Nicolas Garfinkel is a serial founder at the intersection of marketing and machine learning. Before turning to startups, he spent over 15 years leading growth, analytics, and product initiatives at Microsoft, Amazon, and eBay — managing $100M+ in annual advertising spend, building data products processing billions of events a week, presenting at conferences like Microsoft Ignite, and winning innovation awards along the way. After serving as head of product at HundredX, a series-D data insights company, Nicolas founded Kixely and MindfulConversion, a data-driven marketing and analytics agency supporting early-stage startups, and now builds AdCortex, where he writes about Google Ads performance, analytics, and automation. In his free time he plays ice hockey and dry-ages his own meat. He lives with his wife and two kids in the Greater Seattle area.