My general rule is that I will stay with the same job for at least 1 year. Part of that is to not look like I'm job hopping, but mostly it's because it generall

My general rule is that I will stay with the same job for at least 1 year. Part of that is to not look like I'm job hopping, but mostly it's because it generally takes me around 6 months to fully acclimate to the environment and another 6 months to get deep enough into development to figure out if it's somewhere I want to stay. Of course that timing changes depending on the product and company. If you're working on a well established product at a medium to large company it may take longer to do much real development (beyond bug fixing and paper shuffling), so it may take longer to figure out if you want to stay longer. However, at a startup, you'll probably be dropped right into the fire on the first day, so you may be able to determine that more quickly. When I've looked at resumes, anything less than a year at a job usually raises a flag. Unless there are a lot of jobs on your resume like that, it's not a negative thing, but I would absolutely ask about it during an interview.