Mark began his career as an expat tax advisor for international clients with PWC, and later became an in-house global mobility manager for Deloitte in the Netherlands. He lived and worked for three years in South Africa as Global Mobility Lead for Unilever. In 2015, Mark joined Arup in London as Head of International Mobility. And since 1 November 2018 Mark is based in Amsterdam as Head of Mobility with Booking.com. Mark is also a member of the Advisory Board with Certino and is a registered Senior Global Mobility Strategic Talent specialist (SGMS-T) with the Worldwide Employee Relocation Council and a regular speaker at global mobility industry conferences.