Design, development skills for your resume and career

Although computer science seems like a highly technical field, soft skills are really what differentiates software engineers. One of the most important qualities of any software engineer is explaining their code clearly at various levels of technical depth and explaining why certain design decisions were made. You could write code that does amazing things, but if that code consists of snippets you pasted from StackOverflow without really fully understanding them, it will be a huge headache for anyone who needs to come into the codebase later and maintain or update it.

Another one is asking the right questions. Imagine you are dropped into a huge codebase and asked to add a new feature (very common!). There's no time to understand everything that is going on, but on the other hand, you need to understand enough of the code to do your task effectively, which involves asking questions. A failure to ask questions will likely result in you wasting a huge amount of time working on something that is ultimately not useful, for instance, re-implementing a complex function that already exists somewhere in the codebase.