_Coding_System