>>And having a single development job at a big company for a decade isn't some kind of career-killing move... unless you turn it into one, by letting your skills stagnate and wither, which is on you.
HN is going to hate me for saying this, but there's another problem besides your actual skillset. At least in the start-up bay area scene, working 10 years at a big company[1] absolute is a negative to a bunch of people because they __assume__ you won't be a good culture fit.
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1. Not talking about the Facebook/Apple/Google trendy companies. I'm talking of Wells Fargo, JCPenny's and at&t.