I don't recommend a Master's degree unless you'd like one to pursue a research position in academia or an industry lab (Microsoft Research, IBM Research, Google

I don't recommend a Master's degree unless you'd like one to pursue a research position in academia or an industry lab (Microsoft Research, IBM Research, Google Brain, FAIR, etc). Master's degrees come in two varieties: research degrees (Master's degrees with fewer courses and a thesis) and professional degrees (Master's degrees which are just coursework). Professional Master's degrees are not categorically different from Bachelor's degrees. You'll learn material you don't know that's more advanced than undergraduate material, but it won't really be anything you couldn't have learned on your own. On the other hand, a research Master's degree provides you with meaningful experience in how to do scholarly work. This is categorically different from what you're already used to. There is also advanced coursework involved, but the salient achievement of the degree is a thesis. This process will thoroughly acquaint you with the research frontier of various topics and the way you can independently conduct your own research. In computer science it's not uncommon to accomplish a novel research contribution through a Master's thesis. Research is extraordinarily difficult to teach yourself (it's usually a major red flag for someone in isolation to attempt research that's disconnected from the rest of the field). However, you're already an autodidact given your undergraduate concentration. You have the requisite educational maturity to teach yourself more advanced subject matter if you can find the right material and impose the structure on yourself. For this reason, a purely coursework-based Master's degree would not provide you with anything you cannot fundamentally do yourself for free and while still working full time. Examine your goals closely before you formulate a path forward and decide on it. Do you want to do research? Do you want jobs which mostly look for MSc or PhD candidates? What does the work of those jobs look like - do they emphasize the research component of past experience, or are they just looking for someone with advanced knowledge in a domain? How much free time do you have to devote to this, and are you willing to take a (potentially significant) cut in your salary to do it? The other thing you should be aware of is that Master's degrees are very expensive despite the fact that they're only one - two years consisting of six - eight courses. If you are willing to engage in research, you could try to be admitted to a PhD program instead. You would most likely earn an MSc on the way to the PhD without having to pay for it, because PhD programs are (almost always) fully funded. This also leaves your future options more open, regardless of whether or not you ultimately finish the full PhD.