You have learned Mule 4. Now what? This was the question that my mentee asked me. But what did I tell her? In short I told her any language she uses to enhance her skills as a MuleSoft Developer would help her career, but there are many languages that may be a better fit. Keep reading to find out my recommended languages for MuleSoft Developers. 

https://www.futureprooftechskills.com/post/4-programming-language-mule-devs-should-learn