The first week decides how fast someone becomes productive. A simple checklist removes the guesswork for the new person and for the team.
Prepare the accounts before day one, assign a buddy for questions and choose a small task they can finish in the first two days.
A first small win
Nobody remembers the welcome email. Everybody remembers their first shipped task.
At the end of the week, ask what was confusing and update the checklist. Every new hire makes the next onboarding better.
