Originally Posted by The701Express

If you come in as an FO, give the company at least 12 months once you get your ATP and you'll be more than welcome to move on and remain in good standing. 12 months is enough time for the company to make a return on their end of the investment (training you). It's also enough time for you to enjoy at least 2 seasons of flying, perhaps flying in a different region or two, or three, and to get some solid experience as well as a few good flying and non-flying stories along the way to help pass time at your new job/crashpad/over beers.

Do your homework and know what you're getting into. If you get an interview, be yourself. If you get the job, don't be in so much of a rush to move on that you miss out on enjoying the job.