Roadmap to becoming a web developer in 2019

Like I said above, code is code. Code is just syntactic sugar around concepts, and concepts transcend languages and environments. Understand the concepts and you can pretty easily jump around just about any programming environment, from front end to back end to desktop to mobile.

It's kinda weird to me how many people think these things are so different when really they're not. Yes, every language will have its quirks and every context will have domain specific knowledge and tooling. But they are more similar than they are different, and once you grok the similarities, the differences become easy to recognize.

I've seen so many things (languages, toolkits, environments, etc) come and go over the years that I refuse to be pigeonholed into one specialty because they always change, often without warning. Ask a Flash developer how they feel about that today - in one day (the day the iPhone was released) that whole industry collapsed. The great thing about being a generalist is that you can move on, jump in and do the work that needs to be done, no matter what that work is or where it is.

Every so often something genuinely new will come along, that requires some learning and understanding. The container ecosystem are a good fairly recent example of that. But as a generalist, it doesn't look hard or magical to you because it's just something you haven't learned yet. You're prepared for that and you have the understanding to know what you need to know. You also know your limits, and the things that do (or don't) interest you and can adjust the arc of your career appropriately.

I routinely work back and forth between front and backend every day. That is a normal day for me, I love it and and I would not change it. Occasionally I'll lend a hand on an iOS app (that we're about to migrate to React Native as it happens) and maintain some internal Mac apps as well as writing my own Mac apps for fun. I've also run a side consulting business for several years to keep my skills fresh where I tackle everything from DevOps/server maintenance/cloud migrations to frontend/backend to desktop and mobile development. Basically whatever itch I'm feeling at the time.

Concepts translate pretty easily and, where they are different, as a generalist you accumulate enough experience to know what those differences are. And if companies want to divide their jobs into "front end" and "back end," that's fine, because you have the knowledge to apply for either. :)

A lot of people in this thread are really selling themselves short. They know more than they realize and the "other side" of the stack is not some mysterious magic that requires years of intense specialization. It's just programming. Same thing we've all been doing for years.

"Specialization is for insects." - Heinlein

Nobody "needs" anything, so it's not a fair standard to set.

I'd say if you're a developer and you don't know about something on this list, you should probably learn about it. Master? Nah. Know what it is/means? Yeah.