Brito Cruz graduated in Electronics Engineering (ITA, 1978) and has a doctorate in Physics (UNICAMP, 1983).
He was a visiting researcher at the Quantum Optics Laboratory at the Universitá di Roma, at the Femtosecond Research Laboratory at the Universitè Pierre et Marie Curie, and a resident researcher at the AT&T's Bell Laboratories, in Holmdel, New Jersey. He was a member of the special committee formed by the Inter Academy Council, at the request of the U.N. SG, to review the IPCC procedures (2010). He was the Director of Unicamp's Physics Institute, Pro-rector for Research, and Rector of the university. He was the President of FAPESP from 1996 to 2002.
Brito Cruz is a member of the Brazilian Academy of Sciences, received the Ordre des Palmes Academiques de France, the Order of the Scientific Merit from the Federative Republic of Brazil, and the Order of the British Empire, Honorary (OBE).