Waldorf has led multiple tech startups since then. His current mission is to help people who are not unlike his teenage self: entrepreneurs, self-starters, and those working in the burgeoning freelance movement. His company, Invoice2go, enables “gig economy” workers and small businesses to bill their clients on the spot and get paid using their mobile phones. In his words: “Look more professional, save time, get paid faster.”
Source: One Way to Boost the Gig Economy: Streamline Invoicing | Stanford Graduate School of Business