 During his career, Bigi has been a research associate in many research teams in laboratories for Physics around the world.To summarize, some of them were SLAC (1973-1974), the Max Planck Institute for Physics in Munich (1975-1981), CERN (1978-1980), the Fermilab (1984).He has also been a visiting professor to Universities over the U.S. and Europe, with duties currently being performed for the University of Notre Dame, Indiana.