Rainer Rudolf Mueller Mueller has 24 years' experience across 10 countries and was executive chef at the Oryx Rotana in Doha, Qatar before moving to Dubai. He replaces Alan Snyman, who has accepted a position at another Rotana hotel. He will oversee the dining aspects of the five-star hotel’s portfolio of five restaurants, including Rosso and Benihana, in addition to the in-room dining and banquet operations.