During his tenure at the City of London Police, Jonathan led the development of the UK National Fraud and Cybercrime Reporting system. He also contributed to the evidential workstream of the Contingent Reimbursement Scheme (CRM), the voluntary scheme for Authorised Push Payment (APP) fraud reimbursement.

Recently, he served as the Director of Technical Collaborations at Stop Scams UK, working with companies like Meta, Google, and BT to combat fraud at source. Jonathan also worked on several data science projects for the Foreign, Commonwealth and Development Office and Home Office during his time with faculty.ai.

Jonathan currently sits on the board of the Stop Scams Alliance (US 501(c)(3) nonprofit). He acts as an independent consultant to several organisations, assisting them to reduce fraud and cybersecurity risks.