Why would you debate putting it on your CV? It'd look a lot worse to look like you were out of work for that time. Besides, a startup that wouldn't hire you be

Why would you debate putting it on your CV? It'd look a lot worse to look like you were out of work for that time. Besides, a startup that wouldn't hire you because you worked as an engineer at a failed startup would be insane. I'd be more afraid to hire engineers from startups that did succeed, because I doubt they'd be as motivated the second time around after the big windfall.