 <p>If you want to focus purely on front end development work there is little need to know a great deal about back end stuff. If you are proficient in angular, javascript, html and css then you are on course. I would suggest taking a couple of interviews and seeing what they ask you that you feel weak on, and taking it from there.</p> <p>There comes a point when you have to just "go for it". The best learning is done in the dev projects.</p>