The designer founded his own agency in 1998 in the 11th arrondissement in Paris and in 1999 he met Alain Ducasse with whom he collaborated designing many restaurants such as the Alain Ducasse au Plaza Athenee, Be boulangerie-epicerie, in Paris, and Mix New York restaurant.
Jouin intend to revise the industrial culture selecting mass-industrial machinery forms - blast furnaces, turbines, chimney stacks, moulds, forges - and integrating them into the world of luxury.
In 2011 he won Compasso d'Oro ADI Award with the Pasta Pot designed for Alessi.