Junior Sous Chef - Oswald’s - Mayfair, London RB Holdings is a growing hospitality group shaping some of the most distinctive private members’ clubs and food businesses in London and New York. Founded by Robin Birley, our businesses are built on discretion, craftsmanship, and deeply personal service - delivered by teams who take pride in doing things properly. Our London portfolio includes 5 Hertford Street, Oswald's, Nico’s, and Birley Bakery and Chocolate Shop in Chelsea. In 2025, we expanded…