I'm not saying you can only know a couple of frameworks, but it 's hard to be an expert in Python/Django, Ruby/Rails, Node.js and Java. You can do the same for

I'm not saying you can only know a couple of frameworks, but it 's hard to be an expert in Python/Django, Ruby/Rails, Node.js and Java. You can do the same for frontend stuff. For example: I think it's a better option to be a Django and Angular.js expert, good at Node.js and Backbone.js.. and kind of ignore projects related to Java, Rails, Ember, React etc. You can pick anything you want, it's just an example. You can still work on side-projects with the trendy stuff and migrate depending on your interests and the market, but you shouldn't transition into new things every month. Just my 2 cents, best of luck. :)