TikTok's CEO used to work for Mark Zuckerberg as a Facebook intern. Just one decade later, he's become one of Meta's fiercest competitors

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Shou Zi Chew may be the CEO of Mark Zuckerberg’s biggest competitor, TikTok, but at the start of his career, he worked for Zuckerberg as an intern at Facebook.

The Singapore native earned an economics degree from University College London before getting his MBA at Harvard Business School, where during the summer he interned at an up-and-coming company: “It was called Facebook,” Chew told Harvard’s Business School alumni website.