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Mario Vieira is an experienced professional in workplace management and operations, currently serving as the UK Workplace & Operations Manager at TikTok. Previous roles include Real Estate & Workplace Coordinator at Twitter and various positions at JLL, such as Facilities Coordinator and Facilities Operations Specialist. Mario Vieira also held the position of Network Operations Specialist at Jefferies and worked as a Switchboard Operator at Mandarin Oriental Hotel Group. Mario Vieira holds a Bachelor's degree in Psychology from London South Bank University, earned between 2010 and 2013.