While I benefitted from speech therapy, the single best treatment for me was public speaking. Consider perhaps doing conferences or what have you -- speaking for 45 minutes straight on a topic near and dear to you in a mildly stressful environment is good preparation for speaking for 45 minutes straight on a topic near and dear to you in a mildly stressful environment.
There's another option which you can avail yourself of, which is "I am a technologist in the best market in history for technologists. I have a stutter. Deal with it."