Depending on how much else you have going on in your life, and how much of that 8 years of salary you saved, you might want to consider getting an engineering d

Depending on how much else you have going on in your life, and how much of that 8 years of salary you saved, you might want to consider getting an engineering degree and gaining some domain specific knowledge; I doubt a few more general CS courses will dramatically change the types of problems you will be considered to work on. I can't speak for you, but most people's concept of "real problems" means that there is a simple and direct way in which they can see people in society benefiting from their work, and those problems tend to get domain specific in a hurry. i.e. if you want to get to work on improving the water people drink or the air they breathe, you're probably going to need to know some chemistry. An upside of being an engineer who also happens to be a good programmer is that your interviews won't be pure coding interviews.