I'd say look now, if you are really nervous about how it looks to serve a short stint, tough it out 12 months, then look. I'd say do what you'll be happy with. As far as what to look for. Try to find out exactly what you'll be doing, working, etc before you accept. If possible, talk to people in the position you will have, either on linked in, or in person, formally/informally, whatever. I wish I did that at my last job. In my current job, I had a pretty good understanding of my day to day before I accepted.