Andrew joined HSL in 1991 after completing a PhD in cancer research at Nottingham University. Whilst at HSL he developed a research interest in occupational respiratory disease and he has published and lectured extensively in this area. Andrew is currently the Director of Science and Resources at HSL and his responsibilities include the professional leadership of the scientists, engineers and technical specialists within the organisation. He also ensures that the available human resources match the requirements of HSL's customers. Andrew helped to establish the Centre for Workplace Health (CWH) with HSL's Chief Medical Officer, David Fishwick. . CWH is an academic unit of the University of Sheffield and Andrew is the Scientific Director of CWH. He is also an honorary Reader at the University of Sheffield and an honorary Fellow of the Faculty of Occupational Medicine. Andrew is an active member of the International Commission on Occupational Health, and is a member of the UK organising committee for the 2011 meeting on epidemiology in occupational health. He also Chairs a European group on Well-being.