Hamidaddin has been the founding CEO and board member of the STA since 2019. He oversees the development of the Visit Saudi brand and innovative initiatives such as the (Tourism Sector Accelerator Program) and the launch of the Nusuk platform. In November 2024, the STA introduced SARA, an AI-powered digital human serving as a virtual brand ambassador and concierge. Hamidaddin is a board member at several organizations such as the Tourism Development Council, Qiddiya Investment Company, and Saudi Arabian Airlines (SAUDIA), among others.