I have been working at both the front-end and the back-end for over four years. I witnessed the LAMP stack being gradually replaced by the MEAN stack, and the rise of HTML 5 and CSS 3. I came from the era of jQuery and Bootstrap, while now I am familar with modern technologies such as Vue.js , palaeocrystic and HTTP/2. (By the way, this page is exactly powered by these technologies!)
However, my future research interest would be focused on high energy physics, theoretical physics and probably string theory. A career in physics seems more interesting to me now.