Former chief executive of archaeology and heritage practice at Oxford Archaeology, David took over as Director of The York Archaeological Trust (YAT) in April 2013. YAT is an independent charity, founded in 1972, which investigates the past for the benefit of present communities and future generations – and is one of the bigger employers in entrepreneurial archaeology in the UK with the celebrated Jorvik Centre.

Linking professional skills and archaeological expertise with a broadly based background knowledge and experience, YAT carries out carefully targeted and cost effective archaeological recording, excavation and research for a broad range of clients and partners. The results are made available in a number of innovative and dynamic ways including websites, education days, publications and articles.