Matt Doka is a Founder and GP at Operator Stack Fund. He possess expertise in start ups, entrepreneurship, strategy, analytics, strategic partnerships and 22 more skills. Colleagues describe him as "I love Matt like a brother, and it's hard to recommend him professionally, but I try. Matt co-founded Fivestars, and I joined when the startup was in the Seed stage. It's just amazing to see him having both analytical rigor from McKinsery and the grit to push everything to the finish line. As CTO, Matt was the leader of talented product and engineering managers. And I witnessed him doing so with love, trust, and generosity to the people. He was consistently honest and loyal to his co-founder Vic both good times and hard times. His quality comes from his faith. Seeing his integrity was the greatest inspiration for my growth throughout my career at Fivestars. I feel so lucky to have worked with you, my friend.", "Matt wears many hats; Co-founder, CTO, CRO, CCO, Head of Business Development. This list of acronyms reveals his willingness to do whatever FiveStars has needed to be successful. His tenacity, flexibility and belief are the beating heart of the organization. Our primary interactions were as Head of Design and CRO. Matt was open and engaged about how design improvements could be a key driver of revenue. I deeply appreciated our conversations and collaboration.", and "From the beginning of my time a Fivestars, Matt always had a unique presence to him has a leader. He was present. He was caring. And above all, even as Co-Founder, Matt made himself available to anyone of his direct reports that wanted his time (which is a quality I believe to be rare). With that said, it is no surprise that the organization he created was one that the truly best of people gravitated towards. I am very proud to have worked for Matt and Fivestars, and would recommend him and the company in any capacity."