Twitter's former 'Mr. Fixit' takes over analytics start-up Mixpanel as 29-year-old CEO steps down By: CNBC.com News April 24, 2018 at 14:00 PM EDT Mixpanel co-founder and CEO Suhail Doshi is being replaced at the helm by ex-Twitter executive Amir Movafaghi Read More >> Related Stocks: Adobe Systems Alphabet-A Intuit Paypal Holdings Twitter, Inc.