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My interviewing partner sent me an email congratulating me for getting a callback yesterday at around 3 pm. He then called me at around 7 pm. However, the recruiting team has not yet sent me an email. How long does this usually take/how long should I wait before following up? It's a firm that I'd really like to schedule earlier to maximize my chances (and make my decision) but I also don't want to come off like I'm pestering them.

Sometimes it takes a day or two.

Chasing people to do the things they said they’d do will be a key part of your job. Feel free to get a head start now.