From 2012 to 2019 Mark led the design of GOV.UK, the UK government website. During that time GOV.UK became the first digital product to be awarded the Design Museum's Design of the Year award and a D&AD Black Pencil. In addition to working on GOV.UK, in 2015 he took over as Head of Graphic Design for the Government Digital Service, overseeing the visual and communication aspects of everything GDS produces.
Before GDS Mark worked at the BBC on the 2010 News website redesign, the BBC Global Experience Language (GEL) and the 2012 responsive redesign. He graduated in Critical Art Practice from the University of Brighton.