I’ve found that informing the interviewer I stutter right at the start makes me feel more confident during the interview and during moments of stuttering. A script such as “before we begin I want to share that I’m a person who stutters so you may hear me repeat some sounds or pause at times (you can include any other behaviors you do during moments of stuttering). Please don’t hesitate to ask me to repeat or clarify anything if need be” shows the interviewer that you take initiative and makes it more comfortable for both parties.