Until August 2023, Josh was a Labour Party Policy Adviser, supporting Jim McMahon MP, the Shadow Secretary of State for Environment Food and Rural Affairs. In this role he played a central role in shaping Labour policy development, campaigns and media management. He frequently advised Keir Starmer.​

Josh has a long career history with Labour, having previously worked on Keir Starmer’s leadership campaign, as Head of Office to David Lammy MP, Communications and Policy Officer to Janet Daby MP, Digital Officer to Owen Smith MP, and Senior Researcher to Baroness (Angela) Smith. ​

Between party jobs, Josh has worked in in-house public affairs and advocacy roles for a range of prominent Animal welfare charities, including the International Fund for Animal Welfare, World Animal Protection and the League Against Cruel Sports. ​