What country are you in? How long was the company afloat? Was it ever cashflow-positive? Were you the technical guy or not? Your career prospects largely depen

What country are you in? How long was the company afloat? Was it ever cashflow-positive? Were you the technical guy or not? Your career prospects largely depend on answers for those questions - it is different in US (attitude towards failure), different for non-techies, etc. etc. If your company was cashflow positive, then you can show at least temporary success to others (in objective, business terms).