"Growth hackers are a hybrid of marketer and coder, one who looks at the traditional question of "How do I get customers for my product?" and answers with A/B tests, landing pages, viral factor, email deliverability, and Open Graph. On top of this, they layer the discipline of direct marketing, with its emphasis on quantitative measurement, scenario modelling via spreadsheets, and a lot of database queries."

Source: Andrew Chen

Andrew Chen works at Uber on their Growth team. He writes about mobile, metrics, and growth at http://andrewchen.co. He is an advisor/ investor for tech startups includingAngelList,Barkbox, Dropbox, Grovo, Kiva, ProductHunt, Tinder, Wanelo, and Gusto.