Contact the manager that you most would want to work with (or the manager that you think would be most excited to have you out of the managers that you would li

Contact the manager that you most would want to work with (or the manager that you think would be most excited to have you out of the managers that you would like working with). Set up some time with them, talk to them a bit about how things have been the last few months (focus on what you have learned and what new experiences you've had. It's fine to talk about why you don't like where you've ended up, but don't allow the conversational tone to change to "bitch-fest".) Let them know that you're seriously considering trying to come back. If the manager is interested, this should naturally move into a conversation about the roles that you might be a good fit for -- at which point either they'll talk to the recruiter for you or you'll do so (or both) to kick off the process officially. If the manager doesn't have a role for you, see if they have recommendations for you of others to talk to. Generally speaking, people actually really enjoy helping out in the careers of other people that they like and think highly of, so long as they feel like they're being treated with respect and not just "used as a connection," and the message of "I went away for a few months, and I learned all these things that led me to realize how much I value some of the things I left behind here and want to come back now" is a pretty positive and personal-growth oriented story.