Spencer took the crown of Roux Scholar 2019 at the age of 26 while working as Premier Sous Chef at The Ritz, London. He first entered the Ritz' kitchens on work experience at the age of 15, after which he gained a position as apprentice, later working his way up to sous chef. In 2016, Spencer left to spend a year working at L'Enclume in Cartmel as chef de partie, before returning to The Ritz in summer 2017. He was promoted to head chef in July 2021. Also, that month, he was awarded an Acorn Award from The Caterer, celebrating his success as one of the 30 most talented stars under 30. In 2021, Spencer took part in the 17th series of the BBC2 programme Great British Menu and was the first ever chef to cook two of the dishes in the banquet and was named overall winner - 'Champion of Champions'! In October 2022, Spencer realised a lifetime ambition and was named a Master of Culinary Arts by the Royal Academy of Culinary Arts.