I pivoted from C# to Elixir after a former manager (and now friend and co-founder) put me onto it as part of a project we were doing for a high volume eCommerce solution. I did another C# job after and then when the opportunity struck, I dove head first into full time Elixir development. I have no regrets. It feels like any problem I have can be solved with a bit of elbow grease and some proper thinking. Phoenix is a bit too opinionated for my liking, but I can't deny just how much more productive it is for me vs C#/.NET. All 'round, my career is the better for working with Erlang/Elixir.