I got hired recently at one of the big tech companies that start with a G. I stuttered in my interviews but it varied and this was my experience - If I was asked something and I knew the approach to solve it, I wouldn't stutter much. In fact I would not stutter at all if I was damn sure about the answer. I don't know how but on that day, I didn't give two f**ks about my stutter because I was really confident about my technical skills and that pride overshadowed the fear I have for my stutter. Ofcourse, there were those moments when I was doubtful about my approach and I stuttered but I think most people stutter/stumble when they don't know the answer anyway. So, my tip here is: Prepare for the interview better than most people do, and your confidence in your knowledge will overshadow your fear to stutter.