What should you have ready before the calibration call?
Have the essentials ready: the pay range you can approve, the shift pattern, who the person reports to, which systems they will run and the decisions they will make alone. A note on why the seat is open also helps. You do not need a polished brief, only honest answers to these questions.
The pay range is the question hiring managers most often leave open, and it is the one that most affects who will talk to us. Experienced data center people who are working today will ask about pay early. An approved range lets us answer honestly and avoids a promising candidate dropping out at offer stage.
Think about the interview process too. Who needs to meet the candidate, how many rounds you expect and who signs the offer all shape the plan. If several approvers are involved, it helps to know that before outreach starts rather than after a candidate is waiting.
Finally, consider what would make the role attractive to someone who is not looking. Better equipment, a stable rotation, a clear path to a senior role or a team that is respected on site are all reasons people move.