I’m not sure how long I should wait before following up?
If you don’t hear back from an interviewer immediately away, wait until the interviewer’s deadline has passed before contacting them again. If the deadline has passed and you haven’t heard anything, write a quick follow-up email to remind the interviewer of your qualifications and interest in the position. You can follow up every 7-10 days for the next two follow-ups, for a total of three follow-ups. If you haven’t heard anything, it’s time to move on.