An electronic engineer and a physicist, he is a professor at the Gleb Wataghin Physics Institute, of the State University of Campinas (Unicamp), where he was the rector from 2002 to 2005.
He graduated in electronic engineering at the Technological Institute of Aeronautics (ITA in the Portuguese acronym). He took a master's degree and a doctorate at Unicamp's Gleb Wataghin Physics Institute, and at this institution in 1982, he started his teaching career and today is a full professor of Quantum Electronics.
Brito Cruz was a resident researcher at the AT&T's Bell Laboratories, in Holmdel, New Jersey and was also the Director of Unicamp's Physics Institute from 1991 to 1994 and from 1998 to 2002; Rector for Research at this University from 1994 to 1998, and the President of FAPESP from 1996 to 2002.
He is a member of the Brazilian Academy of Sciences since 2000.