Ask HN: Is it possible to change job from front-end to back-end?

Hi everyone, I am primarily a front-end developer doing React and React Native for 4+ years. However I recently discovered Elixir(Phoenix) and fell in love with the language. Unfortunately Elixir is a back-end language and all the jobs I search requires 3+ year experience in the back-end which I do not have. Have any of you guys have experience in switching successfully? If yes how did you do it.