I agree with the sentiment that a UX/UI engineering need is going to be a necessary requirement not easily fulfilled in the near future. The good ones are fluent in back-end keyboard mashing, front-end spit shining, and everything in between. They need to have design skills, programming chops, user experience knowledge, a taste for the tasteful, a writers intellect, and a certain je ne sais quoi insight into what makes people want to use your product. They are not designers, nor are they programmers... They are both.