Dr Birkett joined the Mechanical Engineering Department at Northumbria University in 2011. Prior to this he worked in the manufacturing industry for sixteen years, where completed a Craft Apprenticeship before moving on to work as a Manufacturing Engineer and then a Senior Research and Development Engineer, primarily working on the development of new thin film materials and processes. During this period, he also studied on a part-time basis for a BEng (Hons) degree in Manufacturing Systems Engineering and a PhD degree in the area of thin film materials and coatings.  

In his current role, Dr Birkett is the Deputy Head of the Department and leads the Engineering Materials and Mechanics Group (EM²G). He mainly teaches on the Mechanical Engineering degree programmes in the areas of materials and manufacturing technology and systems. His research is focussed on the delvelopment of new thin film materials and coatings for mechanical, electrical and biomedical applications.

Dr Birkett is a Senior Fellow of the Higher Education Academy (SFHEA), a Fellow of the Institution of Mechanical Engineers (FIMechE), a Chartered Engineer (CEng) and a full member of the EPSRC Peer Review College.