I’ve found in my career it’s crucial to continue your education in some form or another. That can be a simple as reading up on the latest news in your field, or taking online courses. It's somewhat difficult to find and shift through all the resources that are out there. So here are some of my suggestions for continuing your education.
Practical Object-Oriented Design in Ruby
99 Bottles of OOP
Rails 5 Test Prescriptions
Pragmatic Programmer's Elm Course
Pragmatic Programmer's Elixir Course
Programming Elixir 1.6
Videos from confrerences: