> I have a non-STEM degree and no internships. I picked up my first web dev jobs just from scouring Craigslist. Smaller companies that were open-minded enough to give a junior dev a shot.

Given that, are you sure you're 100% on the technical side of interviewing...particularly algorithmic type questions? Whether you agree with the approach or not, they tend to be more common and given more weight with bigger companies.