I think the difference between a junior and senior front-end developer isn't in their understanding or familiarity with a particular tech stack, toolchain, or whether they can write flawless code. Instead, it all comes down to this: how they push back against bad ideas. What I've learned this year is that web performance will suffer if you don't say no to the marketing department because you'll suddenly find yourself with eighteen different analytics scripts on your website. If you don't … Read ...