I am a Human Factors Psychologist. I started in engineering for a year at a community college then worked in a mobile home factory for a few years and then went back to school for psychology. I did not find out about Human Factors until I was in graduate school for experimental/cognitive psych and was so excited to find Human Factors that combines engineering, psychology, research, design, yoga, and building stuff. I believe it continues to be a growing profession, as all products and services need usability and utility. "Design Thinking" and user centered design!! Look at job tasks like "user interface design", usability testing, and Innovation prototyping. I have been doing this in the software and web product space for almost 30 years and it is new every day.