Exactly. I was concentrating on backend the last few years and didn&#x27;t have much frontend tasks. I recently switched to a new project that was developed by a generally younger team, and it&#x27;s way more complex.<p>Instead a JSP &#x2F; ASP &#x2F; Rails template files with a single CSS and JS page, along with JQuery and a few libs, there is a whole build process with dependency hell and a dozen tools to master - bower, grunt, npm, karma, etc.<p>Writing the frontend with promises and async patterns is actually more difficult than the backend which has been slimmed down to basic Rest -&gt; Service - DB calls. Honestly, I&#x27;d probably do pretty poorly on an interview too, these days, if a &#x27;Ninja Full Stack&#x27; dev. was desired.