1) Grad degrees are not always contingent on undergrad degrees. 2) Employers (good ones, anyway) care more about ability than pieces of paper. 3) Hard to say

1) Grad degrees are not always contingent on undergrad degrees. 2) Employers (good ones, anyway) care more about ability than pieces of paper. 3) Hard to say if you're actually "reasonably familiar" with what you would have learned with a formal CS education, so can't comment on that. I'm a little skeptical since real-world work and CS education are pretty different things, but I sure could be wrong on that one.