Ask HN: Is it unprofessional to leave a new job where everything is a mess?
6 months is a perfectly reasonable amount of time to judge a job and leave it.The important thing is to be able to defend it in future interviews, and do so in a reasoned way rather than an emotional one. For example instead of "the team were incredibly frustrating to work with and ignored all my suggestions", instead "the culture made it very hard to do quality engineering, which over time was demoralising". Sweeping statements about crap organisations sometimes come off as petty on the part of the person making the comments - individual specific examples work better (e.g. a specific, obviously wrong, architecture problem with one framework, rather than talkinga bout them all as a group).