It’s a question that’s been debated for decades within the software community—what qualities separate a junior engineer from a senior engineer? In this section, we’ll take a closer look at this question and help you understand why the answers vary so greatly. We’ll also explore a few topics that are absolutely critical if you’re working towards a promotion to a senior role. By the end of this section, you should have a concrete idea of the differences between a junior and senior engineer. Let’s get started.