Disclosing is the answer, but watch out how it's framed. The way I used to disclose my stutter to employors was to tack on a "but I'm working on it" on the end. This implies that after enough easy onsets and x amount of hours of speech therapy I wouldn't be a stutterer anymore and this, as you all know, is not how stuttering works. I think this allowed former employers and coworkers to view the fact that I still stuttered after working there for 5 years as some sort of character flaw; if I still stuttered even if I'm "working on it" that means I'm not working on it and am lazy, lack work ethic, not trustworthy, yada yada yada. Please learn from my mistakes!!! Disclose, but don't apologize or make excuses for it. The disclosure script given by shallotmirror is excellent, to the point, and tells the hiring manager that the stutter is not a weakness but just a thing you do.