Christina is currently the Chief Executive at the Royal Society for Public Health. Following an early career in advertising, for 13 years Christina led the marketing consultancy she established in her 20s.  She was tempted into academia as a research fellow working on health inequalities at the University of Central Lancashire and was seconded to health inspectorates to run a national census of mental health inpatients that investigated ethnicity-based inequalities. 

She moved into the NHS to spearhead a regional, place-based health equity programme before becoming National Lead for Health Inequalities in the then newly-formed NHS England. Her move into the third sector was via the Head of Policy and Public Affairs at Nacro before taking up the Chief Executive role at Revolving Doors Agency.

Christina has served on a significant number of advisory Board including the Ministerial Advisory Board on Female Offenders, the Reducing Reoffending Third Sector Ministerial Advisory Group (RR3) and a Civil Justice Council working party. She chaired the Bradley Report Group and the Health Inequalities Reference Group. She was a Visiting Fellow at the University of Southampton and was a finalist in the Third Sector Awards Chief Executive of the Year 2019.  Christina joined the board of Trustees at Hestia in December 2018.