Mark trained at West Kent College and worked at several respected restaurants including the role of Chef de Partie at Read's Restaurant in Faversham. He was voted as Young Chef of the Year in 1996 and The National Chef of the Year in 2002.

Mark first worked with Gordon Ramsay at Aubergine in 1998 before spending three years as Sous Chef at Restaurant Gordon Ramsay in Chelsea from 1998 to 2001. He left there to open the highly acclaimed Gordon Ramsay at Claridge's where he has been Head Chef since 2001 earning a Michelin star in 2002.

He is frequently seen alongside Gordon in shows such as Ramsay's Kitchen Nightmares and The F-Word. More recently he has branched out to make more TV appearances on his own, and is the first guest chef on UKTV Food's Market Kitchen.