Uber's executive team just went international.

The high-end car service, which started life in San Francisco, announced Tuesday that it was hiring Netherlands native Kees Koolen as its new COO.

In a blog post about the hire, Uber CEO Travis Kalanick said Koolen's experience will help Uber scale globally. According to Uber's website, the service currently operates nine U.S. locations, plus Toronto, Paris, and London.

Uber CEO Travis Kalanick tells Inc. that Koolen will be splitting his time 50/50 between North America and overseas locations.

Koolen is the former CEO of Booking.com, a hotel reservation subsidiary of Priceline.com.

Uber already has offices in London and Paris, TechCrunch reports.