 He started his career on Tele Journalism on June 22, 1975 in Brasilia when he was 28 years old.He currently works for Rede Record.Before joining TV Record, Hummel worked for 21 years in Rede Globo's news reports "Jornal Hoje", "Jornal Nacional", "Jornal da Globo", "Fantástico", "Globo Esporte", "Bom Dia Rio" and "Bom Dia São Paulo" and has served also as the publisher and editor.