A mental health aide, also known as a behavioral health technician is a person who is trained to assist medical and mental health professionals to deal with patients with mental or behavioral health issues. They may work at psychiatric or mental health facilities or hospitals. Qualifications for a career as a mental health aide include a mix of job experience, skills, and education. You should have a high school diploma or GED certificate, willingness to help those with mental health issues cope with difficult periods of their illness.