Sergi is a senior administrative officer at the STI and Skin NTD Unit of the Fight AIDS and Infectious Diseases Foundation/ Germans Trias i Pujol University Hospital. At present, he works as a personal assistant for the Trep-AB and Yaws 3 projects.

He obtained the title of Tax Advisor from the ESINE Campus and the Diploma of Insurance Advisor issued by the Winterthur insurance company.