I moved into team lead and then senior management and then executive management. I've stuttered all my life and block and do all of the usual stuttering stuff. Tried various forms of speech therapy and nothing worked for long so I just built up my confidence. People told me that my stutter made me seem more honest and likeable and even more respected. And people's confidence in my abilities boosted my own self confidence which helped with fluency. I even started speaking at tech conferences! The sales guys brought me along to secure huge new clients and I ran a whole service line for a global consultancy involving multinational travel and teams. The stutter was a pain sometimes but looking back I can now see that my stutter *helped* my career! People already respect you for your abilities and are cool with your level of fluency. That's your ticket to a career progression. Go for it. You'll be glad you did.