Jonathan started his research career with a PhD studying the role of mechanics in stem cell differentiation pathways for bone and cartilage tissue engineering applications at the IRC in Biomaterials at the Queen Mary University of London. He later developed his post-doctoral career at both QMUL and the University of Cambridge. Jonathan led the cell biology team at the National Measurement Laboratory hosted at LGC ltd in the United Kingdom, where he was responsible for formulating and steering a centrally funded cell metrology research program, fostering collaborations and delivering analytical solutions for a range of government, private industry and university sector stakeholders. From 2018 to 2023, Jonathan was the Chair of the cell analysis working group at the Consultative Committee for Amount of Substance (CCQM) at the BIPM, Paris, where he also helped steer the development of international cell metrology strategy as well as committee level strategic planning. He has also been actively involved in several international standardisation committees including at ISO, CEN and ASTM. Jonathan is currently an independent scientific consultant.