Dr Kelly was awarded a doctorate in philosophy (PhD) from UNSW in 2022 for work in the field of B-cell immunogenomics and autoimmunity, supervised by Prof Chris Goodnow at the Garvan Institute.
He has several first author publications in high impact-factor journals, and has presented his work nationally and internationally, including at EAACI. He also works as a staff specialist in allergy and clinical immunology at Blacktown Hospital, conjoint senior lecturer for Western Sydney University, and immunopathologist for the NSW Transplantation and Immunogenetics Services, Australian Red Cross/Lifeblood.