I've been a professional software developer for over 25 years and in that time I have seen very few "computer science" related problems that needed solving. Su

I've been a professional software developer for over 25 years and in that time I have seen very few "computer science" related problems that needed solving. Sure, it depends what type of work you do. E.g. if you work on limited power embedded devices for the medical industry your work as a developer will probably lean more towards the comp-sci end of the spectrum whereas if you're building snazzy browser based UI's with React. How well you perform with Project Euler problems has absolutely nothing to do with how great a developer you are or whether or not you could consider yourself a developer because of it.